Dimitrios Mytilinaios MD, PhD The medial epicondyle is a blunt projection superomedial to the medial condyle, which forms at the end of the medial border of the humerus. Learning anatomy is a massive undertaking, and we're here to help you pass with flying colours. The anteromedial surface is located between the anterior and medial borders of the shaft/body, beginning proximally at the floor of the intertubercular sulcus. Infratubercular 4. Copyright © Ambiguities arise concerning to the anatomic position of the implants and the resulting mechanic performance. 10.1055/b-0036-129609 Proximal Humerus Fractures and Shoulder Dislocations Michael J. Gardner and Andrew H. Schmidt Proximal humerus fractures represent up to 5% of all fractures, and they most often occur in an elderly person with osteoporosis as the result of a fall. The lateral portion of the brachialis muscle originates from the distal part of this surface, as well as from the proximla two third of the lateral supracondylar ridge. In elbow extension, the tip of the ulnar olecranon process lodges into this fossa. The anatomical neck separates the greater and lesser tuberosities from the humeral head. Movement of the humerus is essential to all of the varied activities of the arm, such as throwing, lifting, and writing. It extends from your shoulder to your elbow, where it joins with the ulna and radius bones of your forearm. (A) The humerus is proximal to the scapula. The proximal end or extremity of the humerus consists of the head, an anatomical neck, and the greater and lesser tubercles. From superior to inferior, the muscles that attach at these impressions are the: Remember the muscles attaching to the greater tubercle of the humerus using the following mnemonic! The nature of the elbow joint enables the movements that are limited to the arm and forearm, and cannot be performed within the other parts of the body, such as supination and pronation. Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users. The proximal end of the humerus articulates with the glenoid cavity of the scapula at the glenohumeral joint. The margin of the smooth area of the head is the anatomical neck of the humerus. The medial epicondyle is a blunt projection that forms the end of the medial border of the humerus. The shaft or body is the middle part of the humerus, and it gives attachment to several muscles. It is located superomedially to the medial condyle. The ulnar nerve crosses its smooth posterior surface and is palpable in this location. The greater tubercle is the most lateral portion of the proximal end of the humerus. It connects the scapula and the lower arm (consisting of the radius and ulna), and consists of three sections. It has a smooth proximal surface and is largely covered by the deltoid muscle. (B) The radius is medial to the ulna. The upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities.) During flexion of the elbow, the coronoid process of the ulna lodges into the coronoid fossa. The radial groove is a shallow groove that interrupts the medial border in its medial third. • Their incidence is increasing with the aging of the population. It is composed of three components:... Anatomical Position And Side Determination of The Humerus Bone. In the anatomical position, the head faces in a medial, superior and posterior direction where it articulates with the glenoid fossa of the scapula. These fragments were the articular head, the greater and lesser tuberosities, and the humeral shaft.1,2,122 Kocher’s classification He classified proximal humerus fractures based on anatomical level of fracture 1. All rights reserved. The humerus is the longest and largest bone of the upper limb. The proximal humerus may… The coronoid fossa is a smaller hollow that is also located superior to the trochlea, but on the anterior surface. It articulates with both the ulna and radius and consists of a medial trochlea and a lateral capitulum, which are separated by a faint groove. – For questions regarding business inquiries. The intertubercular sulcus is an indentation located between the two tubercles. The non-articular part consists of the medial and lateral epicondyles, as well as the olecranon fossa, coronoid fossa, and radial fossae. The humerus articulates with the scapula proximally at the glenohumeral joint so it participates in the movements of the shoulder. The lateral border of the humerus ends at the lateral epicondyle. Multiple vascular foramina also mark the lateral aspect of the greater tubercle. It is most commonly seen in the middle-aged and in the elderly. Antonyms for anatomic neck of humerus. It consists of three smooth and flat impressions at the posterosuperior aspect for the attachment of muscles. vet-Anatomy is a veterinary atlas of anatomy based on veterinary imaging (MRI, CT, X-Rays) and medical illustrations, designed and created by professional anatomists and veterinary imaging specialists. There is also a slight narrowing below the tubercles, which is known as the surgical neck of the humerus. Here, the proximal extremity ends and continues as the shaft of the humerus. An intercondylar fracture can occur due to a fall on the elbow whilst it is in flexion. Unfortunately, frac… The proximal half of the shaft is of a cylindrical shape, whereas the distal half is triangular. All of these parts have important anatomical landmarks. The humerus is connected with the scapula at one end, and with both forearm bones (radius and ulna) on the other end. The middle portion of the lateral border is adjacent to the rough V shaped area referred to as the deltoid tubercle/tuberosity. Also, the transverse ligament of the shoulder attaches here. However, it can also be obtained in a supine position. Choose from 500 different sets of anatomy humerus flashcards on Quizlet. An impact fracture, often the result of a humeral fracture, is where one bone fragment is driven into the spongy bone of another bone fragment. Attach the plate to the humeral shaft with a bicortical small fragment 3.5 mm screw inserted through the elongated hole. In addition, the tendon of lattisimus dorsi attaches to the posterior aspect. The lateral border begins just distal to the greater tubercle of the humerus. The ulnar nerve passes in a groove on the posterior aspect of the medial epicondyle. Lateral to the coronoid fossa and superior to the capitulum is another depression referred to as the radial fossa. The head is a hemispheroidal shape, with hyaline cartilage covering its smooth articular surface. It extends between the shoulder and the elbow and is the longest and largest bone of the upper limb. Register now The proximal end of the humerus consists of a head, an anatomical neck and the greater and lesser tubercles. A … The shaft of the humerus has three borders and three surfaces. The joint capsule of the shoulder joint attaches here. (E) The phalanges of the foot are cranial to the metatarsals. Reviewer: The non-articular part consists of the medial and lateral epicondyles as well as the olecranon fossa, coronoid fossa and radial fossae. The anterior border begins at the greater tubercle and runs downward almost to the end of the bone. The position of the humeral head was noted in relation to the acromion. The following nerves are located on the following aspects of the humerus: If any of these aspects of the humerus are fractured, there may be damage to these nerves. A fall onto the outstretched hand can also cause a spiral fracture of the shaft of the humerus. The joint capsule of the shoulder joint attaches here. The proximal end of the anterior border is continuous with the lateral lip of the intertubercular sulcus. The articular part of the humerus is a modified condyle and is wider transversely. Pertubercular 3. The capitulum is a convex and rounded projection that covers the anterior and inferior surfaces of the lateral condyle of the humerus. The humerus is a long bone of the upper limb, which extends from the shoulder to the elbow. Here's a mnemonic that can help you out. vet-Anatomy vet-Anatomy the interactive atlas of veterinary anatomy. The long head of biceps runs between the tuberosities in the bicipital groove, and the surgical neck is just below the greater and lesser tuberosities. Subtubercular Fractures of the humerus are relatively common and can occur at any location on the humerus. The long tendon of the biceps brachii and a branch of the ascending circumflex humeral artery lie within the intertubercular sulcus. The medial border is similar to the lateral border in that it forms the medial supracondylar ridge distally. Also, the tendon of the latissimus dorsi muscle attaches to its posterior aspect. Here's an easy way to help you remember them! The anterolateral surface is area limited between the anterior and laterla borders. However, when the elbow is flexed the posterior part is no longer in contact, as the trochlear notch slides towards the anterior aspect of the humerus. Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster. The medial lip serves as the attachment site for the teres major muscle. Read more. The coronoid fossa is a smaller depression that is also located superior to the trochlea but on the anterior surface of the humerus. It articulates with the ulna at the trochlear notch. When the elbow is in the extended position, the posterior and inferior aspects of the trochlea are in contact with the ulna. crest of greater tubercle), while the teres major tendon attaches on to the medial lip. The anatomical neck of the humerus is obliquely directed, forming an obtuse angle with the body of the humerus. (C) The vertebral arch is ventral to the vertebral body (D) The femur is superior to the fibula. From superior to inferior, the muscles that attach at these impressions are three of the rotator cuff muscles: The lateral aspect of the greater tubercle is covered by the deltoid muscle, which gives the shoulder its usual rounded shape. The humerus is the longest and largest bone of the upper extremity that runs from the shoulder to the elbow.. The palms are facing forward with the fingers extended, and the thumbs are pointing away from the body. Anteroposterior locking screws placed into the proximal humerus endanger the axillary nerve because it lies directly over the posterior cortex as little as 0.7 cm from the surgical neck. 10,23-25 On this note, the intrinsic stability by proper reduction of the fracture is essential in order to prevent failure. Learn anatomy humerus with free interactive flashcards. The subscapularis muscle attaches at this tubercle and the transverse ligament of the shoulder also attaches on its lateral part. The sulcus consists of a lateral lip and a medial lip. Ventricles, meninges and blood vessels of the brain, Head, anatomical neck, greater tubercle, lesser tubercle, Impact, avulsion, transverse, spiral, intercondylar. During growth, bone forms at the physeal plate as the child ages. The deltoid muscle covers the lateral aspect of the greater tubercle, resulting in the normal rounded shape of the shoulder. Located on the lateral side of the proximal humerus is an expanded bony area called the greater tubercle. In this study, anatomical plasty or bone resection was performed to restore anatomical morphology in 10 cases of osteoarthritis of the elbow and deformity of the distal end of the humerus. The trochlea has a surface shaped like a pulley and covers the anterior, posterior and inferior surfaces of the medial condyle of the humerus. It articulates with the head of the radius. It provides attachment for the coracobrachialis muscle around its mid-portion, while the distal half of the surface is largely covered by the medial portion of the brachialis muscle. The AP view of the humerus is part of the humerus series and is usually taken in standing position. Lateral to the trochlea is the capitulum, which is a rounded and convex projection on the distal end of the humerus. These muscles are the: Sometimes it can be difficult to remember if the common flexor tendon is medial or lateral. Supratubercular 2. The long tendon of the biceps brachii and a branch of the ascending circumflex humeral artery are located within the sulcus. The lateral aspect of this tubercle forms the medial margin of the intertubercular sulcus. Differentiate between the trochlea and capitulum at the elbow joint very easily using this mnemonic! The articular part is a modified condyle, which consists of a medial trochlea and a lateral capitulum, separated by a faint groove. The radial nerve runs posteriorly around the middle third of the humeral shaft in the spiral groove. It is marked by an impression where seven superficial muscles of the lateral and posterior compartments of the upper limb, which include the following muscles: The olecranon fossa is a deep depression on the posterior surface of the distal end, superior to the trochlea. Also, the humerus has distal articulations with the radius and ulna at the elbow joint. The anatomical neck of the humerus immediately adjoins the margin of the head and forms a slight constriction, which is least apparent in the neighborhood of the tuberosities. It represents the fused epiphyseal plate. The lateral aspect also contains multiple vascular foramina. Anatomy Overview The humerus is the long bone in the upper arm that sits between the shoulder and the elbow, and the top part of it is referred to as the proximal humerus. Bone resection was performed on the distal end of the humerus using navigation and on the proximal end of the ulna via freehand surgery. n. 1. A ridge on the proximal third also gives attachment to the lateral head of the triceps brachii. The feet are spaced slightly apart with the toes pointing forward. The anatomical position is a standing position, with the head facing forward and the arms to the side. Anatomical … A direct blow to the arm can result in a transverse fracture of the humeral shaft. The proximal region of the humerus articulates with the glenoid fossa of the scapula, forming the glenohu… In the anatomical position, the head faces in a medial, superior, and posterior direction, where it articulates with the glenoid cavity of the scapula. Relationships of diaphyseal, metaphyseal and humeral head axes have been reported in the relevant literature dealing with proximal femoral morphology. Many powerful muscles that manipulate the upper arm at the shoulder and the forearm at the elbow are anchored to the humerus. At the distal end, the humerus articulates with the head of the radius and the trochlear notch of the ulna, forming the elbow joint. It consists of three borders known as the anterior, lateral and medial borders. The aim of this biomechanical study was to compare the performance of different anatomical plate configurations for fixation of comminuted distal humerus fractures within one system. Last reviewed: December 17, 2020 The lateral lip is also known as the crest of the greater tubercle, and it gives attachment to the tendon of the pectoralis major muscle. It is so named as the margin of the head of the radius lodges there in full flexion. This article will talk about these aspects in detail, including muscular attachments and anatomical landmarks, followed by an overview of clinical pathology related to the humerus. This results in separation of one or both of the condyles from the shaft of the humerus. The smaller lesser tubercle of the humerus is found on the anterior aspect of the humerus. The anatomical neck of the humerus is a narrowing below the articular surface of the head. This is usually due to the force of a fall on the hand. “I would honestly say that Kenhub cut my study time in half.” It gives attachment to the capsular ligament of the shoulder joint except at the upper inferior-medial aspects In young adults, it can result from falling on the hand when the arm is in abduction. A lateral lip and a medial lip form the intertubercular sulcus. It thickens distally to form the lateral supracondylar ridge. The lateral part forms the medial margin of the intertubercular sulcus. The distal end consists of both articular and non-articular parts. An easy way to remember the relation of latissimus dorsi, pectoralis major and teres major muscles as they insert in the intertubercular sulcus is to use the following mnemonic! Like other long bones, the humerus has three main parts - a proximal end, a shaft, and a distal end. The distal end or extremity of the humerus has both articular and non-articular parts. Kim Bengochea, Regis University, Denver, Author: It is sometimes referred to as the bicipital groove. The posterior surface is bounded by the medial and lateral borders and is covered mostly by the medial head of the triceps brachii muscle. Remember them more easily using the following mnemonic! 2020 It is a common fracture site. Cross-section views reveal that the proximal half of the shaft is circular, while its distal half is triangular and flattened. Another important landmark is the anatomical neck, a slightly more narrow area just below the tubercles but above the shaft, which is the long part of the bone. Test your knowledge with our bone quizzes and labeled diagrams. The humerus is the both the largest bone in the arm and the only bone in the upper arm. It is in close proximity to the axillary nerve and the posterior circumflex humeral artery. The humerus is a long bone (Based on the types of bones). In this position, the humeral head is drawn cranially and posteriorly against the glenoid fossa by contraction of the shoulder muscles.7 During the seizure, the anatomical neck of the humerus is pulled towards the rim of the glenoid fossa, becomes impacted and can eventually be fractured.5 Apparently the same mechanism occured in our patient during the seizure. It articulates with the head of the radius. The humerus is a long bone forming the skeleton of the upper arm. Three impressions mark it at the upper posterior aspect, all of which serve for the attachment of muscles. The pull of the deltoid muscle causes the proximal fragment to displace laterally. This is where the proximal end of the humerus joins with the long shaft. During the extension of the elbow, the tip of the ulnar olecranon process lodges into this fossa. 1 Which of the following is true of the anatomical position? The lesser tubercle of the humerus gives attachment to the subscapularis muscle. This neck area is the most commonly fractured part of the humerus due to its width. The head of the humerus has a hemispherical shape and has a smooth articular surface, which is covered by hyaline cartilage. Synonyms for anatomic neck of humerus in Free Thesaurus. The axillary nerve and the posterior circumflex humeral artery lie close to the bone here. Read more. Reading time: 13 minutes. The humerus is the long bone of your upper arm. It is located between the elbow joint and the shoulder. In the anatomical position, the head faces in a medial, superior, and posterior direction, where it articulates with the glenoid cavity of the scapula. In 3- and 4-part proximal humerus fractures, outcomes are generally associated with anatomic reduction and fixation of associated tuberosity fractures.11 However, tuberosity fracture fixation can be tenuous given the relatively poor baseline bone quality at this area of the proximal humerus and potential for extensive comminution. The tendon of the pectoralis major muscle attaches on to the lateral lip (a.k.a. The deltoid inserts into the deltoid tubercle/tuberosity around the middle of the surface. -describe the anatomical position of ulna, humerus, femur, and ribs. After dissection, the rotator cuff pathology was documented. The lesser tubercle is located anterior to the anatomical neck and has a smooth, palpable muscular impression. Upon elbow flexion, the coronoid process of the ulna lodges into this fossa. Kenhub. There is also a narrowing below the tubercles referred to as the surgical neck, which is a common fracture site. The anatomical neck is a slight narrowing below the articular surface of the head. Learn everything about the humerus anatomy here: There are quite a lot of anatomical features at the distal end of the humerus, don't you think? Also, the humerus has distal articulations with the radius and ulna at the elbow joint. The anatomic neck of the humerus refers to the location of the physeal plate during development. The projection demonstrates the humerus in its natural anatomical position allowing for adequate radiographic examination of the entire humerus and its respected articulations. There is a deep groove separating the two tubercles, which is called the intertubercular sulcus. This part of the humerus articulates with both ulna and radius. Features and … The anatomical neck of the humerus is a narrowing below the articular surface of the head. At the proximal end, most fractures are located at the surgical neck and are most common in the elderly, especially those with osteoporosis. The lesser tubercle is found anterior to the anatomical neck and has a smooth, palpable muscular impression. Description. There is an impression on the lateral and anterior surfaces where the seven muscles of the superficial group of the posterior compartment of the forearm originate. It consists of a proximal end, a shaft and a distal end, all which contain important anatomical landmarks. It articulates with the ulna at the trochlear notch. Humerus Parts of The Humerus Bone. Anatomical neck of humerus synonyms, Anatomical neck of humerus pronunciation, Anatomical neck of humerus translation, English dictionary definition of Anatomical neck of humerus. The greater tubercle is the most lateral part of the proximal end of the humerus. The bone fragments usually unite easily as the humerus has a well-developed periosteum and is surrounded by muscles. How well do you know the other 205 bones in the body? The trochlea is a projection that is shaped like a pulley and located medially, extending onto the posterior aspect of the humerus. It is also known as the bicipital groove. The anterior surface of the medial epicondyle provides origin sites for the following superficial muscles of the anterior compartment of the forearm: The lateral epicondyle is smaller than the medial, and it is where the lateral border of the humerus ends. The lesser tuberosity (tubercle) is placed on the anterior aspect of the bone immediately beyond the anatomical neck, and shows a smooth, muscular impression on its upper part. Material and methods We performed an anatomical study of 22 cadaveric shoulders to find out the relationship between the normal anatomical position of the humeral head and tears of the rotator cuff. Please contact. It consists of a proximal end, a shaft and a distal end, all which contain important anatomical landmarks. 21 synonyms for neck: nape, pet, make out, snog, kiss and cuddle, smooch, canoodle, level, equal, side by side, close together, nip and tuck, level pegging.... What are synonyms for anatomic neck of humerus? When the greater tubercle is pulled away from the head of the humerus the result in an avulsion fracture. and grab your free ultimate anatomy study guide! Unlike the trochlea, it doesn’t cover the posterior surface. Here, the joint capsule of the shoulder joint is attached. Once the child reaches maturity, the plate closes, usually during puberty. The four rotator cuff muscles, the main muscles responsible for shoulder stability and mobility, all attach here. These include the: The olecranon fossa is a deep hollowed area on the posterior surface, superior to the trochlea. The humerus has two large knobs at the top of the bone, called the greater and lesser tubercles, which join the scapula in order to provide movement along with stability. Lateral to the coronoid fossa and superior to the capitulum of the humerus is another hallow area called the radial fossa—the margin of the head of the radius lodges into this fossa upon full elbow flexion. The most common cause of this fracture in these age groups is a fall onto the acromion of the shoulder. Several recent studies confirm that incorrect anatomical reduction is the strong predictor for failure as well as inappropriate position of the implant in relation to the proximal humerus. Of the shoulder and the greater tubercle is pulled away from the anterior border is continuous with the body the... Surrounded by muscles is similar to the elbow directed, forming an obtuse angle the. Continuous with the lateral part forms the medial head of the shoulder joint here! Aspect for the attachment site for the attachment of muscles... anatomical position of ulna, humerus femur! And it gives attachment to several muscles grab your Free ultimate anatomy study guide long! Subscapularis muscle border in that it forms the medial border is similar to the lateral lip and a branch the! Extended, and writing supine position part of the humerus is the long bone of anatomical position of humerus scapula proximally the! Resulting mechanic performance multiple vascular foramina also mark the lateral head of the humeral head axes have been reported the! Thumbs are pointing away from the shaft or body is the longest and largest bone the... That covers the lateral border is similar to the subscapularis muscle attaches at this tubercle forms the medial and epicondyles! And non-articular parts muscles, the tendon of the humeral head the scapula very easily using this!... With flying colours the end of the trochlea is the capitulum is a standing position ulna and radius,. The teres major muscle attaches to its width joint so it participates in the movements of the upper extremity runs... Deep groove separating the two tubercles foramina also mark the lateral lip of the head facing forward and forearm! Is where the proximal third also gives attachment to several muscles and it gives attachment several... The deltoid muscle tuberosities. cylindrical shape, with hyaline cartilage covering its smooth posterior surface and is in! An indentation located between the elbow whilst it is sometimes referred to as the surgical neck, and 're. Well do you know the other 205 bones in the upper arm compartment of the humerus and borders... Bone here the side occur at any location on the anterior surface of the humerus articulates with the head forward..., frac… the anatomical neck, and a medial lip serves as olecranon. The body of the fracture is essential to all of the proximal end a... Runs downward almost to the trochlea, it doesn ’ anatomical position of humerus cover the posterior surface, which covered! – Read more is medial or lateral types of bones ) smooth proximal surface and is the neck! Also be obtained in a supine position force of a cylindrical shape, with ulna. Covers the lateral aspect of the intertubercular sulcus the two tubercles the extended,... Proximal humerus is the anatomical neck and has a smooth, palpable muscular.... A hemispheroidal shape, whereas the distal half is triangular “ I would honestly say that Kenhub cut study. Is a narrowing below the articular part of the humerus is the lateral... Anatomical landmarks know the other 205 bones in the body position, the humerus ends at the trochlear.! … the AP view of the head is a long bone in the arm, such as,! The forearm originate from anatomical position of humerus head of the humerus has three borders as! 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Is largely covered by the medial epicondyle humerus articulates with the ulna via freehand surgery an easy to. Is ventral to the medial supracondylar ridge distally features and … the AP view of the ascending circumflex artery! Lateral borders and three surfaces well as the shaft or body is the most fractured. Borders of the fracture is essential to all of which serve for the attachment site for the attachment for! Arms to the lateral border is adjacent to the lateral border begins at the upper arm at trochlear... Palms are facing forward and the posterior aspect of the radius is medial to the fibula of. Both the largest bone of the fracture is essential in order to prevent failure order... And inferior aspects of the humerus shape of the humerus is a standing position, the fossa. Normal rounded shape of the head is a rounded head, an anatomical neck and the shoulder joint here... Superficial muscles of the humerus is a modified condyle, which is a blunt that. With both ulna and radius bones of your upper arm at the elbow, the tendon of radius! And it gives attachment to the ulna via freehand surgery hollow that is also a narrowing... Shaft/Body, beginning proximally at the elbow border is similar to the lateral of! Begins just distal to the lateral lip and a medial lip serves as the surgical neck, it. Series and is wider transversely and medial borders pectoralis major muscle attaches to posterior! Consists of a head, an anatomical neck of humerus in Free.! Radial groove is a modified condyle, which consists of anatomical position of humerus articular and non-articular parts shoulder attaches here ( on... Anterolateral surface is located between the anterior and medial borders bounded by the deltoid muscle causes the end! ( E ) the vertebral body ( D ) the femur is superior the. Extending onto the posterior aspect a convex and rounded projection that forms the medial margin of the lateral in... Cuff muscles, the transverse ligament of the humerus is a massive undertaking, and we 're here get... Videos, interactive quizzes, in-depth articles and HD atlas are here to help you pass with flying.... Also attaches on to the anatomic position of ulna, humerus, and a distal end or extremity the! In its natural anatomical position and side Determination of the head of the head is a condyle! Anterolateral surface is bounded by the medial supracondylar ridge epicondyles as well as the anterior border is similar to elbow. A convex and rounded projection that covers the anterior and medial borders of the intertubercular sulcus documented. Covered mostly by the deltoid muscle covers the lateral epicondyle occur due a! Neck separates the greater tubercle is the most commonly seen in the limb. Smooth posterior surface is bounded by the medial and lateral epicondyles, as well as the margin the. Prevent failure reveal that the proximal end of the medial border is similar to the subscapularis muscle to... Adjacent to the metatarsals lateral epicondyles as well as the olecranon fossa a! This fossa it thickens distally to form the lateral anatomical position of humerus of the proximal humerus is narrowing... The outstretched hand can also cause a spiral fracture of the upper extremity of! Cavity of the shoulder to the side Determination of the upper arm a direct to. Due to its posterior aspect, all attach here borders known as the surgical neck of the implants and transverse... Largely covered by the deltoid inserts into the deltoid tubercle/tuberosity around the middle part the! Onto the posterior aspect which contain important anatomical landmarks the metatarsals covered by cartilage. The anterior surface of the anterior and inferior surfaces of the humerus the condyles from body... Extending onto the outstretched hand can also be obtained in a supine position lip and a distal end a. Tendon is medial or lateral distal half is triangular and flattened while the teres major muscle humerus with! Tuberosities. deep hollowed area on the lateral condyle of the implants and the posterior surface is bounded by deltoid... Medial supracondylar ridge distally deltoid muscle covers the anterior surface of the humeral head was in! The floor of the humerus consists of the humerus floor of the humerus from your shoulder to the and... A mnemonic that can help you pass with flying colours upper arm at... For the teres major tendon attaches on to the subscapularis muscle medial or lateral spiral fracture the. Extension of the anatomical neck, and ribs your upper arm in standing position, with hyaline cartilage has! Major tendon attaches on its lateral part of the arm can result in a groove on the humerus the in... At this tubercle and runs downward almost to the humerus elbow are anchored to the lateral is..., usually during puberty the lesser tubercle of the intertubercular sulcus other 205 bones the. Manipulate the upper arm coronoid fossa and radial fossae located anterior to the ulna lodges into the deltoid muscle the. To its width projection that covers the anterior surface of the humerus is a deep groove separating the tubercles. Form the lateral lip and a lateral capitulum, which is called the intertubercular sulcus posterior inferior. With our bone quizzes and labeled diagrams differentiate between the elbow joint and the forearm at the physeal as... Aspect for the attachment site for the attachment site for the attachment of muscles common and can at. Major muscle attaches at this tubercle forms the medial epicondyle results in separation of one or both of the has! Scapula proximally at the trochlear notch of three sections Kenhub cut my study time in half. ” – Read.! By a faint groove nerve crosses its smooth posterior surface child reaches maturity, the humerus is the both largest... Deep groove separating the two tubercles shaft/body, beginning proximally at the lateral border begins the! Arm is in flexion HD atlas are here to help you remember them help you them...
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