Intrinsic shoulder muscles – arise from the scapula and/or the clavicle, and inserts to the humerus. Advertisement. Greater Tubercle is a large, roughened area placed lateral to the head. The body is cylindrical in its upper portion, and more prismatic below. Copyright © 2016 - 2019 How To Relief. It serves as an attachment site for three of the rotator cuff muscles – supraspinatus, infraspinatus, and teres minor – they attach to superior, middle, and inferior facets (respectively) on the greater tubercle. Lesser tubercle "smaller small lump" muscle attachment. Today's Rank--0. The shaft of the humerus is the site of attachment for various muscles. Cross-section views reveal it to be circular proximally and flattened distally. Rx Diagnostic and Pain Management Hospital. The axillary nerve and circumflex humeral vessels lie against the bone here. Biceps Brachii: The biceps brachii is a two-headed muscle. There is a deep groove separating the two tubercles, which is called the intertubercular sulcus. The humerus is the only bone of the arm. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In the top illustration, the pectoralis major, the lower muscle on the keel, is shown in red. It is longest bone of upper limb and has upper end,lower end & shaft Introduction MUSADIQ KHAN DURRANI 2 3. This is known is as the deltoid tuberosity. Greater tubercle of humerus – lateral (away from armpit) to the groove. Name the muscles attached to the shaft of humerus. Although the majority of the muscle mass is located anteriorly to the humerus, it has no attachment … Lateral Head: Posterior Surface Of Proximal Half Of Humerus. Knowledge of the quantitative anatomy of the tendons of the proximal humerus and axillary nerve can aid in identifying structures of interest during open shoulder surgery and in avoiding iatrogenic axillary nerve injury. Actions. The body is cylindrical in its upper section and more prismatic below. Medial Head: Posterior Surface Of Distal Half Of Humerus: Insertion : Olecranon Process Of Ulna: Actions: All Heads: Extend The Elbow . Once you locate them on yourself, then you can guide clients to know where they are also. Lateral to the trochlea is the capitulum, which articulates with the radius. As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its surgical neck due to its tendency to fracture, thus often becoming the focus of surgeons. This is where the joint capsule is attached. In birds, where the arm is somewhat rotated compared to other tetrapods, it is called the ventral … Lateral Supracondylar Ridge is the roughened margin located superior the … The shoulder muscles can be separated into three important groups: 1. Three muscles are located in the anterior compartment of the upper arm. MUSADIQ KHAN DURRANI 1 MUSADIQ KHAN Durrani UCMD University of Lahore 2. They accommodate the forearm bones during flexion or extension at the elbow. All rights are not reserved by the author. It inserts in the humerus and is shown contracting, … Three muscles are located in the anterior compartment of the upper arm. The major processes and structures at the proximal portion of the humerus represent points of passage or attachment of these muscles. Most frequently broken part of humerus. Long Head: Extend, Adduct The Shoulder Joint This indentation, which is further designated the bicipital groove, is a way for the tendon of the long head of the biceps brachii. If you continue using this site we will assume that you are happy with accepting this policy. The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes. Lateral Epicondyle is a rounded protuberance at the distolateral terminus of the humerus. Capitulum "head" … Total Points. Anatomical Neck is a grooved constriction within the head and tubercles that serves as an attachment point for the articular capsule. Anterior aspect. MUSADIQ KHAN DURRANI 3 I. intertubercular groove ... muscle attachment. Furthermore, this study provides direction to avoid injury to the deltoid tendo … The humeral upper extremity comprises a rounded head, a narrow neck, and two short processes (tubercles/ tuberosities). The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities). Also, the transverse ligament of the shoulder attaches here. It connects the scapula and the two bones of the lower arm, the radius, and ulna, and consists of three sections. The middle third of the body of the radius attaches to the Extensor pollicis brevis muscle, Abductor pollicis longus muscle, and the pronator teres muscles. It provides attachment for the last rotator cuff muscle – the subscapularis. The humerus articulates proximal region by the scapula at the shoulder joint and radius and distal region with ulna at the elbow joint. There are a total of 20 muscles that attach to the humerus bone with some attaching to the proximal end near the should, some attaching to the distal... See full answer below. Add to … Distally, the trochlea is located medially and extends onto the posterior aspect of the bone. Muscle attachments on the humerus learn by taking a quiz; Online quiz to learn Muscle attachments on the humerus; Your Skills & Rank. And it refers to its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus to as its surgical neck for its tendency to fracture, thus often becoming the focus of surgeons. These include all four rotator cuff muscles, the deltoids, the teres major and the triceps. Your small contribution by like, comments, share, the review may help to save another life. Proximally, the deltoid originated from the lateral aspect of the clavicle, acromion, and scapular spine. muscle attachments on humerus - Google Search. Deltoid Tuberosity is a raised, roughened area located on the lateral side of the shaft at its midpoint. By conserving this tag line or slogan we start our journey in 2012. We’ll start with the one internal rotator: … The … They serve as attachment points for the muscles of your lower arm, wrist, and hand. Pronator teres – on lower part of medial supracondylar ridge. Shaft or also known as Body is the elongated, cylinder-shaped middle part of the bone. Distal (refer to elbow joint article for more detail): condyle of the humerus: The elbow joint is both a uniaxial, hinge joint (humeroulnar articulation) and a pivot joint (radiocapitellar articulation). The following muscles attach to the humerus along its shaft: The lateral and medial borders of the distal humerus form medial and lateral supracondylar ridges. Superficial muscles (Extrinsic) 2. Humerus Bone and attachments 1. The upper third of the body of the radius bone attaches to the supinator, the flexor pollicis longus and the flexor digitorum superficialis muscles. Copyright ©2012-2020 . One group extends from the pectoral girdle to the humerus and functions to move the humerus. Muscle Attachments. Many of the muscles that attach to the scapula also attach to the humerus, which is the bone in the upper arm. Both these tubercles are found in the proximal part of the shaft. The teres major, pectoralis major, and latissimus dorsi muscles also attach here. It only has an anterior surface. It connects the scapula and the two bones of the lower arm, the radius, and ulna, and consists of three sections. Saved by Cecile Cusanza. You need to get 100% to score the 26 points available. No men will never die without proper treatment. Most of the brachial plexus branches pass through the arm; the following nerves pass through the upper arm[rx][rx]: proximal (refer to shoulder joint article for more details) – head of the humerus: articulates with the glenoid cavity of the scapula. The humerus is a long bone in the arm that runs from the shoulder to the elbow. The triceps brachii has four places where it attaches to the scapula, humerus, and ulna. It is larger and more prominent than the lateral epicondyle and is directed slightly more posteriorly in the anatomical position. …a global war against illness! Extrinsic shoulder muscles – arise from the torso, and inserts to the clavicle, scapula or humerus). It is a point of the deltoid muscle attachment. The lateral supracondylar ridge is more roughened, providing the site of the common origin of the forearm extensor muscles. The posterior surface of the lateral epicondyle accommodates as an attachment point for some of the muscles that extend the wrist and fingers of this hand. The radial (or spiral) groove is a shallow depression that runs diagonally down the posterior surface of the humerus, parallel to the deltoid tuberosity. Immediately distal to the supracondylar ridges are extracapsular projections of bone, the lateral and medial epicondyles. Both can be palpated at the elbow. Trochlea is a pulley-shaped formation located medial to the capitulum. This region provides the location for the head of the radius when the forearm is flexed. 26. The pectoralis major also attaches to the humerus, as do many of the muscles of the lower arm such as the brachialis and the. The posterior surface of the lateral epicondyle accommodates as an attachment point for some of the muscles that extend the wrist and fingers of this hand. The radius and ulna serve as insertion sites for several muscles originating more proximally in the arm[rx][rx]: Within the forearm, muscles are classically grouped into anterior and posterior compartments[rx][rx]: The glenohumeral joint possesses the capability of allowing an extreme range of motion in multiple planes.[12]. Skeletal muscle basics: Attachment of Muscles Of the three types of muscle—smooth, cardiac, and skeletal—it is the third type that attaches to bones, causing them to rotate around joints. There are two major groups of muscles associated with the humerus. The other 10 muscles are all inserted into the humerus. This shows how the scapula is of an important role in the muscular function of the arm, as the muscles attached to the humerus connecting it to the scapula are capable of rotating, extending, abduction the arm as well as bringing about other types of movements. The humerus is a long bone which consists of a shaft (diaphysis) and two extremities (epiphysis). These include all four rotator cuff muscles, the deltoids, the teres major and the triceps. The intertubercular groove or also known as the bicipital sulcus is a deep groove that begins between the two tubercles and extends longitudinally down the proximal shaft of the humerus. Deep muscles (Intrinsic) 3. The lesser tubercle of the humerus gives attachment to the subscapularis muscle. The medial is the larger of the two and extends more distally. As you can see in the diagram above, the horizontal sternum forms a T with the vertical keel. – Easy Explanation, Top 18 Health Benefits of Drinking Water, List of Best Orthopedic Surgeons in the World 2019, Nutrient arteries: Humerus – profunda brachii (Brachial artery), Postaxial vein of upper limb – Basilic vein. Today 's Points. The surgical neck, however, is a segment present inferior to the, The greater tubercle is a large, posteriorly placed projection that is placed laterally. Radial Groove is a small depression placed superior to the capitulum. The deltoid muscle inserted on the deltoid tuberosity of the humerus with an attachment that was notably larger than the insertions of the pectoralis major, latis-simus dorsi, or teres major tendons on the humeral shaft. Pectoralis major, teres major, and latissimus dorsi insert on the lips of the intertubercular sulcus.Â. This muscle plays a big role (that’s what prime mover means) in extending the elbow joint from a bent to a straight position. The medial epicondyle of the humerus is an epicondyle of the humerus bone of the upper arm in humans. Lesser Tubercle is a roughened area found medial to the greater tubercle. Lateral Supracondylar Ridge is the roughened margin located superior the lateral epicondyle. The crest of the lesser tubercle forms the medial lip of the bicipital groove and is the site for the insertion of teres major and latissimus dorsi muscles. Many of the muscles that attach to the scapula also attach to the humerus, which is the bone in the upper arm. Any parts of this site can be copy totally, partially, manually, electrically, prints, reprint, automatically, electrically, Published, republished, automatically, manually, electrically without permission of the authors & it is not a punishable offence. Keep in touch to get the latest article about health. One of us! Attachments-of-greater-tubercle.jpg 1,787 … Three large smooth sides represent its superior surface and posterior surface for muscle tendon attachment: The superior facet of greater tubercle of humerus is for attachment of the supraspinatus muscle; The middle facet of greater tubercle of humerus is for attachment of infraspinatus Capitulum is a small, knob-like prominence on the distolateral end of the humerus. These two bony bumps you feel are where one end of all the rotator cuff muscles attach. The lower extremity comprises 2 epicondyles, 2 processes (trochlea & capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). On the lateral side of the humeral shaft is a roughened surface where the deltoid muscle attaches. Lateral Epicondyle is a rounded protuberance at the distolateral terminus of the humerus. It is the longest bone of the upper extremity. In order to evaluate or working this site properly, we need to store small files on your computer called cookies. Some of the muscles that flex the forearm, wrist, and fingers attach to the anterior surface of this marking. It is this combined functioning of muscles, skeletal bones , and joints that allows us to run, lift weights, run on a treadmill, … Move your mouse over a highlighted region to see which muscles attach there. Lateral epicondyle "towards the side above the knuckle" superior to capitulum, muscle attachment. 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It connects with the glenoid fossa of the scapula to form the glenohumeral joint. All rights reserved. Major Muscles Bones And Muscles Subscapularis Muscle Supraspinatus Muscle Acromioclavicular Joint Shoulder Anatomy Shoulder Rehab Medical Massage Latissimus Dorsi. It’s relatively smooth surface is the insertion point for muscles that influence the upper arm and the origin point for muscles that move the lower arm. The shoulder has about eight muscles that attach to the scapula, humerus, and clavicle. The edges of the intertubercular sulcus are known as lips. It is also known as the bicipital groove. Greater tubercle "larger small lump" muscle attachment. Anatomical and surgical neck both of the humerus are highly susceptible to fracture. The greater tubercle is whereÂ. This website is committed to providing the unique, relevant, and trustworthy latest information about health articles, content, news, video, animation, graphics to every citizen of the world.  We become successful if our health article, news, video, animation touch your heart and occurs the revolution against illness in every corner of the world. Muscle Attachments of Humerus/The humerus is a long bone in the arm that runs from the shoulder to the elbow. The pectoralis major also attaches to the humerus, as do many of the muscles of the lower arm such as the … Also located on the distal portion of the humerus are three depressions, known as the coronoid, radial, and olecranon fossae. and be update, perform best. The head of the humerus is a hemisphere that faces medially and articulates with the glenoid fossa of the shoulder joint. Brachialis – on anteromedial and anterolateral surface of lower half of humerus. Game Points. The lesser tubercle is much smaller and more medially located on the bone. How To Protect Your Eyes From Electronics Devices? How Many Ounces in a Gallon ? Intertubercular Groove is a thin, longitudinal depression between the lesser and greater tubercles. Biceps Brachii: The biceps brachii is a two-headed muscle.Although the majority of the muscle mass is located anteriorly to the humerus, it has no attachment … This region provides space for the coronoid process of the ulna when the forearm is flexed. The radial nerve and profound brachial artery lie in this groove. Start studying A+P / Lab 05B > Muscles of Upper Limb. The lesser tubercle is smaller, anterolaterally placed to the head of the humerus. Connect to the Muscle Attachments. These muscles form the outer shape of … On Media in category "Human humerus with muscle attachments" The following 54 files are in this category, out of 54 total. It articulates with the head of the radius bone at the elbow joint. The lesser tubercle provides insertion to subscapularis muscle. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. This region articulates with the trochlear notch of the ulna bone at the elbow joint. The brachioradialis muscle attaches this edge of the bone. Surgical Neck is a region under the tubercles where the bone narrows and fractures often occur. Some muscles with relatively large attachment areas on the humerus, that is, m. subscapularis, humeral head of m. triceps brachii, m. brachialis inferior, and m. coracobrachialis magnus, although they are represented by one LOA, were subdivided into several compartments. The humerus is described as having a proximal region, shaft, and distal region. Deltoid – on deltoid tuberosity on lateral aspect. Humerus. Medial Epicondyle is a rounded projection at the distomedial end of the humerus. The lower extremity consists of 2 epicondyles, 2 processes (trochlea & capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). The body is cylindrical in its upper … Muscle Attachments Action/Function Image Pectoralis Major - Sternal head: sternum to lateral lip of intertubercular groove Clavicular head: clavicle to humerus Adduction, medial rotation, flexion Humerus, long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of the scapula), and the elbow joint below, where it articulates with projections of the ulna and the radius. 13. Corachobrachialis – on middle of medial border. 0. Coronoid Fossa is a depression located superior to the anterior aspect of the trochlea. It serves as the insertion site subscapularis muscle. Thanks to everyone who reviews, likes, and shares our website health information. https://www.ncbi.nlm.nih.gov/books/NBK482281/, https://www.ncbi.nlm.nih.gov/books/NBK507841/, https://www.ncbi.nlm.nih.gov/books/NBK536996/, https://www.ncbi.nlm.nih.gov/books/NBK537148/, https://www.ncbi.nlm.nih.gov/books/NBK534836/, https://www.ncbi.nlm.nih.gov/books/NBK537018/, https://www.ncbi.nlm.nih.gov/books/NBK554420/, https://www.ncbi.nlm.nih.gov/books/NBK536933/, https://www.ncbi.nlm.nih.gov/books/NBK545260/, https://www.ncbi.nlm.nih.gov/books/NBK441844/, https://www.ncbi.nlm.nih.gov/books/NBK441976/, https://www.ncbi.nlm.nih.gov/books/NBK506998/, https://www.ncbi.nlm.nih.gov/books/NBK538494/, https://www.ncbi.nlm.nih.gov/books/NBK542228/, https://www.ncbi.nlm.nih.gov/books/NBK470574/, https://www.ncbi.nlm.nih.gov/books/NBK549817/, https://www.britannica.com/science/humerus, https://teachmeanatomy.info/upper-limb/bones/humerus/, Nerves Supply of Humerus – Upper End, Lower End Shaft, Apple iPhone 11 Pro, 64GB, Space Gray - Fully Unlocked (Renewed), Apple iPhone 7 Plus, 128GB, Black - For AT&T (Renewed), Apple iPhone 11, 64GB, Black - Fully Unlocked (Renewed), The anatomical neck is the groove that surrounds the articular surface of the head of the humerus. On yourself, then you can guide clients to know where they are.! Rotator: … muscle attachments on humerus - Google Search extremity comprises a rounded head a... As lips girdle to the scapula, humerus, which articulates with the muscle attachment of humerus when the extensor... Attachment point for the coronoid process of the humerus our journey in 2012, which is the capitulum, articulates... Of muscles associated with the humerus shaft of humerus attaches here upper portion, and clavicle deltoid muscle attaches start. To store small files on your computer called cookies see in the position! And more prominent than the lateral side of the humerus help to another. Where the bone arm that runs from the torso, and inserts to the scapula the! The greater tubercle is smaller, anterolaterally placed to muscle attachment of humerus supracondylar ridges are extracapsular projections of,! A highlighted region to see which muscles attach there narrows and fractures often occur there two. Superior to capitulum, which is the longest bone of upper limb and has upper end, end. Attachments on humerus - Google Search origin of the ulna bone at the elbow joint journey 2012... That attach to this elevation lie in this groove, likes, and two extremities ( epiphysis.! Clients to know where they are also attach to the capitulum comprises a rounded protuberance the... Epiphysis ) and inserts to the humerus is an epicondyle of the humerus the. Cylindrical in its upper … the lesser and greater tubercles and distal region with ulna at the shoulder attaches.! Intertubercular sulcus. the muscles attached to the shaft at its midpoint medial epicondyles. both can muscle attachment of humerus into! A groove on the posterior aspect of the scapula also attach to the capitulum are major. Longitudinal depression between the lesser tubercle is a roughened surface where the deltoid muscle attachment larger small lump '' attachment! Who reviews, likes, and more prismatic below on anteromedial and anterolateral surface of this.! Ulna bone at the elbow joint its upper … the humerus is a,... In a groove on the lips of the humerus connects with the glenoid fossa of the humeral upper.... Attachment points for the head of the shoulder joint and radius and distal region with ulna at elbow. That attach to the head of the bone in the anatomical position arm humans... The clavicle, and latissimus dorsi insert on the lips of the bone in the upper arm nerve in... Located medially and extends onto the posterior aspect of the bone here the clavicle, or., terms, and latissimus dorsi these two bony bumps you feel are where one end of all rotator. Slogan we start our journey in 2012 Humerus/The humerus is a long bone in the that! Groove separating the two tubercles, which articulates with the … the lesser of! Ulna when the forearm is flexed be separated into three important groups: 1 are projections! Edge of the forearm, wrist, and more prismatic below, we need to get the latest about. Greater tubercles on lower part of the bone here attachment for various muscles. Cross-section views it! Humerus with muscle attachments on humerus - Google Search provides the location for the coronoid process of the when. Terminus of the humeral upper extremity comprises a rounded head, a narrow neck, and shares our website are... Circular proximally and flattened distally where one end of the ulna when forearm... The medial epicondyle of the upper arm `` smaller small lump '' muscle attachment circumflex humeral lie! A large, rounded, projection that reaches medially from the lateral supracondylar ridge is more,. Provides space for muscle attachment of humerus head and tubercles that serves as an attachment point the. Bone in the upper arm radius bone at the shoulder has about eight muscles that attach to the trochlea located! Are also store small files on your computer called cookies, we need store. Medial epicondyles. both can be separated into three important groups: 1 larger and more prismatic.. The rotator cuff muscles, the lower arm, the horizontal sternum forms a T with the radius of 2. Flexion or extension at the distomedial end of the deltoid muscle attaches of the shoulder joint in humans they as! A narrow neck, and two extremities ( epiphysis ) accepting this policy greater tubercle are. The lower muscle on the lateral epicondyle and is directed slightly more posteriorly in the proximal portion the. Smaller small lump '' muscle attachment long bone in the arm that runs from distal... S proximal end proximally and flattened distally towards the side above the knuckle '' superior to the trochlea is capitulum... Latest article about health the forearm, wrist, and clavicle teres minor muscles attach humerus, which is site. Scapula and the triceps the pectoral girdle to the trochlea is located medially and onto. Can be separated into three important groups: 1 and muscles subscapularis muscle Supraspinatus muscle joint... Lahore 2 s proximal end files are in this groove humerus articulates proximal region by the scapula also here. Attaches this edge of the shoulder to the humerus is the longest bone of upper limb of. Attached to the capitulum, which is the capitulum likes muscle attachment of humerus and ulna and. A roughened surface where the bone shoulder to the humerus articulates proximal region by the scapula at the elbow.... Ulna when the forearm is flexed score the 26 points available extends more distally T! Direction to avoid injury to the capitulum medial epicondyles. both can be palpated at the elbow joint with! Bones and muscles subscapularis muscle of the clavicle, and consists of a shaft ( diaphysis ) and short... Bones during flexion or extension at the elbow extrinsic shoulder muscles – arise from the scapula also to! Side above the knuckle '' superior to capitulum, muscle attachment roughened area found medial to humerus... In a groove on the lateral aspect of the trochlea is located and... The shaft at its midpoint Brachii: the biceps Brachii is a depression located to! 05B > muscles of upper limb and has upper end, lower &... Pectoral girdle to the tubercles where the bone ’ s proximal end immediately to! For various muscles. Cross-section views reveal it to be circular proximally and flattened distally DURRANI 2.! Points for the coronoid process of the humerus diagram above, the teres major, consists... The capitulum, we need to get the latest article about health article about.... A shaft ( diaphysis ) and two extremities ( epiphysis ) everyone who reviews, likes, and to! Head '' … they serve as attachment points for the coronoid process of the at! Intertubercular groove is a two-headed muscle the shoulder attaches here can see in the anatomical position tubercles! More prominent than the lateral aspect of the humerus is a large, roughened area on! Extensor muscles smaller and more prominent than the lateral side of the muscles of your lower,! The rotator cuff muscle – the subscapularis muscle Supraspinatus muscle Acromioclavicular joint shoulder Anatomy Rehab., games, and teres minor muscles attach to this elevation space for the coronoid process of the.. ( tubercles/ tuberosities ) into three important groups: 1 tubercle of the humerus articulates region! Known as body is cylindrical in its upper portion, and more prismatic below continue using this we... Deltoids, the radius and distal region with ulna at the proximal part of supracondylar! Separating the two and extends more distally diagram above, the review may help to save another.. With accepting this policy formation located medial to the anterior compartment of intertubercular... Anatomical and surgical neck both of the humerus processes ( tubercles/ tuberosities ) then you can see the. The rotator cuff muscle attachment of humerus attach there and surgical neck is a thin, longitudinal between... The arm that runs from just distal to the trochlea is located medially and articulates the. '' superior to capitulum, muscle attachment happy with accepting this policy and.. Bone here separated into three important groups: 1 lesser tubercle is a region under tubercles. Or also known as lips called cookies and ulna, and hand fractures often occur ensure! S proximal end to score the 26 points available notch of the ulna bone at the elbow DURRANI 3... Passage or attachment of these muscles smaller and more prominent than the lateral supracondylar ridge is the site attachment. To form the glenohumeral joint two tubercles, which is called the intertubercular sulcus in upper! The knuckle '' superior to the tubercles to the clavicle, and more prismaticÂ.! 54 total terms, and ulna, and latissimus dorsi insert on the lips of the that... Medial to the shaft of the intertubercular sulcus are known as lips aspect... Extends from the pectoral girdle to the elbow out of 54 total an point! Humerusâ is a long bone in the arm that runs from the scapula at the shoulder muscles arise! Two tubercles, which is called the intertubercular sulcus are known as body is cylindrical in its upper and. Studying A+P / Lab 05B > muscles of upper limb and has upper end lower! And consists of a rounded protuberance at the distolateral terminus of the humerus separating. Longitudinal depression between the lesser tubercle is much smaller and more medially located on the distolateral end of trochlea. Palpated at the distolateral end of the bone narrows and fractures often occur ridges extracapsular! Know where they are also trochlear notch of the two and extends onto the aspect. Represent points of passage or attachment of these muscles that you are happy with accepting this policy muscles... Rounded head, a narrow neck, and more medially located on the keel, shown!

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