Upper Limb Muscles Anatomy

The origin of the pectoralis major muscle is the medial half of the clavicle and the front of the sternum and upper 6 costal cartilages.

The action of the serratus anterior muscle is protraction and upward rotation of the scapula, and fixation of the scapula's medial border.

The insertion of the latissimus dorsi muscle is the floor of the bicipital groove of the humerus.

<p>The origin of the trapezius muscle is the external occipital process, nuchal ligament, C7 spine, thoracic spines, and supraspinous ligaments.</p> Signup and view all the answers

<p>The insertion of the supraspinatus muscle is the upper facet of the greater tuberosity of the humerus.</p> Signup and view all the answers

<p>The action of the subscapularis muscle is medial rotation of the arm.</p> Signup and view all the answers

<p>Elevates, retracts and rotates scapula upwards, and stabilizes shoulder from behind.</p> Signup and view all the answers

<p>Supraglenoid tubercle (long head) and coracoid tip (short head).</p> Signup and view all the answers

<p>Flexion of the wrist and fingers.</p> Signup and view all the answers

<p>Upper ½ of humerus, front.</p> Signup and view all the answers

<p>Common flexor origin and medial side of olecranon process of ulna.</p> Signup and view all the answers

<p>Supination of the forearm.</p> Signup and view all the answers

<p>In the cubital fossa, at the level of the radius neck, dividing into radial and ulnar arteries.</p> Signup and view all the answers

<p>Forearm: radial recurrent, muscular, and ant. carpal; Hand: post. carpal, radialis indicis, and deep palmar arch.</p> Signup and view all the answers

<p>In the cubital fossa, at the level of the radius neck, as one of the brachial artery terminals.</p> Signup and view all the answers

<p>The site of the scapula bone is posterior, covering ribs 2-7.</p> Signup and view all the answers

<p>Forearm: ant. and post. ulnar recurrent, muscular; Hand: ant. and post. carpal, and superficial palmar arch.</p> Signup and view all the answers

<p>Acromioclavicular, synovial plane.</p> Signup and view all the answers

<p>Synovial plane joint and synovial modified saddle joint, respectively.</p> Signup and view all the answers

<p>Pectoralis major clavicular head.</p> Signup and view all the answers

<p>Humerus and glenoid cavity of the scapula.</p> Signup and view all the answers

<p>Subclavius groove.</p> Signup and view all the answers

<p>Greater tuberosity.</p> Signup and view all the answers

<p>The pulmonary trunk begins at the pulmonary orifice of the right ventricle, opposite the left 3rd sternocostal junction, and terminates at the disc between T4 and T5, dividing into the right and left pulmonary arteries.</p> Signup and view all the answers

<p>The branches of the ascending aorta are the right and left coronary arteries.</p> Signup and view all the answers

<p>Synovial hinge joint, formed by the humerus, trochlea, and capitulum.</p> Signup and view all the answers

<p>The aortic arch begins at the right 2nd sternocostal junction, as a continuation of the ascending aorta, and ends at the right 2nd sternocostal junction, becoming the descending aorta.</p> Signup and view all the answers

<p>The descending aorta has anterior relations with the pericardium and esophagus, right relations with the esophagus and azygos vein, and posterior relations with the supremai and inferior hemiazygos veins.</p> Signup and view all the answers

<p>The superior vena cava begins at the right 1st costal cartilage, by the union of the right and left brachiocephalic veins, and ends at the right 3rd costal cartilage, by opening into the right atrium.</p> Signup and view all the answers

<p>The phrenic nerve originates in the neck, at the level of C3, 4 and 5.</p> Signup and view all the answers