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Compartments of Arm

QuestionAnswer
What are the muscles in the anterior compartment of the arm? Biceps brachii, brachialis, brachioradialis and coracobrachialis
What is the origin of the long head of biceps brachii? Suplaglenoid tubercle of scapula
What is the origin of the short head of biceps brachii? Coracoid process
What are the 2 insertions of biceps brachii? Radial tuberosity and bicipital aponeurosis
What innervates biceps brachii? Musculocutaneous nerve
What is the function of biceps brachii? Flex of the elbow and reflex of C5/C6 and suppination of the arm
What is the origin of brachialis? Lower half of humerus
What is the insertion of the brachialis? Ulnar tuberosity
What innervates brachialis? Musculocutaneous nerve
What is the function of brachialis? Flexion of the elbow
What is the origin of coracobrachialis? Coracoid process
What is the insertion of coracobrachialis? Midshaft of humerus
What innervates coracobrachialis? Musculocutaneous nerve
What is the function of coracobrachialis Flexion and adduction of shoulder
What is the origin of brachioradialis? Lateral supercondylar ridge
What is the insertion of brachioradialis? Distal styloid process of radius
What innervates brachioradialis? Radial nerve
What do the veins of the arm end as? Axillary vein
What vein joins the axillary before becoming the subclavian vein? Cephalic vein
What vein runs down the radial aspect of the forearm? Cephalic vein
What vein runs down the ulnar aspect of the forearm? Basilic vein
What vein sits above the cubital fossa? Median cubital vein
What cord of the brachial plexus forms the musculocutaneous nerve? Lateral cord
What cord of the brachial plexus forms the radial nerve? Posterior cord
What does radial nerve travel through? Radial groove of humerus
Where does the long head of triceps brachii attach? Infraglenoid tubercle of scapula
What is the origin of the medial head of triceps brachii? Posterior surface of humerus inferior to radial groove
What is the origin of the lateral head of tricpes brachii? Posterior surface of humeerus superior to radial groove
What is the insertion of triceps brachii? Olecranon
What innervates triceps brachii? Radial nerve
What is the function of triceps brachii? Extension of forearm and adduction of shoulder and reflex for C6/C7
What is the origin of aconeus? Lateral epicondyle
What is the the insertion of aconeus? Dorsal proximal ulna
What innervates aconeus Radial nerve
Created by: Birubu
 

 



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