31 Questions
What is the largest muscle in the anterior compartment of the arm?
Biceps Brachii
Where does the long head of the biceps brachii muscle originate from?
Supraglenoid tubercle
What is the function of the short head of the biceps brachii muscle?
Flexion of the elbow
Where does the biceps tendon insert?
Radial tuberosity
What structure crosses medially over the superficial flexors of the forearm?
Bicipital aponeurosis
Where does the bicipital aponeurosis attach?
Ulna
What is the function of the biceps brachii muscle?
Flexion of the shoulder and elbow
Which muscle is a powerful supinator of the radioulnar joints?
Coracobrachialis
Where does the coracobrachialis muscle insert?
Medial aspect of the humerus
What is the action of the brachialis muscle?
Flexion of the elbow joint
What are the actions of the triceps brachii muscle?
Extension of the shoulder and elbow joints
What are the actions of the deltoid muscle?
Adducts, flexes, extends, medially and laterally rotates the shoulder joint
What structures pass through the Quadrangular Space?
Axillary nerve and Posterior Circumflex Humeral artery
What does the pectoralis minor muscle do?
Protract the scapula
Which nerve can be seen passing posteriorly through a quadrangular space with the posterior circumflex humeral artery?
Axillary nerve
What is the name of the area of skin supplied by the axillary nerve?
Badge area
What is the name of the artery that is the stem artery of the upper limb?
Subclavian artery
On which side of the body does the subclavian artery usually branch directly from the aorta?
Left side
What artery does the axillary artery change its name to as it crosses the lower border of teres major?
Brachial artery
What artery accompanies the radial nerve in the spiral groove of the humerus to supply triceps and the elbow joint?
Profunda brachii artery
What is the name of the muscle/tendon that lies lateral to the brachial artery in the cubital fossa?
Biceps Brachii
What are the two arteries that the brachial artery divides into in the forearm?
Radial and ulnar arteries
What is the phenomenon called where there may be two or more small veins lying either side of one artery?
Venae Comitantes
Which muscles does the musculocutaneous nerve supply?
Biceps, coracobrachialis, and brachialis
Which area of the forearm does the lateral cutaneous nerve of the forearm supply?
Lateral forearm
Which muscles does the ulnar nerve supply?
Flexor muscles of the forearm and intrinsic muscles of the hand
Which area of the hand does the ulnar nerve supply?
Palmer aspect and digits 1, 2, 3, and half of digit 4
Which muscles does the median nerve supply?
Almost all of the muscles of the anterior compartment of the forearm and some of the intrinsic muscles of the hand
Which area of the hand does the median nerve supply?
Palmer aspect and digits 1, 2, 3, and half of digit 4
Which muscles does the radial nerve supply?
Muscles and skin over the whole posterior aspect of the upper limb
Which area of the hand does the radial nerve supply?
Dorsal aspect and digits 1, 2, 3, and half of digit 4
Test your knowledge on the musculocutaneous nerve and its pathway as it pierces the coracobrachialis muscle and travels deep to the biceps. Learn about its terminal branches and the specific landmarks along its course.
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