elbow and forearm muscles

Question 1

biceps brachii

Answer 1

o: long head - supraglenoid tubercle of the scapula, short head - corocoid process
i: radial tuberosity
in: musculocutaneous
action: elbow flexion, supination, shoulder flexion
position: sitting

Question 2

brachialis

Answer 2

o: anterior distal half of humerus
i: coronoid process
in: musculocutaneous
action: elbow flexion
position: sitting

Question 3

brachioradialis

Answer 3

o: lateral suprcondylar ridge of humerus
i: distal and lateral aspect of radius
in: radial nerve
action: elbow flexion
position: sitting

Question 4

triceps brachii

Answer 4

o: infraglenoid tubercle, posterior humerus
i: olecranon
in: radial nerve
action: elbow extension, shoulder extension
position: sitting

Question 5

pronator teres

Answer 5

o: medial humeral epicondyle, proximal ulna (pronator ridge)
i: lateral surface of radius
in: median nerve
action: pronate the forearm
position: sitting

Question 6

supinator

Answer 6

o: lateral humeral epicondyle, supinator crest and supinator fossa of the ulna
i: proximal radius
in: radial nerve
action: supinates the forearm
position: sitting