Muscles of the Posterior Arm Flashcards
1
Q
Triceps Brachii (long head)
A
origin: infraglenoid tubercle
insertion: olecranon of the ulna
innervation: radial N. (C5-T1)
action: extension at the elbow joint, extension at the shoulder
2
Q
Triceps Brachii (lateral head)
A
origin: posterior humerus lateral and superior to the radial groove
insertion: olecranon of the ulna
innervation: radial N. (C5-T1)
action: extension at the elbow joint
3
Q
Triceps Brachii (medial head)
A
origin: posterior humerus medial and inferior to the radial groove
insertion: olecranon of the ulna
innervation: radial N. (C5-T1)
action: extension at the elbow joint