⭐️💆‍♀️Triceps Brachii

Question 1

Origin

Answer 1

Long head: infraglenoid tubercule
Lateral head: proximal 1/2 of posterior shaft of humerus
Medial head: distal 1/2 of posterior shaft of humerus

Question 2

Insertion

Answer 2

Olecranon process of ulna

Question 3

Function

Answer 3

Ext of forearm at elbow joint
Ext of arm at shoulder joint (long head)
Horizontal ABD at shoulder joint (long head)

Question 4

Nerve

Answer 4

Radial