Lateral view, left side
Lateral view, left sideCat information:
triceps brachii, medial head
origin: shaft of humerus
insertion: olecranon process of
ulna
nerve: radial
action: extension of forearm
Posterior view, left side
Posterior view of origin, right side
Human information:
triceps brachii, medial head
origin: posterior surface of
humerus
distal to radial (spiral) groove
insertion: olecranon process of
ulna
nerve: radial (C7-C8)
action: prime extensor of
forearm
The above drawings of the origin and insertion might help visualize this information (red is the origin, blue the insertion).
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2009 by William C. Johnson II
ALL RIGHTS RESERVED!
