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Posted: Nov 5 2012
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Infraspinatus Animation

Video Description

INFRASPINATUS

Origin:
Infraspinous fossa of scapula.

Insertion:
Middle facet on greater tuberosity of humerus.

Action:
Laterally rotate arm; helps to hold humeral head in glenoid cavity of scapula.

Innervation:
Suprascapular nerve (C5 and C6) (C5, C6).

Arterial Supply:
Suprascapular and circumflex scapular arteries.

1) Does this animation accurately represent the origin, insertion, and function of the infraspinatus?
Other


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