The skeletal muscle having three origins that extends the forearm
when it contracts.
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Triceps Brachii
,Abducts arm; stabilizes the head of the humerus in glenoid cavity; one
of the "rotator cuff" muscles
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Supraspinatus
Action: extends thumb; Origin: dorsal shaft of ulna and radius;
Insertion: base of distal phalanx of thumb.
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Extensor Pollicis Longus
anterior part of the external lip of iliac crest, outer surface of ASIS,
and deep surface of fascia lata
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, Tensor Fascia Lata
Action: pulls ribs toward one another to elevate rib cage.
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External intercostal
a muscle in the thigh that helps to rotate the leg into the sitting
position assumed by a tailor
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Sartorius
Action: extends, adducts, and medially rotates the arm; draws the
shoulder downward and backward.
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when it contracts.
Give this one a try later!
Triceps Brachii
,Abducts arm; stabilizes the head of the humerus in glenoid cavity; one
of the "rotator cuff" muscles
Give this one a try later!
Supraspinatus
Action: extends thumb; Origin: dorsal shaft of ulna and radius;
Insertion: base of distal phalanx of thumb.
Give this one a try later!
Extensor Pollicis Longus
anterior part of the external lip of iliac crest, outer surface of ASIS,
and deep surface of fascia lata
Give this one a try later!
, Tensor Fascia Lata
Action: pulls ribs toward one another to elevate rib cage.
Give this one a try later!
External intercostal
a muscle in the thigh that helps to rotate the leg into the sitting
position assumed by a tailor
Give this one a try later!
Sartorius
Action: extends, adducts, and medially rotates the arm; draws the
shoulder downward and backward.
Give this one a try later!
