draws corners of mouth inferiorly.
-helps with expression of sadness/fright
-unilateral and bilateral contraction
-tilts head to side
-rotates neck so the face points superiorly to opposite side
-when bilateral contraction, they flex the neck
depresses hyoid bone after it has been elevated for swallowing
depresses, retracts and steadies hyoid bone
aids in tongue movement and swallowing
-elevates 1st rib during inspiration when neck is fixed
-lateral flexion (to the same side)
-elevate 1st rib during inspiration when neck is fixed
-raises 2nd rib
most muscular innervation of upper limbs
-adducts and medially rotates humerus
-draws scalpula anterior and inferiorly
-pulls arm across chest
-pulls scalpula anterior and downward
-protract and rotate scalpula
draw ventral part of rib upward
draws ventral part of rib inward/downward
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