731 Neck Muscle Action
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16 Terms
platysma action
tense the skin of the neck and draw the lower lip and angle of the mouth inferiorly
sternocleidomastoid action
bilaterally: extends upper c-spine and flexes lower c-spine
unilaterally: contralateral rotation and ipsilateral side bending
anterior scalene action
elevate 1&2 ribs during forced inspiration and side bending of cervical spine
middle scalene action
elevate 1&2 ribs during forced inspiration and side bending of cervical spine
posterior scalene action
elevate 1&2 ribs during forced inspiration and side bending of cervical spine
digastric action
depress mandible and elevate hyoid bone
stylohyoid action
depress mandible and elevate hyoid bone
mylohyoid action
depress mandible and elevate hyoid bone
omohyoid action
pull hyoid down
sternohyoid action
pull hyoid down
sternothyroid action
pull hyoid down and depress thyroid gland
thryohyoid
pull hyoid down and elevates thyroid gland
longus capitis action
flexes upper c-spine
longus colli action
flexes lower c-spine
rectus capitis anterior action
flexes atlanto-occipital joint
rectus capitis lateralis action
ipsilateral side bending
