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bio 240 lab list 10 ncsu klesath.
bio 240 lab list 10 ncsu klesath.
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bio 240 lab list 10 ncsu klesathexternal intercostals - ANS-origin: inferior border of superior rib
insertion: superior border of inferior rib
action: elevates rib
internal intercostals - ANS-origin: superior border of inferior rib
insertion: inferior border of superior rib
action: depresses rib
masseter: - ANS-origin: zygomatic arch
insertion: coronoid process, lateral surface and angle of mandible
action: elevates and protracts mandible
orbicularis oculi - ANS-origin: medial wall or margin of the orbit
insertion: skin surrounding eyes
action: closes eye;winking;blinking;squinting
orbicularis oris - ANS-origin: maxilla and mandible
insertion: encircles mouth; skin and muscles at the angles to mouth
action: compresses and purses lips
rectus abdominis - ANS-origin: pubic crest and pubic symphysis
insertion: xiphoid process and inferior ribs
action: flexes vertebral column; compresses abdomen
serratus anterior - ANS-origin:r ribs 1-8
insertion: medial borders of scapula
action: superior rotates scapula; stabilizes scapula
sternocleidomastoid - ANS-origin: manubrium and sternal end of clavicle
insertion: mastoid process
action: laterally flexes head and neck, flex neck
temporalis - ANS-origin: superior and inferior temporal lines
insertion: coronoid process of mandible
action: elevates and retracts mandible
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