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20 Cards in this Set

  • Front
  • Back

origin

less moveable of the two attachments-(proximal attachment-shoulder)

insertion

the more moveable of the two attachments-distal attachment (elbow)

abductioin

rotation away from the body

adduction

rotation toward body

Rotation

left to right (single ladies)

Circumduction

circular movement

orbicularis oris(orbicular muscle)

the sphincter muscle of the mouth. Surrounds the opening of the mouth and forms the principle. (Kissing muscle- causes lips to close and pucker)

Canine (caninus) muscle

widens external nares and draws back upper lip

Buccinator muscle

flattens cheek area, aids in holding the cheek to teeth while chewing

Levator Nasolabialis

dilates the nostril and elevates and retracts the upper lip

Orbicularis Oculi

sphincter muscle of the eye. It surrounds the opening of the eye and narrows the eye to a horizontal slit when it contracts.

Temporalis Muscle

contraction and the resultant force pulls the mandible upward

Masseter Muscle

raises the mandible and draws it toward the active side, mastication is restricted to one side at a time in domestic species

Humans with vertebrae

33 total vertebrea


-7 cervical


-12 thoracic


-5 lumbar


-5 fused sacral


-3-5 caudal

Horse with vertebrae

54 vertebrae


-7 cervical


-18 thoracic


-6 lumbar


-5 (fused) sacral


-15-21caudal

Cow's vertebrea

total 50 vertebrae


-7 cervical


-13 thoracic


-6 lumbar


-5 (fused) sacral


-18-20 caudal

Pig's Vertebrea

total 51-56 vertebrae

Nucleus Pulposus

allows vertebrae to withstand forces of compression and torsion

Anulus Fibrosis

prevents stress concentrations and protects nucleus pulpous from leaking out

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