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Glossary of Cat Muscle Lab

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What is the origin of the Masseter muscle?
Zygomatic Arch
What is the insertion of the Masseter muscle?
Mandible
What is the action of the Masseter muscle?
closes jaw
What is the origin of the Temporalis?
temporal bone
What is the insertion of the Temporalis?
mandible
What is the action of the Temporalis?
closes jaw
What is the origin of the Sternocleidomastoid in the human and the sternomastoid & cleidomastoid in the cat?
sternum and clavicle
What is the insertion of the sternocleidomastoid?
mastoid process of temporal bone
What is the action of the sternocleidomastoid?
flexes neck and turns head
What is the origin of the trapezius in the human and the spinotrapezius, acromiotrapezius, and clavotrapezius in the cat?
occipital bone and spines of upper vertebrae
What is the insertion of the trapezius?
clavicle and scapula
What is the action of the trapezius?
moves scapula upward, downward, and medially
What is the origin of the Latissimus Dorsi?
lower vertebrae, ribs, and ilium
What is the insertion of the Latissimus Dorsi?
humerus
What is the action of the Latissimus Dorsi?
rotates arm medially and pulls shoulders back and down
What is the origin of the Rhomboideus?
upper thoracic vertebrae
What is the insertion of the Rhomboideus?
scapula
What is the action of the Rhomboideus?
adducts scapula
What is the origin of the Levator Scapula?
cervical vertebrae
What is the insertion of the Levator Scapula?
scapula
What is the action of the Levator Scapula?
raises scapula

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