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BIOL432 Head & Trunk Muscles CAT
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Digastric
Origin - Base of skull
Insertion - Dentary
Action - Depress mandible
External intercostals
Origin - Rib
Insertion - Rib
Action - Protracts ribs
External oblique
Origin - Ribs
Insertion - Ribs
Action - Constricts abdomen
Iliocostalis
Origin - Ribs
Insertion - Ribs
Action - Draws ribs together
Internal intercostals
Origin - Rib
Insertion - Rib
Action - Retracts ribs
Internal oblique
Origin - Pelvis
Insertion - Linea alba
Action - Constricts abdomen
Logissimus capitis
Origin - Cervical vertebrae
Insertion - Mastoid process of temporal
Action - Flexes head laterally
Logissimus dorsi
Origin - Vertebrae
Insertion - Vertebrae
Action - Extends vertebral column
Masseter
Origin - Zygomatic arch
Insertion - Dentary
Origin - Elevates mandible
Rectus abdominis
Origin - Pubis
Insertion - Sternum
Action - Flexing the trunk
Spinalis dorsi / Transversospinalis
Origin - Vertebrae
Insertion - Vertebrae
Action - Extends vertebral column
Splenius
Origin - Vertebrae
Insertion - Back of skull @ Nuchal Crest
Action - Elevates head
Sternomastoid
Origin - Sternum
Insertion - Skull
Action - Depresses snout/skull
Temporalis
Origin - Temporal Foss of Skull
Insertion - Coronoid process of Dentary
Action - Elevates mandible
Author
Geo
ID
108049
Card Set
BIOL432 Head & Trunk Muscles CAT
Description
BIOL432 Head & Trunk Muscles CAT
Updated
2011-10-11T16:31:16Z
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