BIOL432 Head & Trunk Muscles CAT

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

108049

Card Set

BIOL432 Head & Trunk Muscles CAT

Description

BIOL432 Head & Trunk Muscles CAT

Updated

2011-10-11T16:31:16Z

Show Answers