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Muscular System (Anterior (Head and neck (Zygomaticus (raises corner of…

- - - - flexes vertebral column
    - - flexes and rotates vertebral column
    - - adducts and flexes humerus
  - - - abducts arm
    - - flexes elbow and supinates forearm
  - - - raises corner of the mouth
    - - closes jaw
    - - closes jaw
    - - compresses cheek as in whistling and sucking; holds food between teeth during chewing
    - - closes and protrudes lips
    - - blinks and closes eyes
    - - pulls corner of the mouth inferiorly
    - - raises eybrow
    - - flexes neck; rotates head
  - - - dorsiflexes and inverts foot
    - - extends toes and dorsiflexes foot
    - - all extend knee; rectus femoris also flexes hip on thigh
    - - flexes thigh on hip
    - - abducts thigh
    - - plantar flex and evert foot
    - - flexes hip
- - - - branching chains of cells; uninucleate, striations
        
        Involuntary
  - - - single, fusiform, uninucleate; no striations
        
        Involuntary
  - - - single, very long, cylindrical, multinucleate cells with very obvious striations
        
        Voluntary
- - - - extends back
    - - extends and adducts humerus
    - - abducts humerus
    - - extends neck and adducts scapula
  - - - flexes wrist and abducts hand
    - - flexes wrist and abducts hand
    - - extends elbow
    - - flexes wrists and fingers
    - - extends wrists and abducts hand
    - - extends fingers and wrist
  - - - plantar flexes foot and flexes knee
    - - extends hip
    - - abducts thigh
    - - flex knee and extend hip
    - - plantar flexes foot