Direction of fiber / muscle contraction: ( LEFT, RIGHT, UP, OR DOWN ) Masseter & temporalis Lateral rectus...

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Medical Sciences

Direction of fiber / muscle contraction: ( LEFT, RIGHT, UP, ORDOWN )

  1. Masseter & temporalis
  2. Lateral rectus (of the eye)
  3. Sternocleidomastoid
  4. Rectus abdominus
  5. Multifidi
  6. Trapezius
  7. External oblique & internal oblique (one on the right andone on the left)
  8. Pectoralis major
  9. Deltoid
  10. Latissimus dorsi

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4.0 Ratings (447 Votes)
Direction of muscle fibre are usually will be in the direction of orgin to insertion 1Masseter and temporalis DOWN This are the muscle used for the mastication it is directed downward in the body 2    See Answer
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