muscle exam

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Author:
Siobhan
ID:
183541
Filename:
muscle exam
Updated:
2012-11-13 22:48:25
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muscle exam
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muscle exam
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  1. brevis
    short
  2. latissimus
    widest
  3. longissimus
    longest
  4. vastus
    huge
  5. magnus
    large
  6. serratus
    saw toothed shape
  7. piriformis
    pear shaped
  8. platys
    flat
  9. quadratus
    four sided
  10. sphincter
    decreases size of opening
  11. tensor
    makes body partly rigid
  12. parallel
    • terminate in flat tendons
    • bundles are in parallel to the long axis

    ex styloid
  13. fusiform
    • terminate in flat tendons
    • bundles are in parallel to the long axis
    • muscles tapers toward tendon- diameter less than at teh belly of the muscle- digastric
  14. pennate
    short bundles in relation to muscle length.  Tendon extends nearly the entire length of muscle.

    unipene, bipennate, multipennate
  15. unipennate
    • bundles on only one side of tendon. 
    • ex- extensor digitorum longus
  16. bipennate
    • bundles on both sides of centrally placed tendon
    • rectus femorus
  17. multipennate
    bundles attach obliquely from many directions to several tendons

    deltoid
  18. functions of body
    movement posture, respiration, production  of body heat, communication, constriction of organs and vessels, contraction of heart
  19. fascicles
    skeletal muscle fibers within a muscle are arranged in bundles 
  20. four major functional characteristics
    • contractility- ability to shorten with force
    • excitability- respond to stimulus
    • extensibility- can stretch
    • elasticity- recoil to original lasting strength
  21. epimysium
    connective tissue that surrounds entire skeletal muscle outside
  22. muscle fasciculus
    bindles of muscle fibers
  23. perimysium
    connective tissue around each muscle fasciculus
  24. muscle fiber
    a fasciculus is composed of several muscle cells
  25. endomysium
    loose connective tissue that surrounds each muscle fiber. 

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