Muscle Shapes

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Author:
cswett
ID:
43895
Filename:
Muscle Shapes
Updated:
2010-10-20 23:16:03
Tags:
Muscles Anatomy
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Description:
Table 11.1
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  1. Parallel
    fasicles parallel to longitudinal axis of muscle - terminate at either end in flat tendons
  2. Circular
    fascicles in concentric rings from sphincter muscles that enclose an oriface
  3. fusiform
    fasicles nearly parallel to longitudinal axis of muscle - terminate in flat tendons - muscle is fat in middle and tapers toward tendons
  4. triangular
    fascicles spread over broad area converge at thick central tendon - gives muscle triangular appearance
  5. Pennate
    Unipennate
    Bipennate
    Multipennate
    • Pennate - short fasicles in relation to toal muscle length - tendon extends entire length of muscle
    • Unipennate - fasicles arranged on one side of tendon
    • Bipennate - fascicles on both sides of tendon
    • Multipennate - fascicles attach obliquely from many directions to several tensons
  6. Rectus
    Parallel to midline
  7. Transverse
    perpendicular to midline
  8. Oblique
    diagonal to midline
  9. Maximus
    largest
  10. Minimus
    smallest
  11. Longus
    long
  12. brevis
    short
  13. latissimus
    widest
  14. longissimus
    longest
  15. magnus
    Large
  16. major
    larger
  17. minor
    smaller
  18. vastus
    huge
  19. deltoid
    triangular
  20. trapezius
    trapezoid
  21. serratus
    sawtoothed
  22. rhomboid
    diamond-shaped
  23. orbicularis
    cricular
  24. pectinate
    comblike
  25. piriformis
    pear-shaped
  26. platys
    flat
  27. quadratus
    square, four sided
  28. gracilis
    slender
  29. flexor
    decreases joint angle
  30. extensor
    increases joint angle
  31. abductor
    moves a bone away from midline
  32. adductor
    moves bone toward midline
  33. levator
    raises or elevates a body part
  34. depressor
    lowers a body part
  35. supinator
    turns palm anteriorly
  36. pronator
    turns a palm posteriorly
  37. sphincter
    decreases the size of an opening
  38. tensor
    makes a body part rigid
  39. rotator
    rotates a bone around its longitudinal axis
  40. biceps
    two origins
  41. triceps
    three origins
  42. quadriceps
    four origins

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