Muscular system

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Author:
andreathors16
ID:
92447
Filename:
Muscular system
Updated:
2011-06-29 18:19:12
Tags:
Intro AP
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Description:
mini course 3
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  1. the name of the main musscle that flexes the lower arm is the
    biceps brachii
  2. the name of the main musscle that extends the neck is the
    trapezius
  3. the motor nerver and all of the skeletal muscle fibers it innervates is called
    motor unit
  4. a place where a muscle attaches to an immovable part of the sleleton is called the
    origin
  5. two muscles whose contraction brings about the same type of movement in the same bones are called
    synergists
  6. the partial or slight contraction of a muscle is called
    tone
  7. the movement that decreases the angle at the joint is called
    flexion
  8. the movement of a leg towards the midline of the body is called
    adduction
  9. excitability
    capcity to respond to a stimulus
  10. contractility
    muscles can shorten
  11. extensibility
    can stretch when force is applied
  12. kinds of muscle tissue
    • skeletal- voluntary, many nuclei, they shorten muscle fibers
    • smooth-involuntary, single nucleus, lines blood vessels and organs.
    • cardiac-found in the heart, simple nucleus
  13. origin
    fixed attachments, seen in face
  14. insertion
    freely movable
  15. tendon
    connective tissue, conect muscle to bone
  16. ligaments
    attaches musscle to musscle

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