Chapter 9

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Author:
DesLee26
ID:
136833
Filename:
Chapter 9
Updated:
2012-02-21 19:04:04
Tags:
Anatomy Physiology
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Seniors
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  1. The spinal cord becomes spaghetti-like after reaching L1 and L2. Here, it is called __.
    the cauda equina (horse tail)
  2. __ are routes followed by nerve impulses as they pass through the nervous system.
    pathways
  3. Interneurons in a withdrawal reflex are located in the __.
    spinal cord
  4. __ are automatic subconscious responses to stimuli within or outside the body.
    Reflexes
  5. Effectors of a reflex arc are __ and __.
    glands and muscles
  6. A knee-jerk employs only __ neurons.
    sensory/ motor -or- 2
  7. The effector of the knee jerk reflex is the __.
    quadricep
  8. The sensory stretch receptors of the knee-jerk reflex are located in the __.
    quadricep
  9. The knee-jerk reflex helps the body to maintain __.
    upright posture
  10. The sensory receptors of a withdrawal reflex are located in the __.
    skin
  11. __ muscles in the limbs are the effectors of a __ reflex.
    • skeletal
    • withdrawal
  12. What is only located in the spinal cord and not the brain?
    epidural space
  13. outermost layer of meninges
    dura mater
  14. follows the irregular contours of spinal cord surface
    pia mater
  15. contains cerebrospinal fluid
    central canal
  16. thin, netlike membrane
    arachnoid mater
  17. separates dura mater from bone of vertebra
    epidural space
  18. Each of the __ segments of the spinal cord gives rise to a pair of __.
    • 31
    • spinal nerves
  19. The bulge in the spinal cord that gives off nerves to the arms is called the __.
    cervical enlargement
  20. The bulge in the spinal cord that gives off nerves to the legs is called the __.
    lumbar enlargement
  21. The __ is a groove that extends the length of the spinal cord, posteriorly.
    posterior median sulcus
  22. The __ of the spinal cord contains cerebrospinal fluid.
    ccentral canal
  23. The longitundinal bundles of nerve fibers within the spinal cord comprise major nerve pathways called __.
    tracts

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