Ascending tracs of spinal cord(bio exam 4)

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Author:
rcrchick
ID:
14367
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Ascending tracs of spinal cord(bio exam 4)
Updated:
2010-04-13 20:17:50
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exam 4 Ascending tracs of spinal cord
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exam 4 Ascending tracs of spinal cord
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  1. Origin: posterior funiculus
    Termination: medulla- fibers cross on way to cerebrum
    Function: proprioception, fine touch, 2 point discrimination, weight discrimination, vibration and sterognosis (ability to recognize size, shape, and texture of an object)
    • Fasciculus gracilis
    • &
    • Fasciculus cuneatus
  2. Origin: posterior gray horn-fibers cross
    Termination:
    thalamus
    Function:
    pain and temperature
    Lateral spinothalmic
  3. Origin: posterior gray horn- fibers cross
    Termination:
    thalamus
    Function:
    crude touch and pressure
    Anterior spinothalmic
  4. Origin: posterior gray horn- fibers do not cross
    Termination:
    cerebellum
    Function:
    kinesthetic or subconscious proprioception
    Posterior spinocerebellar
  5. Origin: posterior gray horn- some fibers cross and some do not cross
    Termination:
    cerebellum
    Function:
    kinesthetic or subconscious proprioception
    Anterior spinocerebellar

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