Anatomy & Physiology - Nervous System/CNS - Pt. 5

The Spinal Cord
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1
How many spinal nerve pairs are in the Spinal Cord?
  • 24
  • 31
  • 30
  • 25
  • 2
    The Ventral Root enlarges to form the ganglion.
  • True
  • False
  • 3
    How many spinal nerves are in the Cervical spine?
  • 4
  • 7
  • 8
  • 5
  • 4
    The Cauda Equina is located where?
  • Posterior base of skull
  • Bottom of spinal cord
  • In the cerebral cortex
  • 5
    Put the following Neuron types in order according to their signals. (i.e. neuron type, its signal, neuron type, its signal...)
    • Signal goes from Spinal Cord to Thalamus
    • Primary
    • Tertiary
    • Secondary
    • Signal goes from Thalamus to Cerebral Cortex
    • Signal goes from Sensory Receptor to Spinal Cord

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    6
    Decussation means 'cross over'.
  • True
  • False
  • 7
    Flaccid Paralysis is when injuries to the lower motor neurons result in lack of signal to the muscles, causing absence of movement.
  • True
  • False
  • 8
    Cerebrospinal Fluid (CSF) fills what part(s) of the brain, and travels through the spinal cord?
  • Cerebellum
  • Ventricles
  • Meninges (Maters)
  • Vestibular Apparatus
  • 9
    Put the following tracts of the spinal cord with their functions (i.e. tract, function, tract, function).
    • Conduct motor impulses from the brain down the cord to the spinal nerves.
    • Conduct Sensory Impulses such as pain, touch, and temperature up from the spinal nerves to the brain
    • Ascending Tracts
    • Descending Tracts
    • Signal goes from Thalamus to Cerebral Cortex
    • Signal goes from Sensory Receptor to Spinal Cord

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    10
    Put the following Motor Descending Tracts in order with their functions. (i.e. MDT, function, MDT, function...)
    • Handle voluntary movements on same side as cerebral cortex
    • Anterior/Ventral Corticospinal Tracts
    • Lateral Corticospinal Tracts
    • Handle voluntary movements on opposite side from cerebral cortex
    • Signal goes from Thalamus to Cerebral Cortex
    • Signal goes from Sensory Receptor to Spinal Cord

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    11
    Put the following Motor Descending Tracts in order with their functions. (i.e. MDT, function, MDT, function...)
    • Lateral Reticulospinal Tracts
    • Transmit facilitatory impulses from medulla to muscles that handle muscle tone & extensor reflexes
    • Medial Reticulospinal Tracts
    • Trasmit impulses that coordinate body movements & posture
    • Carry impulses from pons to muscles that deal with muscle tone & extensor reflexes
    • Rubrospinal Tracts

    Use your mouse to drag and drop the answers above into the correct order

    Unanswered questions will be marked as wrong