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

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

    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

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

    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

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

    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

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