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CENTRAL NERVOUS SYSTEM TEST REVIEW
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CENTRAL NERVOUS SYSTEM TEST REVIEW
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CENTRAL NERVOUS SYSTEM TEST REVIEWWhat 2 organs make up the CNS? - answer- Brain and the Brain Stem
What is the most superficial of the meniges? - answer- Dura Mater
What is the function of cerebrospinal fluid? - answer- This fluid also serves as a slight
form of protection. Cerebrospinal fluid is much like blood plasma, a clear or straw
colored fluid.
Why is the Pia Mater important as a menige? - answer- It contains many blood vessels
that serve to nourish the surface of the CNS.
What material fills the subarachnoid space? - answer- Cerebrospinal fluid
What is the function(s) of the spinal cord? - answer- Conduction of nerve impulses up
and down its length and it acts as a center for spinal reflexes.
The termination of the spinal cord is called the... - answer- Cauda Equina
How many pairs of spinal nerves come off the spinal cord? - answer- 31
Explain the arrangement of white matter and grey matter in the spinal cord - answer-
White matter surrounding gray matter.
Myelinated neurons make up ascending fibers and descending fibers of the spinal cord,
what type of nerve impulses do each of them carry? - answer- Ascending tracts- carry
sensory impulses to the brain.
Descending tracts- carry motor impulses from the brain to various effectors.
List the functions of the cerebellum. - answer- Mostly as a reflex center for the
coordination of skeletal muscle contractions.
Acts with the cerebral cortex to produce skilled movement by coordinating the activities
of groups of muscles.
Helps control posture. Functions below the level of consciousness to make movements
smooth, steady and efficient.
Controls skeletal muscles to maintain balance.
List the functions of the cerebrum. - answer- Interpretation of sensory impulses from
various sense organs.
Initiates voluntary muscle contractions.
Stores information for memory and utilizes this data for reasoning.
Functions in the determination of a person's intelligence and personality.
Explain what the motor, sensory, and associative neurons function in. - answer- Motor
area- deals with voluntary muscle contraction
Sensory areas-deal with the monitoring of the various sensory organs of the body
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