BI 232 Exam 2 Questions With Correct
Answers
What are the cells of the nervous system? - CORRECT ANSWER✔✔-
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Oligodendrocyte, astrocyte, Schwann cells, satellite cells, microglia,
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ependymal cells |
What is the function of the spinal cord? - CORRECT ANSWER✔✔-
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Transmission of nerve signals from the motor cortex to the body
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What parts of the body communicate with the spinal cord? - CORRECT
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ANSWER✔✔-" Nerves communicate with the spinal cord
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What is the arrangement of gray and white matter in the spinal cord? -
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CORRECT ANSWER✔✔-Gray is found deep to white matter
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What are the supportive cells found in the CNS? - CORRECT
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ANSWER✔✔-Astrocyte, oligodendrocyte, microglia, ependymal cell | | | |
What is the specific function of each of these supportive cells? -
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CORRECT ANSWER✔✔-astrocyte: maintain extracellular environment,
| | | | |
remove excess NT, direct neural growth, induce BBB in CNS;
| | | | | | | | | |
,oligodendrocyte: create myelin; microglia: immune surveillance and
| | | | | | |
phagocytosis; ependymal cell: create and circulate CSF
| | | | | |
Which cell is responsible for forming the blood-brain barrier and why is
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this so very important? - CORRECT ANSWER✔✔-Astrocyte. Only allows
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certain things into the blood for the brain
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Which cell is responsible for myelination in the CNS and why is this
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important? - CORRECT ANSWER✔✔-Oligodendrocyte, allows action
| | | | | |
potentials to travel faster| | |
Which cells have an immune function? - CORRECT ANSWER✔✔-
| | | | | | | |
microglia
What are the brain ventricles (be able to name the 4 ventricles)? -
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CORRECT ANSWER✔✔-Lateral (x2), 3rd, 4th
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Which of the 4 ventricles are the largest? - CORRECT ANSWER✔✔-
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lateral
What do ventricles contain? - CORRECT ANSWER✔✔-CSF
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,How and where is CSF made (please know the term choroid plexus)? -
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CORRECT ANSWER✔✔-CSF is made by ependymal cells within the
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choroid plexus of the ventricles. It is formed from blood plasma.
| | | | | | | | | |
What cells make CSF? Where (how) does CSF rejoin the circulatory
| | | | | | | | | | |
system? - CORRECT ANSWER✔✔-Ependymal cells. Circulates through
| | | | | | |
the ventricles down through the central canal of the spinal cord and up
| | | | | | | | | | | | |
through the subarachnoid space into arachnoid granulations. From
| | | | | | | |
there the CSF flows into the superior sagittal sinus where it is absorbed
| | | | | | | | | | | | |
into venous circulation.
| |
What is the function of CSF? - CORRECT ANSWER✔✔-Gives buoyancy to
| | | | | | | | | |
the CNS structures, protects from trauma, nourishes the brain, carries
| | | | | | | | | | |
chemical signals. |
How does CSF protect the brain? - CORRECT ANSWER✔✔-allows it to
| | | | | | | | | | |
float in the skull
| | |
What are the cell types of the PNS? - CORRECT ANSWER✔✔-Satellite
| | | | | | | | | | |
cell and Schwann cell
| | |
Which ones are responsible for myelination and what is the functional
| | | | | | | | | | |
significance of myelination? - CORRECT ANSWER✔✔-Schwann cell is
| | | | | | | |
responsible for myelination | |
, What is the general anatomy of the spinal cord? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Long cord with a cervical and lumbar enlargement | | | | | | |
What is the spinal cord made of? - CORRECT ANSWER✔✔-Neurons
| | | | | | | | |
Where the spinal cord located? - CORRECT ANSWER✔✔-In the spinal
| | | | | | | | | |
column
Where does the spinal cord begin? - CORRECT ANSWER✔✔-Below the
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brain stem
|
Where does it end? - CORRECT ANSWER✔✔-Lumbar region
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What is the cauda equina? - CORRECT ANSWER✔✔-Long bundle of
| | | | | | | | | |
nerves at the end of the spinal cord
| | | | | | |
Where are the two enlargements and why? - CORRECT ANSWER✔✔-
| | | | | | | | |
Cervical and lumbar. This is where the limbs attach so there is a higher
| | | | | | | | | | | | | |
need for nerves at these locations
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What emerges laterally from the spinal cord? - CORRECT ANSWER✔✔-
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Spinal nerves|
Answers
What are the cells of the nervous system? - CORRECT ANSWER✔✔-
| | | | | | | | | |
Oligodendrocyte, astrocyte, Schwann cells, satellite cells, microglia,
| | | | | | |
ependymal cells |
What is the function of the spinal cord? - CORRECT ANSWER✔✔-
| | | | | | | | | |
Transmission of nerve signals from the motor cortex to the body
| | | | | | | | | |
What parts of the body communicate with the spinal cord? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-" Nerves communicate with the spinal cord
| | | | | |
What is the arrangement of gray and white matter in the spinal cord? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-Gray is found deep to white matter
| | | | | | |
What are the supportive cells found in the CNS? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Astrocyte, oligodendrocyte, microglia, ependymal cell | | | |
What is the specific function of each of these supportive cells? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-astrocyte: maintain extracellular environment,
| | | | |
remove excess NT, direct neural growth, induce BBB in CNS;
| | | | | | | | | |
,oligodendrocyte: create myelin; microglia: immune surveillance and
| | | | | | |
phagocytosis; ependymal cell: create and circulate CSF
| | | | | |
Which cell is responsible for forming the blood-brain barrier and why is
| | | | | | | | | | | |
this so very important? - CORRECT ANSWER✔✔-Astrocyte. Only allows
| | | | | | | | |
certain things into the blood for the brain
| | | | | | |
Which cell is responsible for myelination in the CNS and why is this
| | | | | | | | | | | | |
important? - CORRECT ANSWER✔✔-Oligodendrocyte, allows action
| | | | | |
potentials to travel faster| | |
Which cells have an immune function? - CORRECT ANSWER✔✔-
| | | | | | | |
microglia
What are the brain ventricles (be able to name the 4 ventricles)? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-Lateral (x2), 3rd, 4th
| | | |
Which of the 4 ventricles are the largest? - CORRECT ANSWER✔✔-
| | | | | | | | | |
lateral
What do ventricles contain? - CORRECT ANSWER✔✔-CSF
| | | | | |
,How and where is CSF made (please know the term choroid plexus)? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-CSF is made by ependymal cells within the
| | | | | | | | |
choroid plexus of the ventricles. It is formed from blood plasma.
| | | | | | | | | |
What cells make CSF? Where (how) does CSF rejoin the circulatory
| | | | | | | | | | |
system? - CORRECT ANSWER✔✔-Ependymal cells. Circulates through
| | | | | | |
the ventricles down through the central canal of the spinal cord and up
| | | | | | | | | | | | |
through the subarachnoid space into arachnoid granulations. From
| | | | | | | |
there the CSF flows into the superior sagittal sinus where it is absorbed
| | | | | | | | | | | | |
into venous circulation.
| |
What is the function of CSF? - CORRECT ANSWER✔✔-Gives buoyancy to
| | | | | | | | | |
the CNS structures, protects from trauma, nourishes the brain, carries
| | | | | | | | | | |
chemical signals. |
How does CSF protect the brain? - CORRECT ANSWER✔✔-allows it to
| | | | | | | | | | |
float in the skull
| | |
What are the cell types of the PNS? - CORRECT ANSWER✔✔-Satellite
| | | | | | | | | | |
cell and Schwann cell
| | |
Which ones are responsible for myelination and what is the functional
| | | | | | | | | | |
significance of myelination? - CORRECT ANSWER✔✔-Schwann cell is
| | | | | | | |
responsible for myelination | |
, What is the general anatomy of the spinal cord? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Long cord with a cervical and lumbar enlargement | | | | | | |
What is the spinal cord made of? - CORRECT ANSWER✔✔-Neurons
| | | | | | | | |
Where the spinal cord located? - CORRECT ANSWER✔✔-In the spinal
| | | | | | | | | |
column
Where does the spinal cord begin? - CORRECT ANSWER✔✔-Below the
| | | | | | | | | |
brain stem
|
Where does it end? - CORRECT ANSWER✔✔-Lumbar region
| | | | | | |
What is the cauda equina? - CORRECT ANSWER✔✔-Long bundle of
| | | | | | | | | |
nerves at the end of the spinal cord
| | | | | | |
Where are the two enlargements and why? - CORRECT ANSWER✔✔-
| | | | | | | | |
Cervical and lumbar. This is where the limbs attach so there is a higher
| | | | | | | | | | | | | |
need for nerves at these locations
| | | | |
What emerges laterally from the spinal cord? - CORRECT ANSWER✔✔-
| | | | | | | | |
Spinal nerves|
