Central Nervous System Histology (Msq Drill 263)

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    The schwann cell produces myelin in the PNS or CNS?

    • PNS
    • CNS
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Central Nervous System Histology (Msq Drill 263) - Quiz
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  • 2. 

    The principle and the functional cell of the nervous system is the

    • Astrocyte

    • Glial cells

    • Neuron

    • Caudate nucleus

    Correct Answer
    A. Neuron
  • 3. 
    Do astrocytes also form part of the blood brain barrier? - ProProfs

    Do astrocytes also form part of the blood brain barrier?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    Inotherwords they are involved in regulating the passage of materials from blood to CNS.

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  • 4. 

    The areas of the perikaryon that stain basic and are full of rER and free ribosomes are called

    • Basal bodies

    • Inclusion bodies

    • Prominent bodies

    • Nissl bodies

    • Chromatin

    Correct Answer
    A. Nissl bodies
  • 5. 

    _____________  transports molecules (nutrients, neurotransmitters) and organelles (mitochondria, neurofilaments) from cell body to distal end of axon.

    • Retrograde transport

    • Anterograde transport

    Correct Answer
    A. Anterograde transport
  • 6. 

    A schwann cell usually associates with how many axons?

    • 0

    • 1

    • 2

    • 3

    Correct Answer
    A. 1
  • 7. 
    Does this structure play any role in CSF production? - ProProfs

    Does this structure play any role in CSF production?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    yes, this is part of the choroid plexus.

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  • 8. 

    The following are all examples of ___________ ____________:  astrocytes, schwann cells, microglial cells, oligodendrocytes & capsular (satellite cells)

    • Cells in the PNS

    • Neuroglia or glial cells

    • Cells found in the cerebral cortex only

    • Cells found in the ventral horn

    Correct Answer
    A. Neuroglia or glial cells
    Explanation
    These are the supporting cells of the nervous system.

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  • 9. 

    If the nerve cell body is damaged can the cell regenerate?

    • Yes

    • No

    Correct Answer
    A. No
    Explanation
    It can regenerate if the damage is to the axon.

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  • 10. 

    What structure is normally filled with euchromatin?

    • Nucleus

    • Axon

    • Dendrite

    • Hillock

    Correct Answer
    A. Nucleus
  • 11. 

    Do axons contain nissl bodies and golgi bodies?

    • Yes

    • No

    Correct Answer
    A. No
    Explanation
    But they do contain mitochondria, microfilaments and microtubules.

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  • 12. 

    Do groupings of cell bodies called "nuclei" in the CNS have any anatomical conections?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    they are topographical

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  • 13. 
    Is this cell type involved in the formation of myelin, or maintenance of myelin, or both in the CNS.? - ProProfs

    Is this cell type involved in the formation of myelin, or maintenance of myelin, or both in the CNS.?

    • Formation

    • Maintenance

    • Both

    • None of the above

    Correct Answer
    A. Both
  • 14. 

    What cell type lines the ventricles of the brain?

    • Microglial cells

    • Epindymal cells

    • Neuroepithelial cells

    • Astroglial cells

    Correct Answer
    A. Epindymal cells
    Explanation
    Read explanation for question 24 for a full explanation.

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  • 15. 

    ___________ neurons are located in the retina, olfactory epithelium and form the ganglia of vestibulocochlear nerve 

    • Bipolar

    • Unipolar

    • Psuedounipolar

    • Multipolar

    Correct Answer
    A. Bipolar
  • 16. 

    What is the most common type of neuron?

    • Unipolar

    • Bipolar

    • Psuedouipolar

    • Multipolar

    Correct Answer
    A. Multipolar
  • 17. 
    Are the purkinje cells shown here the same purkinje cells that are found in the heart? - ProProfs

    Are the purkinje cells shown here the same purkinje cells that are found in the heart?

    • Yes

    • No

    Correct Answer
    A. No
  • 18. 
    Of the four neuroglial cells,  which cell type (shown below) is phagocytic and is of mesodermal origin? - ProProfs

    Of the four neuroglial cells,  which cell type (shown below) is phagocytic and is of mesodermal origin?

    • Astrocytes

    • Epindymal cells

    • Oligodendrocytes

    • Microglial cells

    Correct Answer
    A. Microglial cells
  • 19. 
    What is layer no 4? For the correct sequence for all the layers please read the explanation for the answer that is included. - ProProfs

    What is layer no 4? For the correct sequence for all the layers please read the explanation for the answer that is included.

    • Internal pyrimidal layer

    • Internal granular layer

    • Multiform layer

    • Molecular layer

    Correct Answer
    A. Internal granular layer
    Explanation
    1. Molecular layer 2. external granular layer 3.external pyramidal layer 4. internal granular layer 5. internal pyramidal layer 6. multiform layer

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  • 20. 

    Astrocyte processes terminate as "end feet" near blood vessels and at the _______ _________ of the CNS.

    • Most medial

    • External surface

    • Most caudal

    • Unused portion

    Correct Answer
    A. External surface
  • 21. 
    Where would you find this structure? - ProProfs

    Where would you find this structure?

    • In the PNS, this is a ganglion

    • In the CNS, this is a ganglion

    Correct Answer
    A. In the PNS, this is a ganglion
  • 22. 

    What is the metabolic center of the neuron?

    • Nucleus

    • Nucleolus

    • Perikaryon

    • Axon

    • Hillock

    Correct Answer
    A. Perikaryon
  • 23. 

    In the CNS, myelin, a lipoprotein is produced as an elaboration of:-

    • Multiple schwann cell aggregations

    • Microglial and astroglial aggregations

    • There is no myelination in the CNS

    • Oligodendrocyte plasmalema

    Correct Answer
    A. Oligodendrocyte plasmalema
  • 24. 
    Is this taken from the cerebral cortex or cerebellar cortex? - ProProfs

    Is this taken from the cerebral cortex or cerebellar cortex?

    • Cerebral

    • Cerebellar

    Correct Answer
    A. Cerebellar
  • 25. 
    What is layer no 5? - ProProfs

    What is layer no 5?

    • Internal pyrimidal layer

    • Internal granular layer

    • Multiform layer

    • External granular layer

    • Molecular layer

    Correct Answer
    A. Internal pyrimidal layer
  • 26. 
    What is layer no 2? - ProProfs

    What is layer no 2?

    • External pyrimidal layer

    • External granular layer

    • Internal pyrimidal layer

    • Internal granular layer

    • Multiform layer

    Correct Answer
    A. External granular layer
  • 27. 

    Are astrocytes involved in removing neurotransmitters from synaptic clefts?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    They are also involved in regulation of electrolyte balance in the CNS and for producing trophic factors necessary for neuronal survival.

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  • 28. 

    What are the two types of astroglial cells: Check the two that apply.

    • Protoplasmic astrocytes in the gray matter

    • Protoplasmic astrocytes in the white matter

    • Fibrous astrocytes in the gray matter

    • Fibrous astrocytes in the white matter

    Correct Answer(s)
    A. Protoplasmic astrocytes in the gray matter
    A. Fibrous astrocytes in the white matter
  • 29. 
    Name the structure. - ProProfs

    Name the structure.

    • Pons

    • Open medulla

    • Closed medulla

    • Midbrain

    • Cerebellum

    Correct Answer
    A. Open medulla
    Explanation
    The open medulla opens up into the 4th ventrincle. Note the sulcus limitans that separates the alar plate from the basal plate. The alar plate is the light area next to the opening and the basal plate is more medial and stains darker. The alar plate contains the nuclei.

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  • 30. 
    This is a cross section of the cerebral cortex. What is layer no 1? - ProProfs

    This is a cross section of the cerebral cortex. What is layer no 1?

    • External pyrimidal layer

    • External granular layer

    • Molecular layer

    • Multiform layer

    • Internal pyrimidal layer

    Correct Answer
    A. Molecular layer
  • 31. 
    This is the back part of which structure? - ProProfs

    This is the back part of which structure?

    • Pons

    • Medulla

    • Midbrain

    Correct Answer
    A. Pons
    Explanation
    the opening is the 4th ventricle.

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  • 32. 

    In the CNS, glial cells are divided into how many types?

    • 1

    • 2

    • 3

    • 4

    • 5

    Correct Answer
    A. 4
    Explanation
    These include astroglia, microglia, oligodendrocytes and epindymal cells.

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  • 33. 

    Do dendrites also contain nissl bodies and mitochondria?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    Yes, they also contain microtubules and microfilaments.

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  • 34. 

    In the CNS oligondendrocytes send out many processes from the cell body, each of which is capable of myelinating how many segments of myelin around an axon?

    • 0

    • 1

    • 2

    • 3

    Correct Answer
    A. 1
    Explanation
    One oligodendrocyte forms myelin around a variable number of axons - up to 40 or 50.

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  • 35. 

    A tract is a group of axons. Do all these axons have to have the same origin, termination and course. Do they all have to transmit the same information?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    this is the definition of a tract.

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  • 36. 

    In the CNS and PNS what separates and aggregrates neurons?

    • Astrocytes

    • Glial cells

    • Myelin fibers

    • Gyri

    Correct Answer
    A. Glial cells
  • 37. 

    Are there any cell bodies in white matter?

    • Yes

    • No

    Correct Answer
    A. Yes
    Explanation
    Your will find cell bodies of oligodendrocytes and astrocytes.

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  • 38. 
    These cells are involved in selectively isolating what areas between nerve cells? - ProProfs

    These cells are involved in selectively isolating what areas between nerve cells?

    • Areas where there is no myelination

    • Areas where the blod brain barrier does not exist

    • Areas where synaptic exchanges occur

    • Areas where several neuroglia congregate

    Correct Answer
    A. Areas where synaptic exchanges occur
    Explanation
    They also have supportive, reparative and nutritive roles.

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  • 39. 
    Epindymal cells (shown below) are derived from:- - ProProfs

    Epindymal cells (shown below) are derived from:-

    • Neural crest cells

    • Cells lining the neural tube

    • Cells from the cerebral cortex

    • Cells derived from the ectoderm

    Correct Answer
    A. Cells lining the neural tube
    Explanation
    They form an epithelial sheet that covers the internal cavities such as the ventricular system of the brain and spinal cord.

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  • 40. 

    After CNS injury what cells are involved in scar formation?

    • Astrocytes

    • Oligodendrocytes

    • Epindymal cells

    • Microglial cells

    Correct Answer
    A. Astrocytes
  • 41. 

    What is the principle cell found in sensory ganglia?

    • Bipolar

    • Unipolar

    • Pseudounipolar

    • Multipolar

    Correct Answer
    A. Pseudounipolar
    Explanation
    This cell has one process that comes from the cell body that bifurcates forming a T-shape.

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  • 42. 
    Name the structure - ProProfs

    Name the structure

    • Pons

    • Open medulla

    • Closed medulla

    • Midbrain

    • Cerebellum

    Correct Answer
    A. Closed medulla
    Explanation
    AKA the caudal medulla. The closed medualla has the spinal canal in the middle of it.

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  • 43. 

    A series of neurons designed to cary a specific type of information from one side to the other is known as a:

    • Tract

    • Pyramid

    • Highway

    • Pathway

    • Bundle

    Correct Answer
    A. Pathway
    Explanation
    Remember more than one neuron. This is different from a tract in which it was only one neuron.

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  • 44. 
    Do epindymal cells produce CSF or are they responsible for reabsorption of CSF? - ProProfs

    Do epindymal cells produce CSF or are they responsible for reabsorption of CSF?

    • They produce CSF

    • They reabsorb CSF

    • They produce and reabsorb CSF

    • They do neither

    Correct Answer
    A. They produce CSF
    Explanation
    The invaginated folds of epyndimal like epithelial cells are responsible for the production of CSF.

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  • 45. 

    What is the opening in the middle of the last structure?

    • 4th ventricle

    • Cerebral aqueduct

    • Foramen magnum

    Correct Answer
    A. Cerebral aqueduct
  • 46. 

    Which of the following are central "gray regions" in which you will find functional groupings of cells bodies called "nuclei"? Check all that apply.

    • Medulla

    • Gray regions of the spinal cord

    • Cerebellar cortex

    • Cerebral cortex

    Correct Answer(s)
    A. Medulla
    A. Gray regions of the spinal cord
    A. Cerebellar cortex
    A. Cerebral cortex
  • 47. 

    White matter is arranged in tracts called:- (check all that apply.)

    • Bundles

    • Fasciculli

    • Lemnisci

    • Pyramids

    • Nuclei

    Correct Answer(s)
    A. Fasciculli
    A. Lemnisci
  • 48. 
    What is the protective covering formed by astrocytes around the spinal cord and brain called? Check all that apply. - ProProfs

    What is the protective covering formed by astrocytes around the spinal cord and brain called? Check all that apply.

    • Internal limiting membrane

    • External limiting membrane

    • Basement mebrane

    • Glial membrane

    Correct Answer(s)
    A. External limiting membrane
    A. Glial membrane

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  • Jul 12, 2022
    Quiz Edited by
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