Histology- Nervous Tissue 1st Year PMU

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Sole C
Created by Sole C almost 5 years ago
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Description

CHE - Nervous Tissue

Resource summary

Question 1

Question
By light microscopic observation of spinal cord on transverse sections stained with toluidinblue, multipolar neurons with cytoplasm filled with blue granules in the anterior horns are observed. What is the name of these structures and the appearance of which organelle are they? Ans: [blank_start]Nissl Substance[blank_end]
Answer
  • Nissl Substance

Question 2

Question
Under electron microscope, a transverse section of cylindrical in shape structure with dark and light lines arranged in concentric manner is observed. Peripherally, a part of cytoplasm with mitochondria and nucleus is visible. What is the name of the described structure? Ans: [blank_start]Myelinated Nerve Fiber[blank_end]
Answer
  • Myelinated Nerve Fiber

Question 3

Question
Under light microscope, on sections from cerebrum stained with AuCl2 star-shaped neurons with numerous long non-branching processes localized in the white matter are observed. Some of the processes attach to the blood vessels wall. What is the name of these cells and what is their function? Ans: [blank_start]Fibrous Astrocytes[blank_end]
Answer
  • Fibrous Astrocytes

Question 4

Question
Under light microscope. on sections stained with 0s04 bundles of black colored fiber-like structures appear. There are gaps in their outer sheath and it is seen to be an incomplete or interrupted cylinder. Radial clefts or fissures, extending through the thickness of the sheath are also visible. What is the name of the described structures? Ans: [blank_start]Myelinated Nerve Fibers[blank_end]
Answer
  • Myelinated Nerve Fibers

Question 5

Question
The neurons show regeneration ability
Answer
  • True
  • False

Question 6

Question
The neuroglial cells conduct a nervous impulse
Answer
  • True
  • False

Question 7

Question
By light microscope observation the Nissl substance is visible in the axons:
Answer
  • True
  • False

Question 8

Question
Only one axon takes part in the formation of the myelinated nerve fibers
Answer
  • True
  • False

Question 9

Question
Only one axon takes part in the formation of the nonmyelinated nerve fibers:
Answer
  • True
  • False

Question 10

Question
The bodies (perikaryons) of the neurons are localized in the white matter:
Answer
  • True
  • False

Question 11

Question
What embryonic sheet derive the neurons from:
Answer
  • Ectoblast
  • Endoblast
  • Mesoblast
  • Mesenchyme

Question 12

Question
What embryonic sheet derive the macroglia from:
Answer
  • Ectoblast
  • Endoblast
  • Mesoblast
  • Mesenchyme

Question 13

Question
What embryonic sheet derive the microglia from:
Answer
  • Ectoblast
  • Endoblast
  • Mesoblast
  • Mesenchyme

Question 14

Question
The pseudounipolar neurons consist of:
Answer
  • Body, axon, dendrite
  • Body, axon, dendrites
  • Body and axon
  • Body and dendrite

Question 15

Question
The mutipolar neurons consist of:
Answer
  • Body, axon, dendrite
  • Body, axon, dendrites
  • Body and axon
  • Body and dendrite

Question 16

Question
Which of the following elements of the cytoskeleton are well developed in the neurons:
Answer
  • Tonofibrils
  • Myofibrils
  • Neurofibrils
  • Microfibrils

Question 17

Question
Which of the following types of neuroglial cells are localized in the grey matter:
Answer
  • Fibrous astrocytes
  • Protoplasmic astrocytes
  • Ependymocytes
  • Schawann cells

Question 18

Question
The sheath of the nerve fibers in the peripheral nervous system is built from:
Answer
  • Astrocytes
  • Oligodendrocytes
  • Ependymocytes
  • Schawann cells

Question 19

Question
The sheath of the nerve fibers in the central nervous system (white matter) is built from:
Answer
  • Astrocytes
  • Oligodendrocytes
  • Ependymocytes
  • Schawann cells

Question 20

Question
Which of the following neuroglial cells take part in the production of the cerebro-spinal fluid
Answer
  • Astrocytes
  • Oligodendrocytes
  • Ependymocytes
  • Schawann cells

Question 21

Question
Which of the following characteristics are specific for the neurons
Answer
  • Collect stimuli and transform them into nervous impulse
  • Regeneration ability
  • Synthesize and release neurotransmitters
  • Supporting and protective functions
  • Presence of different in function processes

Question 22

Question
Which of the following characteristics are specific for the neuroglial cells:
Answer
  • Collect stimuli and transform them into nervous impulse
  • Regeneration ability
  • Synthesize and release neurotransmitters
  • Supporting and protective functions
  • Presence of different in function processes

Question 23

Question
Which of the following elements are visible in the neurons by light microscopic observation
Answer
  • Big in size, pale stained nucleus
  • Eosinophilic cytoplasm
  • Nissl substance
  • Tonofibrils
  • Neurofibrils

Question 24

Question
The nonmyelinated nerve fibers consist of:
Answer
  • Axon
  • Myelin sheath
  • Schwann sheath
  • Endoneurium
  • Microglia

Question 25

Question
The myelinated nerve fibers consist of:
Answer
  • Axon
  • Myelin sheath
  • Schwann sheath
  • Endoneurium
  • Microglia
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