Test
Histology- Nervous Tissue 1st Year PMU
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Preguntas del test (25)
1By 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]- ANissl Substance
2Under 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]- AMyelinated Nerve Fiber
3Under 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]- AFibrous Astrocytes
4Under 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]- AMyelinated Nerve Fibers
5The neurons show regeneration ability
- AVerdadero
- BFalso
6The neuroglial cells conduct a nervous impulse
- AVerdadero
- BFalso
7By light microscope observation the Nissl substance is visible in the axons:
- AVerdadero
- BFalso
8Only one axon takes part in the formation of the myelinated nerve fibers
- AVerdadero
- BFalso
9Only one axon takes part in the formation of the nonmyelinated nerve fibers:
- AVerdadero
- BFalso
10The bodies (perikaryons) of the neurons are localized in the white matter:
- AVerdadero
- BFalso
11What embryonic sheet derive the neurons from:
- AEctoblast
- BEndoblast
- CMesoblast
- DMesenchyme
12What embryonic sheet derive the macroglia from:
- AEctoblast
- BEndoblast
- CMesoblast
- DMesenchyme
13What embryonic sheet derive the microglia from:
- AEctoblast
- BEndoblast
- CMesoblast
- DMesenchyme
14The pseudounipolar neurons consist of:
- ABody, axon, dendrite
- BBody, axon, dendrites
- CBody and axon
- DBody and dendrite
15The mutipolar neurons consist of:
- ABody, axon, dendrite
- BBody, axon, dendrites
- CBody and axon
- DBody and dendrite
16Which of the following elements of the cytoskeleton are well developed in the neurons:
- ATonofibrils
- BMyofibrils
- CNeurofibrils
- DMicrofibrils
17Which of the following types of neuroglial cells are localized in the grey matter:
- AFibrous astrocytes
- BProtoplasmic astrocytes
- CEpendymocytes
- DSchawann cells
18The sheath of the nerve fibers in the peripheral nervous system is built from:
- AAstrocytes
- BOligodendrocytes
- CEpendymocytes
- DSchawann cells
19The sheath of the nerve fibers in the central nervous system (white matter) is built from:
- AAstrocytes
- BOligodendrocytes
- CEpendymocytes
- DSchawann cells
20Which of the following neuroglial cells take part in the production of the cerebro-spinal fluid
- AAstrocytes
- BOligodendrocytes
- CEpendymocytes
- DSchawann cells
21Which of the following characteristics are specific for the neurons
- ACollect stimuli and transform them into nervous impulse
- BRegeneration ability
- CSynthesize and release neurotransmitters
- DSupporting and protective functions
- EPresence of different in function processes
22Which of the following characteristics are specific for the neuroglial cells:
- ACollect stimuli and transform them into nervous impulse
- BRegeneration ability
- CSynthesize and release neurotransmitters
- DSupporting and protective functions
- EPresence of different in function processes
23Which of the following elements are visible in the neurons by light microscopic observation
- ABig in size, pale stained nucleus
- BEosinophilic cytoplasm
- CNissl substance
- DTonofibrils
- ENeurofibrils
24The nonmyelinated nerve fibers consist of:
- AAxon
- BMyelin sheath
- CSchwann sheath
- DEndoneurium
- EMicroglia
25The myelinated nerve fibers consist of:
- AAxon
- BMyelin sheath
- CSchwann sheath
- DEndoneurium
- EMicroglia
Información
- Descripción
- CHE - Nervous Tissue
- Autor
- Med Student
- Idioma
- English
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