WorksheetsNT
Total questions: 50
Worksheet time: 25mins
What are the functions of microglial cells?
Barrier
Generation of neuronal impulse
Trophic
Protective
What are the embryonic sources of nerve tissue?
Mesenchyme
Neuroectoderm
Ventral mesoderm
Endoderm
Neural plate
What is the embryonic source of macroglia?
Neural tube
Mesenchyme
Endoderm
Neuroectoderm
What is the embryonic source of microglial cells?
Endoderm
Neuroectoderm
Neural crest
Monoblasts of red bone marrow
What organelles form the chromatophilic substance (Nissl's bodies) in cytoplasm of neurons?
Mitochondria
Lysosomes
Rough endoplasmic reticulum
Centrioles
What structures compose the neurofibrills?
Mitochondria
Lysosomes
Microtubules
Endoplasmic reticulum
Neurofilaments
What morphological type of neurons is the most numerous in mammals
Unipolar
Pseudounipolar
Multipola
Bipolar
What organelles do take part in axonal transport of substances in the neurons?
Mitochondria
Ribosomes.
Neurotubules
Golgi complex
Neurofilaments
The nerve cell has 5 processes. How many axons and dendrites it has?
dendrites and 2 axons
dendrites and 3 axons
dendrites and 1 axon
Cytoskeleton is destroyed by colchicine. What will be happened in cytoplasm of neurons?
Synthesis of proteins will depress
Golgi complex will disappear
Neurofibrills will disappear
The axonal transport will stopped
Neurotubules will be destroyed.
What is absent in axon?
Mitochondria
Vesicles
Basophilic substance
Microtubules
Structural components of nerve tissue
Nerve fibers
Ground substance
Neurons
Neuroglia
What structures form the basophilic substance (Nissl's bodies) of neuron's cytoplasm?
Microtubules
Golgi complex
Rough endoplasmic reticulum
Smooth endoplasmic reticulum
Ribosomes
What cells belong to the macroglia?
Oligodendrocytes
Large neurons of brain cortex
Astrocytes
Ependymal cells
Lemmocytes
What are the functions of astrocytes?
Barrier
Generation of nerve impulses.
Trophic
Supporting
Secretion
What glial cells resemble the simple columnar epithelium?
Ependymal cells
Protoplasmic
astrocytes
Oligodendrocytes.
Where are the ependymal cells localized?
Lining the brain ventricles and central canal of spinal cord
Surrounding brain's big neurons
Surrounding the nerve fibers
Surrounding the blood vessels
Where are the oligodendrocytes localized?
Around of the neuron's pericarions
Around of the neuron's processes
Cover the brain's ventricles and canals
Surround of brain's blood vessels
What are the functions of microglia?
Protective
Phagocytosis
Secretory
barrier
What structures of neuron conduct the nerve impulses?
Cell membrane
Neurofilaments
Endoplasmic reticulum
Microtubules
What are the embryonic sources of the nerve tissues?
Nerve tube
Nerve plate
Visceral layer of splanchnotom
Nerve placodes
What types of neurons of their neurotransmitter nature do you know?
Cholinergic
Aminergic
GABAergic
Peptidergic
Glucosergic
Each of the following statements concerning receptors is true, EXCEPT:
are terminal modifications of sensory neuron dendrites
are the motor nerve ending
if they contain only nerve fibers, they are free
if they contain glial cells, they are not free
-if they are enclosed by connective tissue capsule, they are encapsulated
What kinds of transроrt are in the processes of neurons?
Fast axonal anterograde
Fast neuronal
Slow axonal anterograde
Retrograde axonal
Dendritic
What cells secret the cerebrospinal fluid?
Olygodendrocytes
Ependymal cells of the vascular plexus of brain's ventricles
astrocytes
Motoneurons of spinal cord
What is the size of human neurons?
1-3 mkm
4-130 mkm
200-300 nm
More then 200 mkm
The following statements regarding the motor end plate are true, EXCEPT
contains acetylcholine as a neurotransmitter
is formed by the ending of a motor neuron axon
doesn't contain glial cells
exists on skeletal muscle fibres
What are the functions of axial cylinder of the nerve fiber?
Conduction of the nerve impulse
Provide the transport of substances
Generation of nerve impulse
Movement of neurocyte
What structures of nervous tissue form the nerve fibers?
Oligodendrocytes
Microglia
Processes of nerve cells
Microglia
Protoplasmic astrocytes
What structures form the myelin sheath of nerve fiber?
Cytoplasmic membrane of lemmocyte (Schwan's cell). -Perineurium
Proteins, which are transporting from the pericarions
Perineurium
Processes of astrocytes
What structures present in myelinated nerve fibers?
Nodes of Ranvier
Mesaxon
Cytoplasm and nuclei of Schwan's cells
Several processes of neurons
The following statements regarding dendrites are true, EXCEPT:
are numerous or singl
have spines
conduct impulses away the soma
have extensive arborizations
What structures contain the unmyelinated nerve fibers?
Myelin membrane
Only one axial cylinder
Several axial cylinders
Internodal segments
What type of glial cells play the main role in regeneration of nerve fibers?
Schwan's cells (lemmocytes)
Ependymocytes
Fibrous astrocytes
Protoplasmic astrocytes
The following statements regarding the regeneration of nervous tissue are true
neurons are unable to divide
glial cells can divide
the neuron processes of CNS can regenerate
the neuronal soma can regenerate after injury
The following statements regarding glial cells are true, EXCEPT
Central parts of nerve fibers
Neurons, which processes form the nerve fibers
Peripheral part of nerve fibers and nerve terminals
Schwan's cells
What are the clefts of myelin?
Thick part of myelin membrane
The cytoplasm of lemmocytes between of mesaxon's layers in myelin membrane
Nucleus of Schwan's cells
Internodal segments
To what group of nerve endings the Fater-Pachini corpuscles belong to?
Unincapsulated sensory nerve endings
Incapsulated sensory nerve endings
Free nerve endings
Secretor nerve endings
What mediator acts in the nerve-muscle synapse of skeletal muscle?
Acetylcholine
Dopamine
Glycine
Norepinephrine
The following statements regarding the node of Ranvier are true, EXCEPT
contains a Schwann cell nucleus
provides salutatory conduction of nervous impulses
lacks myelin
is the site between adjacent Schwann cells
What sensory neural ending accepts the pressure?
Fater-Pachini corpuscle
Free nervous ending.
Meisner's bodies
Krauze's corpuscule
What provide the direction of impulse conduction in synapses?
The direction of axonal transport
The localization of neurotubules and neurofilaments
The glial cells
The presence of receptors to mediators in postsynaptic membrane
What receptors accept the change of muscle fibers' length?
Muscle spindle
Fater-Pachini corpuscle
Meisner's bod
Free receptors
What types of neurons and their processes form the afferent neuronal endings?
Dendrites of sensory neurons
Dendrites of efferent neurons
Axons of associative neurons
Axons of afferent neurons.
What neuronal endings call effectors?
Neuromuscular spindle
Neuromuscular endings
Axodendritic synapses
Endings on glandular cells
What nerve endings call receptors?
Neuromuscular spindle
Neuromuscular synapses (motor plates)
Fater-Pachini corpuscle
Meisner's bodies
Nonfree endings
Where are the synaptic vesicles accumulating?
In presynaptic part of the synapses
In synaptic cleft
In presynaptic membrane
In postsynaptic part of the synapses
Each of the following statements concerning the synapses is true, EXCEPT
transfer impulses from one neuron to another
are chemical and electrical
may be excitatory and inhibitory
interact with stimuli and generate nervous impulses
What forms the presynaptic part of interneuron synapses?
Dendrite of the neuron
Axon of the neuron
Body of the neuron
Process of neuron
How is transmitter removing from the synaptic cleft?
Uptaking by proteins-transporters of presynaptic membrane
It is destroying by the enzymes of the postsynaptic membrane
It slowly exits by passive diffusion
It is absorbed the postsynaptic part of synapses
