Tag: structure of neuron
Questions Related to structure of neuron
Which cells do not form layer and remain structurally separate?
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Epithelial cells
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Muscle cells
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Nerve cells
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Gland cells
Which of the following is the part of a neuron?
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Axon
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Cell body
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Dendrite
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All of the above
The primary components of the neuron are the soma (cell body), the axon (a long slender projection that conducts electrical impulses away from the cell body), dendrites (tree-like structures that receive messages from other neurons), and synapses (specialized junctions between neurons).
The bulbous structure present at the terminal end of an axon is_______________
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Synaptic vesicle
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Synaptic knob
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Dendrites
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Schwann cell
A. Synaptic vesicle store various neurotransmitters that are released at the synapse.
B. Synaptic knob-The bulbous structure present at the terminal end of an axon.
c. Dendrites-also dendrons, are branched protoplasmic extensions of a nerve cell that propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.
D. Schwann cell -also called neurilemma cell, any of the cells in the peripheral nervous system that produce the myelin sheath around neuronal axons.
So, the correct option is 'Synaptic Knob'.
Name the part of the neuron, where information is acquired.
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Axon
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Dendrites
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Synapse
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Schwann cells
Name the part of neuron through which information travels as an electrical impulses.
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Dendrites
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Axon
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Schwann cells
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Sypase
Centrosome includes a pair of centrioles that help in cell division by spindle formation. The non-dividing cells in human are
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Chondrocytes
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Epithelial cells
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Neurons
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Neuroglial cells
Neurilemma is name for :
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Plasmamembrane of axon
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Coating formed by myelin sheath
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Covering of schwann cells
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Connective tissue covering of nerve fasciculus
Neurilemma is the outermost covering of Schwann cells that surrounds the axon of the neuron. It is also known as neurolemma.
Which one of the following pairs of structures distinguishes a nerve cell from other cell types?
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Vacuoles and fibres
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Flagellum and medullary sheath
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Nucleus and mitochondria
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Perikaryon and dendrites
The vacuole is membrane bound organelle present in all plant and fungal cells and some protist, animal and bacterial cells. The flagellum is an appendage, that protrudes from the cell body of certain prokaryotic and some eukaryotic cells. Nucleus and mitochondria are membrane bound organelles present in almost all cells. Perikaryon, also called cyton is the bulbous end of a neuron containing cell nucleus. Dendrites are the short cytoplasmic processes of the cell body of the neuron, which receives stimulus from other neurons.
So, the correct answer is option D.
In peripheral nervous system, the nerves are made up exclusively from the
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Dendrons
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Axons
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Nodes of Ranvier
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Nissl body
Nerves are made up of bundles of the axons of nerve cells. A nerve is an enclosed, cable-like bundle of axons (long, slender projections of neurons) in the peripheral nervous system.
'Nodes of Ranvier' are found in
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Brain
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Heart
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Axon
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Eye
Nodes of Ranvier are periodic gaps in the insulating sheath (myelin) on the axon of certain neurons, that serves to facilitate the rapid conduction of nerve impulses.