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प्रश्न
Label the parts of a neuron in the given figure.
उत्तर
- Dendrite
- Cell-body
- Schwann cell
- Axon
APPEARS IN
संबंधित प्रश्न
Distinguish between Impulse conduction in a myelinated nerve fibre and unmyelinated nerve fibre
Marine fish when placed in tap water bursts because of:
A. Endosmosis
B. Exosmosis
C. Diffusion
D. Plasmolysis
Mention the exact location of the Lacrimal gland
State whether the following statement is true (T) or false (F).
A double chain of ganglia, one on each side of the nerve cord belongs to the spinal cord.
Answer the following questions briefly:
How are the cytons and axons placed in the brain and the spinal cord?
Write whether the following is true or false:
Axon of one neuron communicates with other nerve cell through synapse.
Write whether the following is true or false:
Neurotransmitters are either broken down or reabsorbed after they have conducted an impulse.
Explain the following term :
Motor nerve
Differentiate between:
Rods and Cones.
Write a short note.
Autonomic Nervous System
When the potential across the axon membrane is more negative than the normal resting potential, the neuron is said to be in a state of ______.
The action potential occurs in response to a threshold stimulus; but not at sub-threshold stimuli. What is the name of the principle involved?
At the end of repolarization, the nerve membrane gets hyperpolarized. Why?
______ carries the impulse towards the cell body.
How nerve impulses are transferred from one neuron to the next neuron?
Dendrons are the longest fibres that conduct impulses away from the cell body.
Which of the following statements about transmission of nerve impulse is incorrect?
Rearrange the following in the correct order of involvement in electrical impulse movement-
Synaptic knob, dendrites, cell body, Axon terminal, Axon
Write one word for the following:
wave of electrical disturbance that sweeps over the nerve cell.
