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प्रश्न
What is voluntary nervous system? Explain the working of the voluntary nervous system with an example.
उत्तर
Voluntary nervous system is the part of the nervous system that is responsible for carrying motor and sensory information both to and from the central nervous system (CNS). It is associated with voluntary control of body movements through the actions of skeletal muscles. It is also responsible for sensing external stimuli, which helps the body to remain in touch with its surroundings.
For example, when the skin is penetrated by a sharp object like a pin, the pain is detected by the pain receptor. The nerve impulses are generated in the sensory nerves and conducted to the brain. The brain sends instructions to the skeletal muscles (effector muscle) through the motor nerves to remove the pin. Then the muscle acts accordingly and removes the pin.
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संबंधित प्रश्न
State whether the following statement is true (T) or false (F):
The largest part of the brain is the cerebrum.
Match the terms of column I with those of column ll
| Column l | Column ll |
| (i) Lens | (a) Adjustment of light rays |
| (ii) Lachrymal gland | (b) Vision |
| (iii) Olfactory epithelium | (c) Secretion of tear |
| (iv) Cochlea | (d) Balance of the body |
| (v) Semicircular canal | (e) Hearing |
| (vi) Eyes | (f) Smell |
Give Technical Terms:
The number of cranial and spinal nerves in man.
Which cells of PNS secrete myelin sheath around the nerves?
Loss of function in which nerve would result in paralysis of muscles of mastication?
Which of the following parts is joined by the corpus callosum?
Nervous system is well developed in human and is composed of ______ or ______.
What constitutes the central and peripheral nervous systems? How are the components of central nervous system protected?
Which of the following statement is correct about the node of Ranvier?
Think of situations where receptors do not work properly. What problems are likely to arise?
