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प्रश्न
Explain the divisions of the nervous system.
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उत्तर
The nervous system is divisible into three regions:
(i) Central nervous system: Includes brain and spinal cord.
(ii) Peripheral nervous system: Includes spinal and cranial nerves.
(iii) Autonomic nervous system: Includes the sympathetic and parasympathetic nerves.
संबंधित प्रश्न
Aqueous humour is present between the ______.
Why do you call the spinal cord and the brain as the central nervous system?
Given below are a few situations. What effective change will occur in the organ/body part mentioned and which part (sympathetic or parasympathetic) of the autonomic nervous system brings it about?
| Situation | Organ/body part | Change/action | Part of autonomic nervous system involved |
| 1. You have entered a dark room | Eye | ||
| 2. Your body is consuming lot of glucose while running a race | Liver | ||
| 3. You are chewing a tasty food | Salivary gland | ||
| 4. You are running a race | Adrenal gland | ||
| 5. You are retiring to bed for sleep | Heart | ||
| 6. You are shivering in intense cold | Body hairs |
Given below is the partially incomplete scheme of the components of peripheral nervous system. Fill up the blanks numbered (1)-(12):
Name the following:
Sympathetic and parasympathetic jointly forms.
Define the following:
Cyton
Choose the correct answer.
Auditory nerve is responsible for ____________
The Centre for the sense of smell is ______
Name the following:
Two parts of the autonomic nervous system
Write full form of the following abbreviation:
CNS
