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प्रश्न
Define the following:
Cyton
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उत्तर
Cyton - It is an oval, angular, polygonal or stellate body which contains a large central nucleus.
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संबंधित प्रश्न
Mention the exact location of the Islets of Langerhans
The insulating sheath covering the neural axon is called.
During a street fight between two individuals, mention the effects on the following organs by the autonomous nervous system, in the table given below : (one has been for you as an example).
| Organ | Sympathetic System | Parasympathetic System |
| e.g. Lungs | Dilates bronchi and bronchioles | Constricts bronchi and bronchioles |
| 1. Heart | ||
| 2. Pupil | ||
| 3. Salivary gland |
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 |
Name the following:
Nervous system including brain and spinal cord.
Explain the following term :
Autonomic nervous system
The Centre for the sense of smell is ______
The number of cranial and spinal nerves in a human being are respectively ______.
Write full form of the following abbreviation:
PNS
Two hungry boys (A and B) enter a restaurant and see the menu. Boy B starts salivating but not A. Explain the reason for this difference.
