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प्रश्न
Distinguish between the following pair of words:
Nervous system and hormonal system
फरक स्पष्ट करा
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उत्तर
| Nervous system | Hormonal system |
| (i) It co-ordinates the body through electrical impulses. | (i) It secretes hormones. |
| (ii) The nervous system controls muscle movement, senses, heartbeat, breathing, digestion, memory and speech | (ii) The endocrine system controls levels of glucose in the blood, hydration levels, heat productivity, sexual maturity, sperm and egg production and growth of cells and tissues. |
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संबंधित प्रश्न
The gap between two neurons is called a ______.
Electrical impulse travels in a neuron from:
| The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. The space between the membranes is filled with a liquid D which protects the organ A from mechanical shocks. The organ A in combination with another organ E makes up the central nervous system. |
- What is organ A?
- What are B, C and D?
- Name the organ E.
- While walking barefooted, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs, A or E, is directly involved in this action?
- If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involved in this action?
Fill in the blank:
The neurons carrying impulses from the brain to the muscles are called ..........................
Define the following:
Motor neuron:
Complete the following table by filling in the blank spaces.
| Structure | Function |
| Yellow Spot | |
| Transfers impulse from inner ear to brain | |
| Helps to change the focal length of the eye lens | |
| Spinal cord | |
| Oval window | |
| Dynamic equilibrium |
Choose the correct answer.
More than one foot long cells of the body are __________
Give Technical Term:
The chemical messenger by which the nerve impulse travels from one neuron to the other.
Complete the following sentence with appropriate Word
Neurilemma is:
Cavity enclosed by medulla oblongata of brain is ______.
