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प्रश्न
What are the two main communications systems in an animal's body?
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उत्तर
The nervous system and the endocrine system are the two main communication systems in an animal body.
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संबंधित प्रश्न
Draw a flow chart to show the classification of the nervous system into various parts.
What is the function of our nervous system?
How are the messages carried across a synapse? Explain with the help of a labelled diagram.
The organ A which is located inside the skull of our body is protected by a bony shell B. It is surrounded by three layers membranes C. The spaces between these layers are filled with a liquid D which protects organ A from mechanical shocks. Organ A in combination with another organ E makes up the central nervous system.
(a) What is organ A?
(b) What are B, C and D?
(c) Name the organ E.
(d) While walking barefoot, 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?
(e) If we step out from a darkened room into bright sunlight, 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:
Sense organs have special cells called ____________ for picking up information and transmitting it to the nerves.
Name the following:
Flap like structure of outer ear.
Write one word in the space provided to complete the second pair of the related words pertaining to the nervous system.
Memory: cerebrum:: breathing:
Balance: cerebellum:: reasoning:
Briefly describe the structure of the cerebrum in the human brain, and mention its functions.
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 |
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 Reason:
A person after consuming alcohol walks clumsily.
Explain the Term: Ganglion
Explain the Term: Natural reflex
Name the following:
Unit of the nervous system is
Mention, if the following statement is True or False
A nerve impulse passes from one neuron to another across a synapse.
Describe the functional areas of Cerebrum.
Which of the following statements is TRUE for Wernicke's area?
A deep longitudinal fissure divides the telencephalon into ______.
Destruction of the anterior horn cells of the spinal cord would result in loss of ______.
