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प्रश्न
What are the functions of the nervous system?
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उत्तर
The nervous system regulates, co-ordinates and links the activities of different organs and the entire organism, making it an integrated whole. It also brings about an adjustment between the organism and its environment.
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संबंधित प्रश्न
State the different types of neurons.
Name the three components of a neuron (or nerve cell).
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?
State whether the following statement is true (T) or false (F):
Each neuron consists of three parts called cell body, cyton, and axon.
Name the following:
The biological term given to the protective membranes of the brain.
Nervous and hormonal systems together perform the function of control and coordination in human beings. Justify this statement with the help of an example.
Complete the following sentence with appropriate word :
A nerve chain between a receptor and an effector organ is called _________.
Choose the Odd One Out:
Identify the lobe which has centre for visual functions.
All of the following are true for human brain, EXCEPT ______.
