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प्रश्न
Answer the following questions briefly:
Explain how the human eye adapts itself to bright light and dim light.
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उत्तर
The amount of light intering the eye is controlled by muscles of iris. The pupil become layer in less light to allow more light to goin and in bright light it consiricts to restrict the amount of light going in.
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संबंधित प्रश्न
What are the short fibres of a neuron known as?
The life processes in humans are controlled and regulated by :
(a) reproductive and endocrine systems
(b) respiratory and nervous systems
(c) endocrine and digestive systems
(d) nervous and endocrine systems
Write one word in the space provided to complete the second pair of the related words pertaining to nervous system.
Memory : cerebrum : : breathing :
Balance : cerebellum : : reasoning :
State whether the following statement is true (T) or false (F):
Retina is present on the outer surface of the eye.
Choose the correct answer.
Synapse is a close proximity of _______________
Give Technical Term:
The find cytoplasmic processes of the cell body of a neuron.
The below diagram is the surface of the tongue showing the taste zone.
(i) Label the parts 1-4.
(ii) Where are the receptors for sensations of taste are located?
(iii) Why do people suffering from cold often complain that they cannot taste their food?
Short answer question
Rakesh got hurt on his head when he fell down from his motorbike. Which inner membranes must have protected his brain? What other roles do they have to play?
Hearing is controlled by ______
How is an electric impulse created in human nervous system?
