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प्रश्न
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sneezing
विकल्प
Simple reflexes
Conditioned reflexes
None of the above
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उत्तर
Simple reflexes
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संबंधित प्रश्न
How do we detect the smell of an agarbatti (incense stick)?
Name one gustatory receptor and one olfactory receptor present in human beings.
State one function each of cerebellum and pons.
Explain the difference between of the following pair of terms :
receptor and effector
A cylindrical structure P in our body begins in continuation with medulla and extends downwards. It is enclosed in a bony cage Q and surrounded by membranes R. As many as x pairs of nerves arise from the structure P. The structure P is involved in the reflex actions of our body and conduction of nerve impulses to and from another organ S of our body with which it forms CNS.
(a) Name the structure P.
(b) Name (i) bony cage Q, and (ii) membranes R.
(c) How much is x?
(d) Name the organs S.
(e) What are the reflexes involving structure P only known as?
Write down the following activities in the correct order for a simple reflex arc:
(a) impulse travels in the motor fibre
(b) impulse travels in the sensory fibre
(c) effector organ stimulated
(d) impulse crosses the synapse
Explain the mechanism of reflex action with the help of a suitable diagram.
Mention, if the following statement is True or False
Reflex action involves brain
Mention, if the following statement is True or False
A reflex action is a spontaneous response to a stimulus.
Complete the following sentence with appropriate Word
A reflex arc in man is best described as movement of stimuli from:
