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प्रश्न
Which one of the following is not a simple reflex?
पर्याय
Coughing
Blinking
Eating
Swallowing
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उत्तर
Eating
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संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
With the help of a neat and labelled diagram, describe reflex arc.
Give examples of unconditional reflexes
Explain the difference between of the following pair of terms :
cerebrum and cerebellum
Which of the following statements are true?
(i) sudden action in response to something in the environment is called reflex action
(ii) sensory neurons carry electrical signals from spinal cord to muscles in a reflex action
(iii) motor neurons carry signals from receptors to spinal cord in a reflex action
(iv) the pathway of transmitting signals from a receptor to a muscle is a reflex action
The olfactory receptors in humans are located in :
(a) eyes
(b) tongue
(c) ears
(d) nose
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?
Explain the mechanism of reflex action with the help of a suitable diagram.
List in tabular form three distinguishing features between cerebrum and cerebellum.
Categorise the following under stimulus and response.
Withdrawal of hand on touching a hot plate
