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प्रश्न
Mention, if the following statement is True or False
A reflex action is a spontaneous response to a stimulus.
विकल्प
True
False
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उत्तर
False
Correct Statement: A reflex action is a spontaneous involuntary response to a stimulus.
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संबंधित प्रश्न
The contraction of pupil of the eye in the presence of bright light is an example of :
(a) Voluntary reflex
(b) Spinal reflex
(c) Cerebral reflex
(d) Adrenal reflex
P is a cell (or group of cells) in the human body which is sensitive to a particular type of stimulus and conveys the messages to CNS through nerves Q. On the other hand, R is a part of the human body which can respond to a stimulus according to the instructions sent from the CNS through nerves S.
(a) What is P? Name five organs which contain cells (or group of cells) like P.
(b) Name the nerves Q.
(c) What is R? Give two examples of R.
(d) Name nerves S.
(e) How do messages travel through the nerves Q and S?
Complete the following statement by choosing the correct alternative from the choice given in bracker:
Reflex action is controlled by
(i) brain (ii) spinal cord
(iii) autonomic (iii) peripheral nervous system
Give one example of a conditioned reflex in your own life.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
State whether the following is
Cleaning
In reflex action, the reflex arc is formed by ______
Give an example for conditioned reflexes.
What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.
Categorise the following under stimulus and response.
Seeing a green light turning into red at a road crossing before applying the brakes.
