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प्रश्न
State whether the following is simple reflex, conditioned reflex or neither of the two:
Lifting up a book: …………………..
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उत्तर
Conditioned
संबंधित प्रश्न
Which of the following are cerebral reflexes?
(i) a person pulls away his hand on touching a hot object
(ii) a person spits out immediately when a fly enters his mouth while talking
(iii) A person walking bare foot lifts his foot at once on stepping on to a nail
(iv) A person's pupil contracts at once in the presence of bright light
(a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (ii) and (iv)
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
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?
Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.
List in tabular form two differences between reflex action and walking.
Explain the following term :
Conditioned reflex
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
Which of the following is an example of unconditioned reflex?
The reflex arc which is made up of one sensory and one motor neuron is ______
Which of the following is not involved in Knee-jerk reflex?
