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Question
Give Reason:
The hand automatically shows the direction to turn a cycle without thinking.
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Solution
Because of the conditioned reflex which we learn by experience and gradually respond to it unconsciously.
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RELATED QUESTIONS
Which part of the eye contains cells which are sensitive to light?
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
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
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?
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
State whether the following is
Salivation when food is put in the mouth.
A change in the environment that causes an animal to react is called ______.
Reflex arc allows the rapid response of the body to a stimulus.
Which one of the following is not a simple reflex?
