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प्रश्न
Give one example of a conditioned reflex in your own life.
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उत्तर
Example of a conditioned reflex: Tying one's shoe lace.
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संबंधित प्रश्न
Name two parts of the body which contain receptors of chemical stimuli.
What is spinal cord?
One of the following controls the peristaltic movements of alimentary canal. This one is :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
When we touch a hot plate unknowingly, then this heat is sensed by a receptor P present in our fingers. The receptor triggers and impulse in neuron Q which transmits the message to an organ R which is a part of the central nervous system. Here the impulse is passed on to a neuron S which in turn passes it to a yet another neuron T. The neuron T passes the impulse to a tissue U in our arm. The tissue U then contracts and pulls our hand away from the hot plate.
(a) What is the name of (i) receptor P (ii) neuron Q, and (iii) organ R?
(b) What is (i) neuron S, and (ii) neuron T?
(c) Name the tissue U.
(d) What name is given to the phenomenon in which hand is pulled away quickly from the hot plate?
(e) Name the effector in this whole process.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
Give Reason:
The hand automatically shows the direction to turn a cycle without thinking.
Differentiate between Voluntary and involuntary actions.
Which of the following is not an involuntary action?
Why have reflex arcs evolved in animals?
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sneezing
