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Question
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
Options
True
False
Solution
True
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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.
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Reflex action is controlled by the
State whether the following is
Sneezing
State whether the following is simple reflex, conditioned reflex or neither of the two.
Blushing
What type of reflex is the following?
Formation of goose-pimples in cold weather.
Which of the following is an example of unconditioned reflex?
