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Question
Mention, if the following statement is True or False
A reflex action is a spontaneous response to a stimulus.
Options
True
False
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Solution
False
Correct Statement: A reflex action is a spontaneous involuntary response to a stimulus.
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RELATED QUESTIONS
Which of the following is not a natural reflex action?
A. Knee-jerk
B. Blinking of eyes due to strong light
C. Salivation at the sight of food
D. Sneezing when any irritant enters the nose
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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.
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(c) How much is x?
(d) Name the organs S.
(e) What are the reflexes involving structure P only known as?
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Lifting up a book: …………………..
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Boy B starts salivating but not A. Explain the reason for this difference.
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Categorise the following under stimulus and response.
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