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प्रश्न
Which of the following is not a natural reflex action?
विकल्प
Knee-jerk
Blinking of eyes due to strong light
Salivation at the sight of food
Sneezing when any irritant enters the nose
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उत्तर
Salivation at the sight of food
Explanation:
Salivation at the sight of food is a conditioned (learned) reflex that depends on past experience. The other options are natural (inborn) reflexes present since birth.
संबंधित प्रश्न
Name the most important part of the human brain.
Our ______ system allows us to react to our surroundings. Information from receptors passes along ______ neurons to our brain. Our brain sends impulses along ______ neurons to our muscles.
Give the flow chart of a spinal reflex arc.
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
State whether the following is simple reflex, conditioned reflex or neither of the two:
Lifting up a book: …………………..
List in tabular form three distinguishing features between cerebrum and cerebellum.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Lifting up a book
What type of reflex is the following?
Knitting and swimming
Mention, if the following statement is True or False
Reflex action involves brain
