Advertisements
Advertisements
प्रश्न
What is a reflex action?
What is meant by Reflex action?
Advertisements
उत्तर
Reflex action is a sudden, spontaneous, automatic, involuntary response to a stimulus.
APPEARS IN
संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
With the help of a neat and labelled diagram, describe reflex arc.
State one function each of cerebellum and pons.
Which part of the eye contains cells which are sensitive to light?
Give the functions of medulla.
What is a reflex action? Explain with the help of an example.
Which of the following are cerebral reflexes?
(i) a person pulls away his hand on touching a hot object
(ii) a person spits out immediately when a fly enters his mouth while talking
(iii) A person walking bare foot lifts his foot at once on stepping on to a nail
(iv) A person's pupil contracts at once in the presence of bright light
(a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (ii) and (iv)
Which of the following statements is correct about receptors?
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Stimulus : Receptor :: Impulse : ______.
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:
Blushing: ……………….
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
What is the difference between reflex action and voluntary action?
State whether the following is simple reflex, conditioned reflex or neither of the two.
Blushing
State whether the following is
Cleaning
In reflex action, the reflex arc is formed by ______
Reflex arc allows the rapid response of the body to a stimulus.
