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प्रश्न
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?
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उत्तर
The smell of food is a stimulus.
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संबंधित प्रश्न
Name one gustatory receptor and one olfactory receptor present in human beings.
Name the most important part of the human brain.
Which part of the eye contains cells which are sensitive to light?
Give three examples of reflex actions.
State whether coughing is a voluntary action or reflex action.
What are the various sense organs in our body?
Explain the difference between of the following pair of terms :
receptor and effector
Define reflex arc. Give the flow chart of a spinal reflex arc.
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)
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
What is a reflex action?
Give one example of a conditioned reflex in your own life.
Reflex action is controlled by the
State whether the following is
Blinking
Which of the following is not an involuntary action?
Which of the following is not involved in Knee-jerk reflex?
If after cutting through dorsal root of a spinal nerve of a mammal, the associated receptor in skin was stimulated the animal would ______.
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
