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प्रश्न
The olfactory receptors in humans are located in :
(a) eyes
(b) tongue
(c) ears
(d) nose
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उत्तर
(d) nose
The olfactory receptors which detect smell are located in the nose.
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संबंधित प्रश्न
Name the most important part of the human brain.
Give three examples of reflex actions.
A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :
(a) interceptor
(b) effector
(c) receptor
(d) acceptor
Write down the following activities in the correct order for a simple reflex arc:
(a) impulse travels in the motor fibre
(b) impulse travels in the sensory fibre
(c) effector organ stimulated
(d) impulse crosses the synapse
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Stimulus : Receptor :: Impulse : ______.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Receptor : Sensory nerve :: Motor nerve : ______.
what do we refer to in the nervous system when we say:
Natural and conditioned …………………
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:
Boy B starts salivating but not A. Explain the reason for this difference.
Define the following:
Reflex action
Explain the following term :
Conditioned reflex
State whether the following is
Constriction of pupil
State whether the following is
The sudden application of brakes without thinking
State whether the following is
Salivation when food is put in the mouth.
What type of reflex is the following?
Blinking of the eye
In reflex action, the reflex arc is formed by ______
Reflex arc allows the rapid response of the body to a stimulus.
Categorise the following under stimulus and response.
Pain in the eye if something falls into it.
