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प्रश्न
Give examples of unconditional reflexes
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उत्तर
Examples of uncondition reflexes are blinking of eyes with strong light, withdrawl of hand when pricked, breast feeding, swallowing, knee jerk, sneezing, coughing etc.
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संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
A neuron which carries an impulse to the brain is called a ______ neuron.
Give the functions of medulla.
What is the difference between a voluntary and an involuntary action? Which kind of action is digestion? Explain your choice.
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)
Multiple choice question. Tick (✓) the correct choice:
Reflex actions occur under the control of
- brain
- medulla oblongata
- spinal cord
- cerebrum
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Receptor : Sensory nerve :: Motor nerve : ______.
State whether the following is
Constriction of pupil
A reflex arc in man is best described as movement of stimuli from:
The reflex arc which is made up of one sensory and one motor neuron is ______
