Advertisements
Advertisements
प्रश्न
Briefly explain the following terms : Reflex action
उत्तर
Reflex action:
A reflex action is an involuntary and quick response of the body initiated because of a stimulus. The commands for a reflex action originate from the spinal cord.
APPEARS IN
संबंधित प्रश्न
Give examples of unconditional reflexes
What are the various sense organs in our body?
Write the names of the regions in hindbrain. Give one function of each region.
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)
One of the following gives the correct sequence of the components in a reflex arc. This is:
Which of the following statements are true?
(i) sudden action in response to something in the environment is called reflex action
(ii) sensory neurons carry electrical signals from spinal cord to muscles in a reflex action
(iii) motor neurons carry signals from receptors to spinal cord in a reflex action
(iv) the pathway of transmitting signals from a receptor to a muscle is a reflex action
Define voluntary and reflex actions. Give examples of each.
Give one example of a conditioned reflex in your own life.
Give Technical Term:
Response to a stimulus without the intervention of the will of an animal.
Differentiate between Voluntary and involuntary actions.
