English

Give Two Examples of Reflex Actions in Our Daily Life.

Advertisements
Advertisements

Question

Give two examples of reflex actions in our daily life.
Short/Brief Note
Advertisements

Solution

Following are the two examples of reflex actions in our daily life :
(i) Removing hand suddenly when pricked by a thorn.
(ii) Blinking of eyelids on exposure to light.

shaalaa.com
  Is there an error in this question or solution?

RELATED QUESTIONS

Which part of the eye contains cells which are sensitive to light?


Give the flow chart of a spinal reflex arc.


Which of the following cannot be considered a receptor?

(a) ear
(b) nose
(c) muscle
(d) eye


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)


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.

Sudden application of brakes of the cycle on sighting an obstacle in front


List in tabular form three distinguishing features between cerebrum and cerebellum.


Reflex arc allows the rapid response of the body to a stimulus.


The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.

  1. Name the phenomenon shown in the figure and define the same.
  2. Identify the parts labelled as 1 and 2. Write one functional difference between these two.
  3. Name the bony protective covering and the membranous protective covering of the spinal cord.
  4. Label the guidelines 3 and 4.
  5. How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
  6. Give the technical term for the point of contact between the two nerve cells.
  7. Name the fluid filled inside the central canal of spinal cord.
  8. Name the term used for a small gap between two neurons.
  9. Give one example of a neurotransmitter.
  10. Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×