What is the meaning of reflex actions? Give examples. - Vidyadip

Question

What is the meaning of reflex actions? Give examples.

✓

Answer

Reflex action is involuntary instant action without the involvement of brain for bringing about important reaction needed for survival.
Examples of reflex action:
(1) Removal or withdrawal of hand or leg when anything sharp or hot touches unknowingly
(2) Coughing, Sneezing, Yawning
(3) Knee jerk response
(4) Movement of diaphragm
(5) Contriction of pupil in bright light
(6) Mouth starts watering when smell or sight of favourite/delicious food is there.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 Mark Questions]" from PART - 2 CH - 6 Control and Coordination→PART - 2 CH - 6 Control and Coordination — all question types→Science STD 10 question papers→Gujarat Board STD 10 question papers→Gujarat Board question paper generator→

Similar questions

For a particular situation which hormone prepares the human body for either fighting or running away from the situation? State the effect of this hormone in animal body.

Explain about (i) Centres of curvature (ii) Principal axis (iii) Optical Centre (iv) Radius of curvature (v) Aperture in case of convex or concave lens.

Represent with structure of the functional group of soap and detergent.

Explain how in nuclear energy is generated through nuclear fission process.

Write short note: Thermal power plant

Which law gives relation between potential difference across a metallic wire and current through it ? Describe it in brief.

What is called reflection of light ? Using a proper diagram, explain about incident ray, reflected ray, angle of incidence, angle of reflection and plane of incidence.

Your neighbour is a chain-smoker. He often suffers from cough and lung infection. His relatives often tell him to leave smoking.
(1) How inhaled air is filtered in the upper part of respiratory tract ?
(2) Which is the effect of smoking on the upper part of respiratory tract?
(3) Why do you call smoking as injurious to health?

What is meant by substitution reaction? Explain.

Which hormone is secreted under the fight or flight situation? State its effects.