Advertisements
Advertisements
Questions
What is a reflex action?
What is meant by Reflex action?
Advertisements
Solution 1
Reflex action is a sudden, spontaneous, automatic, involuntary response to a stimulus.
Solution 2
Reflex action is an autonomic, quick and involuntary action in the body brought about by a stimulus.
APPEARS IN
RELATED QUESTIONS
Which part of the eye contains cells which are sensitive to light?
Explain the difference between of the following pair of terms :
receptor and effector
Explain the difference between of the following pair of terms :
cerebrum and cerebellum
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the cells in your nasal passages which perceive the smell?
What is a reflex action? Explain with the help of an example.
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Which of the following statements is correct about receptors?
The part of brain which takes part in regulating respiration in the human body is :
(a) medulla
(b) pons
(c) cerebellum
(d) cerebrum
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
Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.
Define voluntary and reflex actions. Give examples of each.
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
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.
Explain the mechanism of reflex action with the help of a suitable diagram.
State whether the following is
Sneezing
State whether the following is simple reflex, conditioned reflex or neither of the two.
Blushing
Give Technical Term:
The scientist, who conducted experiment on a dog to show conditioned reflex
A change in the environment that causes an animal to react is called ______.
The given diagrammatic representation of reflex action shows knee jerk reflex.

Identify the parts labeled as A to E and select the correct option.
