Academic session 2026-27, Chapter 6 in the current curriculum.
Welcome to the NCERT Solutions for Class 10 Science - Chapter Control and Coordination. This page offers a step-by-step solution to the specific question from Exercise 0, Question 50:
What are reflex actions? Give two examples. Explain a reflex arc.
. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.What are reflex actions? Give two examples. Explain a reflex arc.
Reflex action is a rapid or quick response to stimulus (involuntary mechanism) because of lower number of synapses. So, the organisms don’t have enough time to think. Or, it is also defined as the spontaneous, automatic and mechanical response to external stimuli which acts on the specific receptor.
Examples:- beating of heart, blinking of eyes, knee jerk reflex action, upward and downward movement of diaphragm during respiration. In knee- jerk reflex, a gentle strike below the knee cap, while sitting with free hanging legs then it shows the movement i.e it kicks the leg forward.
Reflex arc:- The path travelled by an electric impulse in a reflex action is called reflex arc. It consists of five parts:
1. A specific receptor:- It receives a stimulus and sets up a sensory impulse.
2. An afferent nerve:- it brings the sensory impulse from the receptors to the central nervous system.
3. Brain or spinal cord, are the portion of CNS which analyse and interpret the sensory impulse and set up an appropriate motor impulse.
4. An efferent nerve:- it carries the motor impulse from CNS to specific modulator and results in specific response to stimuli for the immediate action.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 50: What are reflex actions? Give two examples. Explain a reflex arc.....
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