0 votes
in Biology by (42.3k points)
closed by

Write short notes on:

Reflex action

1 Answer

+1 vote
by (43.0k points)
selected by
Best answer
  • An immediate and involuntary response given to a stimulus from the environment is called a reflex action. 
  • Sometimes we react to an incident without any thinking on our part or control over the reaction. 
  • This is a response given to a certain stimulus from the surroundings. 
  • In such situations, proper control and coordination is achieved even without the intervention of the brain. 
  • For example, when our hand touches a hot object, the receptor in the skin detects the stimulus. 
  • The sensory neuron sends the impulse to the relay neuron in the spinal cord. 
  • The impulses are then sent to motor neurons which cause the muscles of the hand to contract and move away from the hot object.
  • The spinal cord is the center of co-ordination for reflex actions.

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.