Question

a. What are reflex actions? Give two examples.
b. Explain reflex arc with the help of a diagram.

Answer 1

a. What are reflex actions? Give two examples.

Reflex action is defined as an unconscious and involuntary response of effectors to a stimulus. Example, on touching a hot object (stimulus), we immediately remove our hand from it. Other example from daily life are watering of mouth on seeing food, sneezing, blinking of eyes and yawning.

b. Explain reflex arc with the help of a diagram.

including at its simplest a sensory nerve and a motor nerve with a synapse between.

Answer 2

Answer:

Hi

Explanation:

A reflex action is a spontaneous unconscious immediate involuntary response of effectors to the stimulus. ex are blinking of eyes, sneezing. two functions are receptor organ collects information from the surrounding environment. and sensor y nerve Carries impulse from the receptor organ to the spinal cord