What is reflex action and reflex arc? Explain with the help of a diagram.
Answers
Explanation:
Reflex Action:
➡A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus.
➡ A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain
➡Reflex Arc. The neural pathway that controls the reflexes occurs through the reflex arc. It acts on an impulse even before it reaches the brain.
➡ Immediately, the spinal cord sends back signals to the muscle through the motor neuron.
Answer:
Reflex Action
The whole mechanism of reflex action occurs in such a fashion that there is no conscious control of the brain. Stimulation occurs through the peripheral nervous system and the response to this peripheral nerve stimulation is involuntary. In a reflex action, the spinal cord along with the brain stem is responsible for the reflex movements.
Reflex Arc
The neural pathway that controls the reflexes occurs through the reflex arc. It acts on an impulse even before it reaches the brain. There are some stimuli that require an automatic, instantaneous response without the need of conscious thought. The following diagram shows the reflex arc pathway.
The diagram is not fitted properly
