What is Reflex Arc? Draw neat diagram of the components in a reflex arc. Why do impulses flow only only in one direction in a reflex arc?

The pathway taken by a stimulus to travel from receptor organ to effector organ is called the reflex arc.

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1- THIS IS THE STUCTURE OF REFLEX ARC

2- What is Reflex Arc ?...

  •  The automatic / involuntary action which are under the control is called Reflex Action. The pathway Reflex Action is called Reflex Arc.

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1- THIS IS THE STUCTURE OF REFLEX ARC

2- What is Reflex Arc ?...

  •  The automatic / involuntary action which are under the control is called Reflex Action. The pathway Reflex Action is called Reflex Arc.

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The simplest form of response in the nervous system is called reflex action and the pathway taken by nerve impulses in a reflex action is called reflex arc.

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 Nerve impulses can't travel in opposite direction because nerve cells only have neurotransmitter storage vesicles going one way and receptors in one place.

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The pathway followed by nerve impulses to transmit the message to the receptors and then carry it back to the effector muscle cells in response to a stimuli is called reflex arc.

DIAGRAM:

 

Nerve impulses  travel in one direction only because nerve cells only have neurotransmitter storage vesicles going one way and receptors in one place .

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Reflex arc is the path followed by nerve impulses to produce the reflex action. It usually includes receptor organ, afferent nerve, nerve center, efferent nerve, effector organ or a muscle.

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