Firstly your receptor cells pick up a stimuli and sends an electrical impulse along the sensory neurone's axon to the spinal cord.the impulse is then passed onto the relay neurons IN the CNS(the spinal cord decides what to do but the brain is also informed).
The relay neurone then passes the command from the spinal cord in the form if an impulse to the motor neurone.the impulse travels along its axon to the effector.
Hope it helps
P.S. •relay neurones exist only within the CNS and not outside it.
•reflex arcs take the shortest possible route
spinal cord
nervous system controll and co ordinate the body functioning. reflex action helps to safeguarde the body from all sorts of sudden unexpected dangers
by reflex action
spinal cord
The nervous system.
spinal cordautotomicspinal cord in the central nervous system controls reflex arc and reflex action.
sensory neurone --> enters spinal cord --> relay neurone --> brain(is not a reflex action) or motor neurone(if action is reflex)
because of reflex action by our nervous system
It is a reflex action which is an autonomic (automatic) nervous system reaction to stimuli. It is the respiratory system and the nervous system working together. The pepper is an irritant to the nasal mucosa and it signals to the brain to sneeze and get it out of there. Another example of a reflex action is when you touch something extremely hot....you quickly pull your hand away.
The nervous center has many functions. It's main function is to control your reflex actions and it gives you your sense of touch.
The medulla oblongata is responsible for regulating several basic functions of the autonomic nervous system, including respiration, cardiac function, vasodilation, and reflexes like vomiting, coughing, sneezing, and swallowing.
The Patellar reflex is an example of a somatic reflex. This refers to the branch of the nervous system that the reflex pertains to. The somatic branch is part of the Peripheral Nervous system, meaning that it's reflex arc does not pass through the central nervous system (the spinal cord and the brain)
I believe that you are referring to a "reflex".