I think it occurs only to balance the body.The example can be the person moving on rope by extending his arms.If one of the arm become paralyze he can not balance himself and fell down.
Sensory Neurones
decussation of pyramids
Synapse
what is the role of sensory and motor neurones in a reflex arc
Stimulus detected by receptors, transmitted to brain via afferent neurones, info processed at brain, efferent neurones, then to affector such as muscles.
A nerve is a bundle of neurones
Sensory Neurones
decussation of pyramids
sensory neurones motor neurones
the body has both sensory and motor neurones because the sensory neurones sense what is happening and sends the message along and like a motor the motor neurones pass on the message constantly round and round until it reaches its destination
Synapse
Decussate
what is the role of sensory and motor neurones in a reflex arc
Sensory neurones carry impulses to the CNS, motor neurones carry impulses to muscles.
The nervous system is used to trasmit information around the body. It is made of two systems: the central nervous system (which consists of the spine and brain) and the peripheral nervous system (which consists of neurones and receptors). There are three types of neurones: sensory neurones, relay neurons, and motor neurones.
The axons of the neurones.
Stimulus detected by receptors, transmitted to brain via afferent neurones, info processed at brain, efferent neurones, then to affector such as muscles.