sensory neurons trust me i know this one for sure i went on over 29 websites to find this out
brain or spinal cord
An Efferent Neuron.
Afferent neurons (sensory)
sensory neuron
from spinal nerve to posterior (dorsal) root
efferent
The nervous system carries impulses to and from the brain by way of neurons. The bundles are called nerves. Sensory nerves bring impulses into the spinal cord and brain and motor neuron carry impulses away from the brain and spinal cord to the muscles and glands.
Efferent neuron is a neuron that regulate the action of a muscle, gland, or other effector tissue. It is a neuron which produces impulses outward from the brain or spinal cord, so its consider a multi-polar neuron.
The part of the neuron that carries sensations to the brain via the spinal cord is the axon. Sensory neurons have long axons that transmit nerve impulses from sensory receptors, such as those in the skin or muscles, to the spinal cord. From the spinal cord, these signals are relayed to the brain for processing and interpretation.
Diverging circuits
afferent neurons
The brain is the control, and the whole reaction of a reflex arc starts with a stimulus, ie, touching a hot flame, the detector of this stimulus being the receptor. The electrical impulses travel through the sensory neuron to which it is then carried to the synapse (impulses reach the brain) the energy is then transferred across the synapse, to the relay neuron and then to the motor neuron, finally reaching the effector, (mainly muscle or gland) to move away the body part.