A firetruck provides water for a crew on the ground as firefighters backburned near Funny River Road Wednesday May 21, 2014 in Soldotna, Alaska. Fire crews have been battling a wildfire that has grown to more than 44,000 acres in three days.
A motor neuron (or motoneuron) is a nerve cell (neuron) whose cell body is located in the spinal cord and whose fiber (axon) projects outside the spinal cord to directly or indirectly control effector organs, mainly muscles and glands.he interface between a motor neuron and muscle fiber is a specialized synapse called the neuromuscular junction. Upon adequate stimulation, the motor neuron releases a flood of neurotransmitters that bind to postsynaptic receptors and triggers a response in the muscle fiber which leads to muscle movement.
For our purposes there are two different types of neurons. Afferent neurons and Efferent Neurons. Efferent Neurons are also considered motor neurons and they respond to signals FROM THE BRAIN TO THE BODY. Example your brain tells your arm to move, efferent neurons from the brain move your arm. Afferent neurons which I believe is the answer you are looking for send signals to the brain. They are also considered sensory neurons or receptor neurons. These signals are FROM THE BODY TO THE BRAIN. Example you feel a pinch on your hand, afferent neurons send the sensation of a pinch to your brain. In short Afferent neurons should be the answer.