types of neurons

sensory neuron

relay neuron

motor neuron

sensory neurons:

found in receptors such as eyes, ears, tongue, brain

carry nerve impulses to the spinal cord and brain

when they reach the brain, they are translated into sensations (vision, hearing, taste, touch)

carry messages from PNS to CNS

have long dendrites and short axons

relay neurons:

found in brain and spinal cord, allows sensory and motor neurons to communicate by connecting them

have short dendrites and short axons

motor neurons:

found in the CNS, connects it to effectors

control muscle movements

when stimulated, they release neurotransmitters that bind to the receptors on muscles, triggering a response and making movement

short dendrites and long axons