nervous system
nerves are also called neurons and they transport impulses(messages)
Optic nerves
These "channels " are actually nerves termed as Afferent and Efferent nerves usually called motor and sensory nerves.
pain
Motor neurons.
nerves are also called neurons and they transport impulses(messages)
Nerves relay messages by transmitting an electrical impulse.
It's main purpose is to transport messages from one part of the body to another in the form of nerve impulses.
Sensory nerves.
Neurons
Nerves
Optic nerves
Nerves
muscle nerves carry messages from the brain to tell the muscle to contract.
Nerves
nerves system
nerves