Layer of grey matter on the surface of the cerebrum that receives information and generates responses.

The posterior portion of the brain that coordinates muscle movement and controls subconscious activities and balance.

Structure that connects the brain to the spinal cord and controls breathing and heartbeat.

Nerve pathway in which an impulse crosses only two synapses before producing a response. 

The portion of the neural structure that provides nerve connections to the skin, skeleton and muscles of the body, but not to the viscera, blood vessels and glands.

The part of the nervous system that controls involuntary actions.

Part of the autonomic nervous system that prepares the body for action or stress.

Part of the autonomic nervous system that calms the body and helps the body to conserve energy.

Part of the reflex arc that only transfers or links the receptor to the effector neuron.