Nervous System

the neuron (nerve cell)

the basic structural unit of the nervous system

The axon

part of the neuron carries impulses away from the cell body

myelin sheath

acts as an insulating layer that increases the speed at which electrical impulses travel along the nerve cell. 

The cerebellum 

part of the brain controls balance and coordination

hypothalamus

It regulates homeostasis

The Central Nervous System 

division of the nervous system includes the brain and spinal cord

The medulla oblongata 

part of the brainstem controls heart rate, respiration, and blood pressure

Motor neurons 

type of neuron carries messages from the brain and spinal cord to muscles and glands

cerebrospinal fluid

It acts as a shock absorber to protect the brain and spinal cord, carries nutrients, and removes metabolic waste.

The sympathetic nervous system

nervous system division responsible for the "fight or flight" response