lesson 3

smallest living unit in the body that produces and releases hormones

are nerve cells that send messages all over

your body to allow you to do everything from

breathing to talking, eating, walking, and thinking

controls everything a person does

below the cerebellum at the base

of the skull controls heart beat, breathing and

blood pressure

rod of tissue that runs down the back to the brain

expand the acronym: PNS

prepares the body for action and

stress; fight or flight

disorders of the nervous system:

Affects the movements of a person

Disorders of the endocrine system:

the thyroid gland cannot produce the normal amount of thyroid hormone

is responsible in the regulation

and maintenance of the internal