| Term | Definition |
| hypothalamus | links the Nervous System and Endocrine System; controls pituitary gland |
| pituitary gland | the master gland that controls growth, blood pressure, sex organ functions and water balance in the body |
| parathyroid gland | releases calcium from bones into bloodstream, helps absorption of food in intestines |
| thyroid | regulates the body's metabolism and calcium balance |
| pancreas | helps break down carbohydrates, fats, proteins, and acids in the small intestines; secretes hormones of insulin and glucogon to regulate sugar levels in blood |
| adrenal glands | helps immune system; helps a person cope with physical and emotional stress |
| ovaries | female reproductive glands, which produce eggs, progeserone and estrogen |
| testes | male reproductive glands, which produce sperm and testosterone |
| brain | part of the CNS and is the information center of the body |
| cerebrum | largest part of the brain responsible for voluntary movements and your five senses |
| cerebellum | part of your brain responsible for balance and muscle coordination |
| pons | part of your brain that relays information and possibly dreaming |
| medulla | part of your brain that controls involuntary actions such as heart rate and breathing |
| spinal cord | bundle of nerves from the brainstem down your back |
| sensory neurons | send information to the CNS from the body's senses |
| motor neurons | send information to body's muscles and glands from CNS |