| Term | Definition |
|---|---|
| skeletal system | supports body and protects organs |
| muscular system | allows body movements |
| respiratory system | O2/CO2 exchange |
| circulatory system | circulates blood, moving oxygen/nutrients |
| excretory system | removes waste from body |
| nervous system | controls your senses and and carries mesages |
| digestive system | breaks down food into nutriments |
| immune system | helps heal injuries and fight off diseases |
| integumentary system | protects your body from injury or infection |
| endocrine system | produces chemicals that regulate/control |
| reproductive system | produces offspring |
| digestion | breaks down food into smaller and simpler substances |
| saliva | helps moisten and soften the bolus and to break it down chemically |
| pharynx | connects the mouth to the digestive tube |
| esophagus | contains muscles that contract and expand like rubber bands and helpsto push food down |
| stomach | a digestive organ with thick muscular walls |
| small intestine | a coiled, tubular organ that is connected to the stomach. |
| large intestine | a thick, tubular organ that removes undigested waste |
| inhale | to breath in |
| lungs | the main organ of the Respiratory System |
| exhale | to breath out |
| diafragm | a flat muscle that controls breathing |
| capillary | a tiny blood vessel |
| alveoli | thin-walled air sacs within the lungs |
| diffusion | the movement of particles from areas with high concentration to areas with low concentration |
| heart | the muscular organ that pumps blood through the body |
| artery | a blood vessel that carries blood away from the heart |
| vein | a blood vessel that transports blood back to the heart |
| urinary system | the part of the excretory system that handles most of the liquids |
| kidneys | a bean-shaped organ that filters waste out of the blood |
| urine | a fluid consisting of body waste and excess water |
| nephron | small individual filters within the kidneys |
| bladder | an organ of the excretory system that temporarily stores urine |
| urethra | a tube that carries urine from the bladder to the outside of the body |
