| absorbs nutrients | small intestine |
| absorbs water | large intestine |
| attaches the intestines to the abdominal wall | mesentery |
| carries air from the throat to the lungs | trachea |
| carries air from the trachea to the lungs | bronchi |
| carries oxygen-depleted blood to the heart | veins |
| carries oxygen-filled blood away from the heart | arteries |
| central organ of the nervous system | brain |
| connects bones to bones | ligaments |
| connects muscles to bones | tendons |
| coordinates voluntary muscular movements and maintains posture and balance | cerebellum |
| detoxifies chemicals and produces bile | liver |
| develops and matures T-cells | thymus gland |
| exchanges oxygen and carbon dioxide with the blood | lungs |
| exchanges oxygen, nutrients, and waste between blood and tissue | capillaries |
| filters blood and stores platelets and white blood cells | spleen |
| filters lymph fluid and produces white blood cells | lymph nodes |
| filters waste out of blood and produces urine | kidneys |
| insulates and protects skin | hair |
| muscle that contracts to allow the lungs to expand and fill with air | diaphragm |
| outer end of the uterus, allowing menstrual flow to exit and sperm to enter | cervix |
| passageway that directs air to the respiratory system and food to the digestive system | pharynx |
| produces blood cells | bone marrow |
| produces digestive enzymes and insulin | pancreas |
| produces eggs and estrogen | ovaries |
| produces gastric juices to break down food | stomach |
| produces hormones that regulate the body's metabolic rate | thyroid |
| produces hormones that regulate the body's stress response | adrenal glands |
| produces melatonin | pineal gland |
| produces milk | mammary glands |
| produces seminal fluid | prostate |
| produces sound and protects food from entering the airway | larynx |
| produces sperm and testosterone | testes |
| provides nutrients and oxygen to fetuses | placenta |
| pumps blood through the body | heart |
| regulates calcium levels | parathyroid glands |
| regulates temperature, hunger, thirst, and sleep cycles | hypothalamus |
| secretes hormones and controls the activity of other endocrine glands | pituitary gland |
| shields the body and regulates temperature | skin |
| stores beneficial gut bacteria | appendix |
| stores bile | gallbladder |
| stores energy in the form of fat and provides insulation | adipose tissue |
| stores urine | bladder |
| transmits electrical impulses throughout the body | nerves |
| transports eggs from the ovaries to the uterus | Fallopian tubes |
| transports food from the throat to the stomach | esophagus |
| transports lymph fluid throughout the body | lymphatic vessels |
| transports urine from the bladder out of the body | urethra |
| transports urine from the kidneys to the bladder | ureters |
| traps inhaled or ingested pathogens and produces antibodies | tonsils |
| where fertilized eggs implant and fetuses mature | uterus |
