A major regulatory system that influences metabolism, growth, reproduction, and many other functions. Consists of endocrine glands, including the hypothalamus, pituitary, thyroid gland, adrenal gland, gonads, and other tissues that secrete hormones
Endocrine system
Produces body movements, maintains posture, and produces body heat. Consists of muscles attached to connective tissue sheets or the skeleton by tendons.
Muscular system
Transport nutrients, waste products, gases, and hormones throughout the body; plays a role in the immune response and regulating body temperature. Consists of the heart, blood vessels, and blood.
Cardiovascular system
Removes foreign substances from the blood and lymph, combats diseases, maintains tissue fluid balance, and absorbs dietary fats from the digestive tract. Consists of the lymphatic vessels, lymph nodes, thymus, spleen, and other lymphatic tissues.
Lymphatic system
Removes waste products from the blood and regulates blood pH, ion balance, and water balance. Consists of the kidneys, ureters, urethra, and urinary bladder.
Urinary system
Exchanges oxygen and carbon dioxide between the blood and air and regulates blood pH. Consists of the lungs, diaphragm, and respiratory passages.
Respiratory system.
Produces oocytes and is the site of fertilization and fetal development; produces milk for the newborn; produces hormones that influence sexual function and behaviors. Consists of the ovaries, uterine tubes, uterus, vagina, mammary glands, and associated structures.
Female Reproductive System
Performs the mechanical and chemical processes of digestion, absorption of nutrients, and elimination of wastes. Consists of the mouth, esophagus stomach, intestines, liver, gallbladder and other accessory organs.
Digestive system
Produces and transfers sperm cells to the female and produces hormones that influencee sexual functions and behaviors. Consists of the testes, accessory structures, ducts, and penis.
Male reproductive system