System Components: Skin and structures derived from it, such as hair, nails, and sweat and oil glands
System Components: All the bones and joints of the body and their associated cartilages
System Components: Specifically refers to skeletal muscle tissue, which is muscle usually attached to bones (other muscle tissues include smooth and cardiac).
System Functions: Helps regulate body temperature; protects the body; eliminates some wastes; helps make vitamin D; detects sensations such as touch, pressure, warmth, and cold
System Functions: Supports and protects the body, provides a specific area for muscle attachment, assists with body movements, stores cells that produce blood cells, and stores minerals and lipids (fats)
System Functions: Participates in bringing about body movements, maintains posture, and produces heat
System Components: Brain, spinal cord, nerves, and sense organs such as the eyes and ears
System Functions: Regulates body activities through nerve impulses by detecting changes in the environment, interpreting the changes, and responding to the changes by bringing about muscular contractions or glandular secretions
System Components: All glands and tissues that produce chemical regulators of body functions called hormones
System Functions: Regulates body activities through hormones transported by the blood to various target organs
System Componets: Blood, heart, and blood vessels
System Functions: Heart pumps blood through blood vessels; blood carries oxygen and nutrients to cells and carbon dioxide and wastes away from cells, and helps regulate acidity, temperature, and water content of body fluids; blood components help defend against disease and mend damaged blood vessels
System Components: Lymphatic fluid and vessels; spleen, thymus, lymph nodes, and tonsils; cells that carry out immune responses (B cells, T cells, and others).
System Functions: Returns proteins and fluid to blood; carries lipids from gastrointestinal tract to blood; contains sites of maturation and proliferation of B cells and T cells that protect against disease-causing microbes
System Components: Lungs and air passageways such as the pharynx (throat), larynx (voice box), trachea (wind pipe), and bronchial tubes leading into and out of them
System Functions: Transfers oxygen from inhaled air to blood and carbon dioxide from blood to exhaled air; helps regulate acidity of body fluids; air flowing out of lungs through vocal cords produces sound
System Components: Organs of gastrointestinal tract, including the mouth, pharynx (throat), esophagus, stomach, small and large intestines, rectum, and anus; also includes accessory digestive organs that assist in digestive processes, such as salivary glands, liver, gallbladder, and pancreas
System Functions: Achieves physical and chemical breakdown of food; absorbs nutrients; eliminates solid wastes
System Components: Kidneys, ureters, urinary bladder, and urethra
System Functions: Produces, stores, and eliminates urine; eliminates wastes and regulates volume and chemical composition of blood; helps regulate acidity of bodily fluids; maintains body's mineral balance; helps regulate red blood cell production
System Components: Gonads (testes or ovaries) and associated organs: uterine tubes, uterus, and vagina in females, and epididymis, ductus (vas) deferens, and penis in males. Also, mammary glands in females.
System Functions: Gonads produce gametes (sperm or oocytes) that unite to form a new organism and release hormones that regulate reproduction and other body processes; associated organs transport and store gametes. Mammary glands produce milk.