11 Organ Systems and Their Functions

Vocabulary flashcards covering the 11 organ systems and their primary functions.

Muscular system

Enables movement, maintains posture, and generates heat. (Example organ: Muscles)

Skeletal system

Supports the body, protects organs. (Example organ: Bones)

Nervous system

Controls body activities through rapid electrical signals; transmits information. (Example organ: Brain)

Endocrine system

Regulates body processes through hormones released by glands. (Example organ: Thyroid gland)

Cardiovascular system

Transports blood, nutrients, gases, and wastes; helps regulate blood pressure. (Example organ: Heart)

Integumentary system

Protects against damage and dehydration; regulates temperature; contains sensory receptors. (Example organ: Skin)

Lymphatic (immune) system

Defends against infections; returns tissue fluid to the bloodstream; aids fat absorption. (Example organ: Lymph nodes)

Respiratory system

Brings in oxygen and removes carbon dioxide; gas exchange in the lungs. (Example organ: Lungs)

Digestive system

Breaks down food to absorb nutrients and obtain energy. (Example organ: Stomach)

Urinary system

Removes wastes and maintains water, electrolyte, and acid-base balance. (Example organ: Kidneys)

Reproductive system

Produces sex cells and enables reproduction; differs between males and females