system that provides the structural support for the body, protects internal organs, and facilitates movement through bones and joints.
system that removes waste products from the body and regulates fluid balance, including the kidneys, ureters, bladder, and urethra.
system that transports blood, nutrients, gases, and waste products throughout the body, consisting of the heart, blood vessels, and blood.
Blood vessels that carry oxygenated blood away from the heart to the body's tissues.
system responsible for defending the body against infections and diseases by identifying and destroying pathogens, including cells like white blood cells and antibodies.
system that regulates bodily functions through hormones, produced by glands such as the thyroid, adrenal glands, and pancreas.
system that includes the skin, hair, and nails, serving as a protective barrier for the body and helping to regulate temperature and sensation.
organ in the digestive system that breaks down food using acids and enzymes, converting it into a semi-liquid form for further digestion.
process by which the body maintains a stable internal environment despite changes in external conditions, crucial for overall health and function.
Chemical messengers produced by endocrine glands that regulate various physiological processes, including metabolism, growth, and mood.