Heart
Pumps oxygenated blood through the circulatory system and adapts its output to the body’s changing demands.
Explore human anatomy through interactive specimens, visual lessons, concise organ guides, and private study notes.
Preparing the anatomy library…Explore the library
Use the interactive workspace above, then reinforce what you learned with these concise organ summaries. Each guide connects structure, location, function, and clinical context.
Anatomy reference
The illustrations and 3D models provide spatial context; the written summaries provide the learning substance.
Pumps oxygenated blood through the circulatory system and adapts its output to the body’s changing demands.
Coordinates sensation, movement, memory, language, emotion, and the automatic processes that keep the body stable.
Exchange oxygen and carbon dioxide across millions of microscopic air sacs called alveoli.
Processes nutrients, produces bile, stores energy, makes essential proteins, and helps clear substances from the blood.
Filter the blood, regulate fluid and electrolyte balance, influence blood pressure, and form urine.
Focuses light onto the retina, where specialized cells convert it into signals interpreted as vision.
Completes digestion, absorbs nutrients and water, and supports a diverse community of microorganisms.
Produces digestive enzymes and releases hormones such as insulin and glucagon that regulate blood glucose.
Forms the body’s largest protective barrier while supporting sensation, temperature control, and water balance.