Human Heart and Blood Circulation
Explore the chambers and valves of the heart and trace blood through both circuits.
10 topics · 10 live
Follow blood through the heart, watch the lungs fill, rotate the skeleton, fire a neuron, track a meal through the gut, filter blood in the kidneys, follow hormones and the immune response, and see muscles contract. Educational models only — not medical advice.
Educational models only. Anatomy and physiology simulations are simplified for learning and are not medical advice, diagnosis or a substitute for clinical training. Read the disclaimer.
Explore the chambers and valves of the heart and trace blood through both circuits.
Move the diaphragm, watch the lungs expand and follow oxygen into the blood.
Rotate a 3D skeleton, select bones and explore the joints that connect them.
Stimulate a neuron and watch an action potential travel down the axon.
Follow food from mouth to intestine and see where each nutrient is broken down and absorbed.
Follow blood through a nephron and see how the kidneys filter waste and balance water and salt.
Explore the female and male reproductive systems, the menstrual cycle hormones and the first days after fertilisation.
Explore the glands and their hormones, run the thyroid feedback loop and control blood glucose with insulin and glucagon.
Explore the immune organs, let a pathogen in through a cut and watch innate and adaptive immunity respond, then compare first and second exposures.
Explore major skeletal muscles in 3D, watch actin and myosin slide inside a sarcomere, move the arm with an antagonistic pair and compare the three muscle types.