The heart is a muscular organ that usually beats between 60 and 80 times per minute. View the heart in augmented reality on your mobile device.

Oct 3, 2024 · Each beat starts in the heart’s two upper chambers — the right and left atrium. The right atrium fills with low-oxygen blood that is returning from a circuit around the body. The left …

How does the heart beat? An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right …

The Virtual Cardiac Anatomy Tool offers high-fidelity rendering of the human heart for use in teaching, rounds, and bedside.

Mar 12, 2023 · The electrical system of the heart is critical to how it functions. It controls the electrical impulses that cause your heart to beat and their conduction, which organizes the …

Jan 22, 2025 · The heart is a muscular organ that pumps blood throughout the body via the circulatory system. It is approximately the size of a fist and consists of four chambers: two atria …

Jan 8, 2025 · Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.

3D model of the normal heart and lungs with numbered English labels. From a collaboration of Universities of Leiden, Delft and Groningen. A 3D photogrammetry of a plastinated opened …

Cardiomyopathy is when the heart muscle becomes enlarged, thick or rigid in cardiomyopathy, and in rare cases the muscle tissue is replaced with scar tissue. As the condition worsens, the …

Jan 27, 2025 · In humans, the heart is situated between the two lungs and slightly to the left of center, behind the breastbone. It rests on the diaphragm, the muscular partition between the …