Jan 8, 2025 · The seven main functions of the heart include pumping blood throughout the body, delivering oxygen to tissues, removing waste from tissues, controlling heart rate, maintaining …

Your heart contains four muscular sections (chambers) that briefly hold blood before moving it. Electrical impulses make your heart beat, moving blood through these chambers.

May 14, 2018 · From the body to the heart. Figure B below shows dark bluish blood, low in oxygen, flowing back to the heart after circulating through the body. It returns to the heart …

In this animation we explain how the human heart works, its function and structure.http://www.thomas-schwenke.mehttp://www.evolution-and-health.com00:00 Intr...

Oct 21, 2025 · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double …

These blood vessels carry blood to and from all areas of your body. An electrical system regulates your heart and uses electrical signals to contract the heart's walls. When the walls contract, …

Aug 22, 2024 · How Does the Heart Work? As the heart beats, it pumps blood through a system of blood vessels called the circulatory system. The vessels are elastic tubes that carry blood to …

Jul 26, 2025 · Cardiac function refers to the heart’s ability to pump blood throughout the body. This continuous circulation delivers oxygen and nutrients to cells, tissues, and organs. …

Mar 24, 2022 · Inside your heart, valves keep blood flowing in the right direction. Your heart’s electrical system controls the rate and rhythm of your heartbeat. A healthy heart supplies your …

Your heart has an electrical conduction system which sends signals throughout the upper chambers (atria) and lower chambers (ventricles). The electric signals make your heart beat in …