Heart is an American rock band formed in Seattle, Washington, in 1973. The band evolved from previous projects led by the founding members Roger Fisher (guitar) and Steve Fossen (bass guitar), …

Dec 6, 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 pump …

Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.

Aug 22, 2024 · Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

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.

Mar 24, 2022 · This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor blood, shown in blue-purple, flows into the heart and is pumped out …

May 14, 2025 · The heart is situated within the chest cavity and surrounded by a fluid-filled sac called the pericardium. This amazing muscle produces electrical impulses that cause the heart to contract, …

Oct 1, 2025 · Your heart is an essential organ in your body. It functions as a muscle that pumps blood nonstop and sends oxygen and nutrients to other organs.

Sep 3, 2025 · The anatomy of the human heart starts with understanding each of the four chambers. Learn about the upper, lower, right, and left parts of heart anatomy.

Nov 7, 2024 · Your heart delivers oxygen and nutrients throughout the body, regulates blood pressure, and maintains overall health and wellness. To keep your heart functioning properly, you must take …