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Heart - Wikipedia
In humans, deoxygenated blood enters the heart through the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here, it is pumped into pulmonary circulation to the lungs, where it receives oxygen and gives off carbon dioxide.
Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica
The heart is an 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 that is the center of the circulatory system in humans, other mammals, and birds.
Heart (band) - Wikipedia
Heart rose to fame with music influenced by hard rock and heavy metal [4] as well as folk music. The band underwent a major lineup change between the late 1970s and the early 1980s; by 1982 Fisher, Fossen, and Derosier all had left and were replaced by Mark Andes (bass) and Denny Carmassi (drums).
Heart: Anatomy & Function - Cleveland Clinic
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. Your brain and nervous system direct your heart’s function.
American Heart Association | To be a relentless force for a world of ...
Find trusted, science-based information to help Hispanic and Latino communities prevent and manage high blood pressure, high cholesterol, heart disease and stroke.
Heart Anatomy, Function, and Blood Circulation - WebMD
Learn about heart anatomy, including chambers, valves, and blood vessels, and how they coordinate blood circulation to keep the body functioning.
Heart - Simple English Wikipedia, the free encyclopedia
In people, the heart is about the size of a closed-hand and sits in between the lungs, in the chest-centered cavity. In humans, the heart has four parts called chambers. These are the upper-left and upper-right atria, and the lower-left and lower-right ventricles.
How the Healthy Heart Works - American Heart Association
Discover how the heart’s chambers, valves, and blood flow work together to circulate oxygen-rich blood throughout the body.
Heart & Circulatory System - KidsHealth
The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body’s tissues.
human cardiovascular system - Britannica
human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the blood is propelled by a muscular heart.
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