Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica
Dec 9, 2024 · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks.
Heart: Anatomy & Function - Cleveland Clinic
Jan 26, 2024 · As the main organ of your circulatory system, your heart keeps you alive. It pumps blood throughout your body, bringing oxygen to your cells and tissues. Since your heart plays such a vital role, it’s important to take care of it.
Circulatory System: Anatomy and Function - Cleveland Clinic
Sep 21, 2021 · What is the circulatory system? Your heart and blood vessels make up the circulatory system. The main function of the circulatory system is to provide oxygen, nutrients and hormones to muscles, tissues and organs throughout your body. Another part of the circulatory system is to remove waste from cells and organs so your body can dispose of it.
The Heart | Circulatory Anatomy - Visible Body
The heart is a hollow, muscular organ that pumps oxygenated blood throughout the body and deoxygenated blood to the lungs. This key circulatory system structure is comprised of four chambers. One chamber on the right receives blood with waste (from the body) and another chamber pumps it out toward the lungs where the waste is exhaled.
Heart Anatomy, Function, and Blood Circulation - WebMD
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.
Heart Anatomy: Complete Guide with Parts, Names & Diagram
Dec 26, 2024 · Overview of Human Heart Anatomy. The heart is a vital muscular organ in most animals that powers the circulation of blood through the body. In heart anatomy, blood vessels help form the circulatory system, which delivers oxygen and nutrients to tissues and removes waste like carbon dioxide. This waste is carried to the lungs for expulsion.
Heart - Structure, Function, Anatomy, Location, Diagram
Nov 29, 2024 · 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 and two ventricles. The heart is composed of specialized muscle tissue, known as myocardium, and is encased within a double-layered protective sac called the
How Your Circulatory System Works - Cleveland Clinic
Sep 4, 2024 · People often refer to the circulatory system as the cardiovascular system. They are different names for the same system. What is the circulatory system’s function? Your circulatory system’s three basic functions are: Move blood throughout your body. Bring oxygen and nutrients to your organs, muscles and tissues.
Cardiovascular System: Organs and Functions Diagram - Verywell …
Aug 26, 2024 · From the left atrium, blood travels across the mitral valve into the heart's main muscular chamber, the left ventricle. The left ventricle pumps blood across the aortic valve into the aorta, the body's main artery. The aorta branches into many arteries that carry blood all …
Interactive Guide to the Cardiovascular System | Innerbody
Dec 9, 2024 · Learn all about the heart, blood vessels, and composition of blood itself with our 3D models and explanations of cardiovascular system anatomy and physiology. The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.