Heart - Wikipedia
The heart is a muscular organ found in humans and other animals. This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. …
Heart: Anatomy & Function - Cleveland Clinic
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 …
Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica
Dec 9, 2024 · 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 …
How the Heart Works - What the Heart Looks Like - NHLBI, NIH
Mar 24, 2022 · Your heart is in the center of your chest, near your lungs. It has four hollow chambers surrounded by muscle and other heart tissue. The chambers are separated by heart …
How the Heart Works - The Heart - NHLBI, NIH
Mar 24, 2022 · The heart is an organ about the size of your fist that pumps blood through your body. It is made up of multiple layers of tissue. Your heart is at the center of your circulatory …
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 …
Heart (Human Anatomy): Overview, Function & Structure | Biology
Oct 4, 2019 · The heart is a muscular organ that pumps blood throughout the body. It is located in the middle cavity of the chest, between the lungs. In most people, the heart is located on the …
The heart: Anatomy, how it works, and more - Medical News Today
Sep 30, 2020 · The human heart is a finely-tuned instrument that serves the whole body. It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of …
Heart Anatomy: Complete Guide with Parts, Names & Diagram
Dec 26, 2024 · 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, …
Heart Anatomy: Diagram, Blood Flow and Functions - MedicineNet
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 …
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