Heart anatomy: Structure, valves, coronary vessels | Kenhub
网页2023年11月3日 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium.
Heart: Anatomy & Function - Cleveland Clinic
网页2024年1月26日 · Your heart’s main function is to move blood throughout your body. Blood brings oxygen and nutrients to your cells. It also takes away carbon dioxide and other waste so other organs can dispose of them. Your heart also: Controls the rhythm and speed of your heart rate. Maintains your blood pressure.
Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica
网页2024年9月25日 · 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 that is the center of the circulatory system in humans, other mammals, and birds. Learn more about the heart in this article.
The Anatomy of the Heart, Its Structures, and Functions
网页2024年8月1日 · The structure of the heart has four chambers: two atria and two ventricles, separated by valves, which pump oxygen-rich blood throughout the body.
Heart - Wikipedia
网页The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2] The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs. [3]
How the Heart Works - What the Heart Looks Like - NHLBI, NIH
网页2022年3月24日 · The heart is made of three layers of tissue. Endocardium is the thin inner lining of the heart chambers and also forms the surface of the valves. Myocardium is the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
Anatomy of the human heart - Wikipedia
网页The heart is a muscular organ situated in the mediastinum. It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system.
The Heart - TeachMeAnatomy
网页Vasculature of the Heart. Anatomy Video Lectures. If playback doesn't begin shortly, try restarting your device. From a channel with a health professional licensed in Germany. Videos you watch may be added to the TV's watch history and influence TV recommendations.
Heart Anatomy: Labeled Diagram and Quick Reference - Verywell …
网页2024年6月11日 · The heart is a vital, fist-sized muscular organ located slightly on the left side of the chest. It consists of four main chambers: two atria and two ventricles. Understanding its basic anatomy is crucial to understanding how it functions.
The Heart: Anatomy and 3D Illustrations - Innerbody
网页Explore the anatomy and core functions of the heart with Innerbody's interactive 3D model.