Heart: Anatomy & Function - Cleveland Clinic
2024年1月26日 · Your heart is slightly on the left side of your body. It sits between your right and left lungs. The left lung is slightly smaller to make room for the heart in your left chest. Your rib cage protects your heart. What does your heart look like? Your heart looks a little bit like an upside-down pyramid with rounded edges.
Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica
6 天之前 · 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.
Heart anatomy: Structure, valves, coronary vessels | Kenhub
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 - Wikipedia
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
2022年3月24日 · 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 valves, which make sure that the blood keeps flowing in the right direction.
Anatomy of the human heart - Wikipedia
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.
Anatomy of the Human Heart - SpringerLink
6 天之前 · The internal anatomy of the heart reveals four chambers composed of cardiac muscle or the myocardium. The two upper chambers (or atria) function mainly as collecting chambers; the two lower chambers (ventricles) are much stronger and function to pump blood out of the heart. The role of the right atrium and ventricle is to collect blood from the ...
Anatomy, Thorax, Heart - StatPearls - NCBI Bookshelf
2023年8月28日 · The heart is a muscular organ situated in the center of the chest behind the sternum. It consists of four chambers: the two upper chambers are called the right and left atria, and the two lower chambers are called the right and left ventricles.
Heart Anatomy: Diagram, Blood Flow and Functions - MedicineNet
Learn about the heart's anatomy, how it functions, blood flow through the heart and lungs, its location, artery appearance, and how it beats.
Heart Anatomy: Labeled Diagram and Quick Reference - Verywell …
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.