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: Anatomy & Function - Cleveland Clinic
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
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.
How the Heart Works - What the Heart Looks Like - NHLBI, NIH
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.
The Heart - TeachMeAnatomy
The Surfaces and Borders of the Heart.
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.
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. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary …
Heart - Wikipedia
Structure. Human heart during an autopsy. Computer-generated animation of a beating human heart. Cardiology video. Location and shape. Real-time MRI of the human heart. The human heart is in the middle of the thorax, with its apex pointing to the left. [17]
Heart Pictures, Diagram & Anatomy | Body Maps - Healthline
2015年3月10日 · The heart is a mostly hollow, muscular organ composed of cardiac muscles and connective tissue that acts as a pump to distribute blood throughout the body’s tissues. The heart is the epicenter...
The Heart: Anatomy and 3D Illustrations - Innerbody
4 天之前 · Explore the anatomy and core functions of the heart with Innerbody's interactive 3D model.