Heart: Anatomy & Function - Cleveland Clinic
2024年1月26日 · What is the heart? The heart is a fist-sized organ that pumps blood throughout your body. It’s your circulatory system ’s main organ. Muscle and tissue make up this powerhouse organ. Your heart contains four muscular sections (chambers) that …
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.
How the Heart Works - What the Heart Looks Like - NHLBI, NIH
2022年3月24日 · Anatomy of the interior of the heart. This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor blood, shown in blue-purple, flows into the heart and is pumped out to the lungs.
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 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.
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.
Heart Anatomy: Labeled Diagram and Quick Reference - Verywell …
2024年6月11日 · Understanding its basic anatomy is crucial to understanding how it functions. This article provides a comprehensive look at the heart's structure with a detailed, labeled diagram and realistic photos, guiding you through each part and its role in the circulatory system.
The Heart - TeachMeAnatomy
The Surfaces and Borders of the Heart. The Valves of the Heart. Vasculature of the Heart. Popular. Nerves of the Lower Limb The Superficial Fibular (Peroneal) Nerve. by Mini Sardar. Encyclopaedia Iliococcygeus. by Aren Mnatzakanian. Encyclopaedia Vastus Medialis. by Roxanne Salkeld. TeachMeAnatomy. Part of the TeachMe Series. The medical ...
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. The heart is a muscular organ about the size of a closed fist that functions as the body's circulatory pump.
Heart (Human Anatomy): Overview, Function & Structure | Biology
2019年10月4日 · 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 left side of the chest, beneath the breastbone. The heart is composed of smooth muscle.
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.