Heart: Anatomy & Function - Cleveland Clinic
What is the function of the heart? 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10月31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.
19.1 Heart Anatomy - Anatomy and Physiology 2e | OpenStax
Describe the internal and external anatomy of the heart; Identify the tissue layers of the heart; Relate the structure of the heart to its function as a pump; Compare systemic circulation to pulmonary circulation; Identify the veins and arteries of the coronary circulation system
Heart anatomy: Structure, valves, coronary vessels | Kenhub
2023年11月3日 — Overview of the anatomy and functions of the heart. 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 — 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.
The Heart: Anatomy and 3D Illustrations - Innerbody
2024年11月22日 — 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.
Anatomy of the human heart - Wikipedia
It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system.
Human cardiovascular system | Description, Anatomy,
human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the blood is propelled by a muscular heart.
Chapter 19. The Cardiovascular System: The Heart – Anatomy & Physiology
19.1 Heart Anatomy. 19.2 Cardiac Muscle and Electrical Activity. 19.3 Cardiac Cycle. 19.4 Cardiac Physiology. 19.5 Development of the Heart. ... 25.7 Physiology of Urine Formation: Regulation of Fluid Volume and Composition. 25.8 Urine Transport and Elimination. 25.9 The Urinary System and Homeostasis.
The heart: Anatomy, how it works, and more - Medical News Today
2020年9月30日 — Here, learn about the structure of the heart, what each part does, and how it works to support the body. We also explore the electrical impulses and the role of CPR.