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Jul 5, 2024 · 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.
- Kids
The heart is the organ, or body part, that pumps blood...
- Coronary Heart Disease
Coronary heart disease, disease characterized by an...
- Heart Rate
heart rate, the number of times the ventricles of the heart...
- Pulmonary Circulation
pulmonary circulation, system of blood vessels that forms a...
- Heart Murmur
heart murmur, condition characterized by prolonged noises...
- Students
Encyclopædia Britannica, Inc. A muscular, pear-shaped organ...
- Ventricle
In humans, the ventricles are the two lower chambers of the...
- Chambered Heart
Other articles where chambered heart is discussed:...
- Kids
Test your knowledge of the anatomy of the heart with this free multiple-choice picture quiz, and learn more about the anatomy of the human body - Quiz 1.
- Heart Definition
- Function of The Heart
- Heart Structure
- Quiz
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. It has four chambers which contract in a specific order, allowing the human heart ...
The heart pumps blood through our immense and complicated circulatory systems at high pressure. It is a truly impressive feat of engineering, as it must circulate about five liters of blood through a full 1,000 miles worth of blood vessels each minute! We will talk more about how the heart accomplishes this remarkable task under the “Heart Structur...
The heart’s unique design allows it to accomplish the incredible task of circulating blood through the human body. Here we will review its essential components, and how and why blood passes through them.
1. Which of the following is NOT true of the human heart? A. It has four chambers. B. It has a built-in “pacemaker” called the sinoatrial node. C. It is responsible for pumping oxygen-filled blood around the body. D.It is the only organ in the body you cannot live without. 2. Which of the following is NOT a layer of the heart? A. The myocardium B. ...
Jan 26, 2024 · 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.
Jun 4, 2018 · 1. Introduction. The current approach to understanding cardiac dynamics relies upon movements that adhere to the conventional topographical separation of cardiac muscle into the left ventricle, right ventricle, and septum.
- Gerald D Buckberg, Navin C Nanda, Christopher Nguyen, Mladen J Kocica
- 10.3390/jcdd5020033
- 2018
- J Cardiovasc Dev Dis. 2018 Jun; 5(2): 33.
Nov 3, 2023 · 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.
Jun 11, 2024 · 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.
