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Oct 31, 2024 · The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers. The upper chamber is called an atrium (or auricle), and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular ventricles pump the blood out of the ...
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Each half is divided into two hollow sections called...
- 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:...
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It is formed mostly by the left atrium and a small posterior portion of the right atrium. The cardiac base is positioned at the level of the third costal cartilage. It is separated from the fifth through eighth thoracic vertebrae (T5 - T8) by the esophagus, thoracic duct and descending thoracic aorta.
Jul 30, 2022 · The great veins, the superior and inferior venae cavae, and the great arteries, the aorta and pulmonary trunk, are attached to the superior surface of the heart, called the base. The base of the heart is located at the level of the third costal cartilage, as seen in Figure 1.
Figure \(\PageIndex{4}\): This diagram represents the structure and functions of the different types of blood vessels in the cardiovascular system. Arteries carry blood from the heart and to capillaries. Veins carry blood from the capillaries back to the heart.
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.
Nov 3, 2023 · The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior:
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Aug 29, 2024 · Use our GCSE Biology revision notes to learn about the structure of the circulatory system and heart. Understand how heart rate is controlled. Learn more.
