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Nov 3, 2023 · Heart anatomy. 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: The right margin is the small section of the right atrium that extends between the superior and inferior vena cava .
- Surface Projections of The Heart
The surface projections of the heart represent points on the...
- Ventricles
Review of cardiac anatomy The heart is a mediastinal...
- Coronary Arteries
Coronary arteries and cardiac veins. The heart is a...
- Ductus Arteriosus
Ligamentum arteriosum (also known as Ligament of Botallo or...
- Atria
Basic anatomy of the heart. The heart is at the center of...
- Innervation of The Heart
The innervation of the heart refers to the network of nerves...
- Diagrams, Quizzes and Worksheets of The Heart
Try our interactive heart anatomy quizzes to see where your...
- Heart Valves
Understanding heart valves anatomy is important in grasping...
- Surface Projections of The Heart
3 days ago · 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.
- The Editors of Encyclopaedia Britannica
- In humans, the heart is situated between the two lungs and slightly to the left of center, behind the breastbone. It rests on the diaphragm, the mu...
- The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and ano...
- The pumping of the heart, or the heartbeat, is caused by alternating contractions and relaxations of the myocardium. These contractions are stimula...
- The rhythmic noises accompanying the heartbeat are called heart sounds. The two distinct sounds are heard, a low, slightly prolonged “lub” (first s...
The heart has the shape of a pyramid, with its apex pointing towards the left nipple while its base forms the posterior surface of the heart. Other surfaces are the anterior, inferior (or diaphragmatic), and two pulmonary surfaces facing the lungs.
The heart is a conical hollow muscular organ situated in the middle mediastinum and is enclosed within the pericardium. It is positioned posteriorly to the body of the sternum with one-third situated on the right and two-thirds on the left of the midline. The heart measures 12 x 8.5 x 6 cm and weighs ~310 g (males) and ~255 g (females).
Jan 26, 2024 · Learn about the parts and functions of your heart, the main organ of your cardiovascular system. Find out how your heart pumps blood, controls its rhythm and pressure, and works with other body systems.
Real-time MRI of the human heart The human heart is in the middle of the thorax, with its apex pointing to the left. The human heart is situated in the mediastinum, at the level of thoracic vertebrae T5-T8. A double-membraned sac called the pericardium surrounds the heart and attaches to the mediastinum.
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.
