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Sep 7, 2024 · The triceps are posterior to biceps brachii. The patella is located anteriorly in the lower limb. Superior and Inferior. These terms refer to the vertical axis. Superior means ‘higher’, inferior means ‘lower’. The head is superior to the neck; the umbilicus is inferior to the sternum.
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- 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
- Heart valves. Heart valves separate atria from ventricles, and ventricles from great vessels. The valves incorporate two or three leaflets (cusps) around the atrioventricular orifices and the roots of great vessels.
- Blood flow through the heart. The blood flow through the heart is quite logical. It happens with the heart cycle, which consists of the periodical contraction and relaxation of the atrial and ventricular myocardium (heart muscle tissue).
- Coronary circulation. The heart must also be supplied with oxygenated blood. This is done by the two coronary arteries: left and right. Heart muscles work constantly (thank goodness!)
Nov 10, 2024 · Last updated on November 10, 2024. The heart is a muscular organ that pumps blood throughout the body via the circulatory system. It is approximately the size of a fist and consists of four chambers: two atria and two ventricles. The heart is composed of specialized muscle tissue, known as myocardium, and is encased within a double-layered ...
Apr 20, 2023 · Posterior (base of the pyramid) – Left atrium. Inferior (or diaphragmatic) – Left and right ventricles. Right pulmonary – Right atrium. Left pulmonary – Left ventricle. Borders. Separating the surfaces of the heart are its borders. There are four main borders of the heart: Right border – Right atrium.
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Jun 11, 2024 · It has four main parts: two upper chambers called atria and two lower chambers called ventricles. These parts work together to get oxygen-rich blood to your body and oxygen-poor blood back to your heart.
Oct 20, 2024 · The shape of the heart is similar to a pinecone, rather broad at the superior surface (the base, on the posterior side) and tapering to the apex (Figure 17.2.1 17.2. 1). The apex of the heart is inferior and to the left while the base of the heart is superior and posterior.
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Oct 25, 2022 · The superior chambers consist of the right atrium and left atrium (plural, atria: L., corridor). which lie primarily on the posterior side of the heart. [Interior view / Posterior view] Have you been making any of the common anatomy learning mistakes? Find out! The right and left atrium of the heart. 1. 2. 3. 4. 5. 6.
