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  1. Feb 20, 2023 · Middle mediastinum: The part that contains your heart. Posterior mediastinum: The part posterior to (behind) your heart. A more recent classification system divides the mediastinum into three parts with different names: Prevascular compartment: The part in front of your heart. Visceral compartment: The middle part that contains your heart ...

  2. Apr 20, 2023 · Posterior interventricular sulcus – located on the posterior surface of the heart and represents the separation of the left and right ventricle. It contains the posterior interventricular artery and the middle cardiac vein.

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    • The Nose and Nasal Cavities Provide Airways for Respiration. The nasal cavities are chambers of the internal nose. In front, the nostrils, or nares, create openings to the outside world.
    • The Paranasal Sinuses Surround the Nasal Cavities. The paranasal sinuses are four paired, air-filled cavities found inside bones of the skull. These sinuses are named for the skull bones that contain them: frontal, ethmoidal, sphenoidal, and maxillary.
    • The Pharynx Connects the Nasal and Oral Cavities to the Larynx and Esophagus. The pharynx, or throat, is shaped like a funnel. During respiration, it conducts air between the larynx and trachea (or “windpipe”) and the nasal and the oral cavities.
    • The Larynx and Vocal Cords Allow Us to Breathe and Talk and Sing. The larynx connects the lower part of the pharynx, the laryngopharynx, to the trachea.
    • 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!)
  3. Oct 25, 2022 · heart chambers. 1. 2. 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.

  4. Jun 11, 2024 · The heart is the pump that moves blood around your body. 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.

  5. On the posterior surface of the heart, the right coronary artery gives rise to the posterior interventricular artery, also known as the posterior descending artery. It runs along the posterior portion of the interventricular sulcus toward the apex of the heart, giving rise to branches that supply the interventricular septum and portions of both ...

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