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    • Endocardium

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      quizlet.com

      • The innermost layer of the cardiac wall is known as the endocardium. It lines the cavities and valves of the heart. Structurally, the endocardium is comprised of loose connective tissue and simple squamous epithelial tissue – it is similar in its composition to the endothelium which lines the inside of blood vessels.
      teachmeanatomy.info/thorax/organs/heart/heart-wall/
  1. Oct 20, 2024 · The base of the heart is located at the level of the third costal cartilage, as seen in Figure \(\PageIndex{1}\). The inferior tip of the heart, the apex, lies just to the left of the sternum between the junction of the fourth and fifth ribs near their articulation with the costal cartilages.

  2. Nov 10, 2024 · The heart wall is composed of three layers: the epicardium, myocardium, and endocardium. External Anatomy of the Heart. Apex and Base: The apex of the heart is the pointed lower tip that is oriented downward and to the left. It is formed by the tip of the left ventricle and is located at the level of the 5th intercostal space, typically ...

    • 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. Sep 14, 2021 · 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 \(\PageIndex{1}\).

  4. Aug 26, 2013 · The heart wall is composed of three layers: the epicardium, myocardium, and endocardium. Location of the heart in the mediastinum. The superficial epicardium is the visceral layer of the serous pericardium.

  5. The base of the heart is located at the level of the third costal cartilage, as seen in Figure 19.2. The inferior tip of the heart, the apex, lies just to the left of the sternum between the junction of the fourth and fifth ribs near their articulation with the costal cartilages.

  6. 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 6.1.1.

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