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Hace 4 días · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and birds. Learn more about the heart in this article.
Hace 4 días · In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles. Commonly, the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart.
11 de jun. de 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.
Hace 4 días · The heart is a four-chambered "double pump," where each side (left and right) operates as a separate pump. The left and right sides of the heart are separated by a muscular wall of tissue known as the septum of the heart.
28 de jun. de 2024 · It is best to remember the four chambers and four valves in order of the series that blood travels through the heart: venous blood returning from the body drains into the right atrium via the SVC , IVC and coronary sinus. the right atrium pumps blood through the tricuspid valve into the right ventricle.
18 de jun. de 2024 · In this chapter, we will describe the formation of the ventricular septum in the normal heart, as well as the molecular mechanisms leading to the four main anatomic types of ventricular septal defects: outlet, inlet, muscular, and central perimembranous, resulting from failure of development of the different parts of the ventricular ...
18 de jun. de 2024 · The pattern of blood flow through the four-chamber heart highlights the striking anatomical and functional asymmetries that have evolved to separate the systemic and pulmonary circulation.
