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The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system. [1] The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs. [2] In humans, the heart is approximately the size of a closed fist and is located ...
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
The two stars of Netflix's "Nobody Wants This" share what it takes to create on-screen chemistry and their roots as early aughts TV icons.
Heart development, also known as cardiogenesis, refers to the prenatal development of the heart. This begins with the formation of two endocardial tubes which merge to form the tubular heart, also called the primitive heart tube. The heart is the first functional organ in vertebrate embryos.
January 1843. " The Tell-Tale Heart " is a short story by American writer Edgar Allan Poe, first published in 1843. It is told by an unnamed narrator who endeavors to convince the reader of the narrator's sanity while simultaneously describing a murder the narrator committed. The victim was an old man with a filmy pale blue "vulture-eye", as ...
First heart sound: caused by atrioventricular valves – Mitral (M) and Tricuspid (T). Second heart sound caused by semilunar valves – Aortic (A) and Pulmonary/Pulmonic (P). Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it. Specifically, the sounds reflect the turbulence created when the ...
The Park. The Park is a first-person psychological horror video game developed and published by Funcom. [1] The game was released for Microsoft Windows via Steam on October 27, 2015 and is a spin-off of an earlier Funcom game, The Secret World. [2][3] It was released for PlayStation 4 and Xbox One on May 3, 2016 and Nintendo Switch on October ...
The general structure of a cardiac glycoside consists of a steroid molecule attached to a sugar and an R group. [4] The steroid nucleus consists of four fused rings to which other functional groups such as methyl, hydroxyl, and aldehyde groups can be attached to influence the overall molecule's biological activity. [4]