The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
The heart is an organ found in every vertebrate.It is a very strong muscle. It is on the left side of the body in humans and is about the size of a fist. It pumps blood throughout the body.
History. American medical researcher Simon Flexner was one of the first people to mention the possibility of heart transplantation. In 1907, he wrote the paper "Tendencies in Pathology," in which he said that it would be possible one day by surgery to replace diseased human organs — including arteries, stomach, kidneys and heart.
An organ is a group of tissues with similar functions. Plant life and animal life rely on many organs that coexist in organ systems.. A given organ's tissues can be broadly categorized as parenchyma, the tissue peculiar to (or at least archetypal of) the organ and that does the organ's specialized job, and stroma, the tissues with supportive, structural, connective, or ancillary functions.
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Generally, the organs are simply transposed through the sagittal plane. The heart is located on the right side of the thorax, the stomach and spleen on the right side of the abdomen and the liver and gall bladder on the left side. The heart's normal right atrium occurs on the left, and the left atrium is on the right.
Organs, structured collections of cells with a specific function, mostly sit within the body, with the exception of skin. Examples include the heart, lungs and liver. Many organs reside within cavities within the body. These cavities include the abdomen (which contains the stomach, for example) and pleura, which contains the lungs.
Heart failure is a pathophysiological state in which cardiac output is insufficient to meet the needs of the body and lungs. The term "congestive heart failure" is often used, as one of the common symptoms is congestion, or build-up of fluid in a person's tissues and veins in the lungs or other parts of the body.
An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body, and is made up of distinct tissues . The nervous system in its place in the body
Offal (/ ˈ ɒ f əl /), also called variety meats, pluck or organ meats, is the organ of a butchered animal.As an English mass noun, the term "offal" has no plural form.The word does not refer to a particular list of edible organs, which varies by culture and region, but usually excludes muscle.