Hemoglobin Definition Anatomy

Hemoglobin definition is an iron containing respiratory pigment of vertebrate red blood cells that consists of a globin composed of four subunits each of which is linked to a heme molecule that functions in oxygen transport to the tissues after conversion to oxygenated form in the gills or lungs and that assists in carbon dioxide transport back to the gills or lungs after surrender of its oxygen. The most common type of abnormal hemoglobin and the basis of sickle cell trait and sickle cell anemia.

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Hemoglobin definition the oxygen carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues.

Hemoglobin definition anatomy. Medical definition of hemoglobin s. In its oxygenated state it is called oxyhemoglobin and is bright red. When the cells lose oxygen it is called deoxyhemoglobin.

Hemoglobin is the primary protein found in red blood cells or erythrocytes. Hemoglobin forms an unstable reversible bond with oxygen. Hemoglobin also spelled haemoglobin iron containing protein in the blood of many animalsin the red blood cells erythrocytes of vertebrates that transports oxygen to the tissues.

In the reduced state it is called deoxyhemoglobin and is purple blue. Hemoglobin s differs from normal adult hemoglobin called hemoglobin a only by a single amino acid substitution a valine replacing a glutamine in the 6th position of the beta chain of globin. The oxygen carrying pigment and predominant protein in the red blood cells.

Medical definition of hemoglobin. Oxygen that diffuses into the cells is called oxyhemoglobin. Occurs in reduced form deoxyhemoglobin in venous blood and in combination with oxygen oxyhemoglobin in arterial blood.

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