Pathology. Pathology is the precise study and diagnosis of disease. The word pathology is from Ancient Greek ÏÎ¬Î¸Î¿Ï, pathos which may be translated into English as either experience or suffering. and -Î»Î¿Î³Î¯Î±, -logia, An account of or the study of.
Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled. Blood appears red because of the large number of red blood cells, which get their color from the hemoglobin.
Hemoglobin is a molecule that is within a red blood cell. Each red blood cell is about one third hemoglobin by volume.Each red blood cell can carry four hemoglobin molecules. Hemoglobin is responsible for the color of blood. When they put that thing on the tip of your finger at the ER they are measuring the percentage of hemoglobin's that are in red blood cells.ach red blood cell is about one third hemoglobin by volume. Each red blood cell can carry four hemoglobin molecules. Hemoglobin is responsible for the color of blood.