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 the protein that is responsible for turning megakaryocytes into doughnut-shaped red blood cells. Hemoglobin is the protein that is either found in decreased amounts or totally absent in persons with hemophilia. This deficiency prevents normal blood clotting. Hemoglobin, a protein found in white blood cells, carries oxygen from the lungs to the individual cells.