blood anatomy
What are the functions of blood?
Carries respiratory gases, nutrients, and hormones Helps body regulate temperature Carries wastes to the kidneys, which filter the blood
Why is blood considered to be a tissue?
Contains different types of cells (formed elements) Erythrocyte,Leukocytes, and Platelets.
How are blood cells formed?
Hematopoiesis—process by which blood cells are formed in red marrow
How are leukocytes structurally differentiated?
Neutrophil , Lymphocyte, Monocyte, Eosinophil, Basophil
What is the function of erythrocytes?
Oxygen-transporting cells. also called red blood cells. Contain hemoglobin , Hemoglobin molecule bears four oxygen molecules
What are the functions of leukocytes?
Protect the body from infectious microorganisms Function outside the bloodstream in loose connective tissue. originate in bone marrow
What is the function of red bone marrow?
Red marrow—actively generates new blood cells,Contains immature erythrocytes,In adults, red marrow is located Between trabeculae of spongy bone of axial skeleton
How is blood-type determined?
antigens
