Lesson 3: The Cardiovascular System Chapter 5: Structures of the Blood System

blood

composed of living cells that support and maintain our body tissues

erythrocytes

red blood cells that are filled with hemoglobin and carry oxygen from lungs to the rest of the body

leukocytes

white blood cells that defend against infection

thrombocytes

platelets that helps blood clot when injuries occur

antigen

substance that stimulates an immune response if they are foreign to the body

blood type a

antigen a on the surface; can only receive blood from type a and type o

blood type b

has antigen b on the surface; can only receive bllod from type b and type o

blood type ab

has antigen a and b on the surface; can only receive blood from type a, type b, type ab and type o

blood type o

has no antigen on the surface; can only receive blood from type o

8 blood types

a+, a-, b+, b-, ab+, ab-, o+ and o-

crossmatching

small samples of the recipient's and donor's blood are mixed to check compatibility

Rh factoris

a specific protein found on the surface of red blood cells; inclusion of this creates 8 blood types

type o+

most common blood type in america

type ab+

universal recipient, can receive blood from all blood types

type o-

universal donor, can donate to all blood types