CH 9 Flashcards
The Cardiovascular System – Blood
What happens to a red blood cell after it is formed?
- It is eventually broken down by the liver and spleen.
- It enters the circulation.
Which of the following statements is (are) true concerning hemoglobin?
- composed of four amino acid chains and a heme group.
- complex protein.
- contains iron.
- is a solute in the cytoplasm of erythrocytes.
A pregnant woman is Rh-positive, and the father is Rh-negative. What will occur?
The baby should develop normally.
Which mothers need to be worried about erythroblastosis fetalis?
Rh− mothers having Rh+ babies
What happens in hemostasis?
- Platelet plug formation usually occurs early in the process.
- Clotting factors activate other clotting factors to cause a reaction cascade.
What is an embolus?
A moving, unnecessary clot
What role do white blood cells play in the various functions of the blood?
Protection
The formed elements in blood include all of the following except ______.
plasma
How is blood type determined?
By mixing the serum of blood with different types of serum to see if agglutination occurs
How is blood type determined?
By the antigens on the blood cell’s surface
What is hemopoiesis?
The production of blood cells
What is the function of thrombocytes?
To form platelet plugs and release clotting factors
If Diane has type O blood, what type of blood can she receive?
O
What happens when two non-compatible blood types are mixed together?
Agglutination
If you spin a tube of blood in a centrifuge, what is the bottom layer composed of?
Red blood cells
