CCST4082 Chapter 4

_______ maintain(s) osmotic pressure and pH in blood, while ________ is important in blood clotting.

• Globulins, fibrinogen

• Albumin, fibrinogen

• Globulins, hemoglobin

• Albumin, hemoglobin

• Globulins, albumin

Which of the following substances should be found in plasma but not in serum?

• Urea

• Amino acids

• Oxygen

• Glucose

• Factor X

The function of blood clotting factor XIII is to

• covert prothrombin into thrombin

• activate factor X

• stabilize the insoluble fibrin meshwork

• promote the aggregation of blood platelets

• prevent vitamin K deficiency

The following statements describe some processes that are necessary for the formation of a platelet plug:

(1) Platelets become sticky.
(2) Platelets aggregate.
(3) Collagen fibers are exposed in an injured blood vessel. (4) Platelets adhere to the injured blood vessel.
(5) Platelets secrete ADP.

Which of the following shows the correct sequence of events in platelet plug formation?

• (1)→(2)→(3)→(4)→(5)

• (3)→(4)→(5)→(1)→(2)

• (5)→(1)→(4)→(2)→(3)

• (4)→(5)→(1)→(3)→(2)

• (2)→(3)→(5)→(4)→(1)

Red blood cells are gengerated in the _________ from some precursor cells called hematopoietic stem cells. This process is activated by _______ released by the kidneys in response to low oxygen levels in the blood.

• thymus; erythropoietin

• bone marrow; bilirubin

• bone marrow; erythropoietin

• spleen, erythropoietin

• bone marrow, albumin

Which of the following is incorrect?

• Hemophilia is a genetic disease caused by mutation of blood clotting factor genes.

• Blood clotting factor genes are located on the Y chromosome.

• Type A hemophilia is the most common one and it is due to a deficiency of the blood clotting factor VIII.

• Type A hemophilia is the most common one and it is due to a deficiency of the blood clotting factor IX.

• Vitamin K deficiency occurs when babies cannot stop bleeding becasue their blood does not have enough vitamin K to form factor X and prothrombin.

Which of the following substances should not be found in serum?

• Hormones

• Antibodies

• Oxygen

• Urea

• White blood cells

When an injury causes a blood vessel wall to break, which of the following is a cell-like blood particle that is activated to help the blood clot? 

• Collagen

• Fibrin

• Albumin

• Platelet

• ADP

Which of the following is the correct sequence of events leading to blood clotting?

• vasodialtion, formation of a platelet plug, formation of a blood clot

• formation of a platelet plug, vasoconstriction, formation of a blood clot

• vasoconstriction, formation of a blood clot, formation of a platelet plug

• vasoconstriction, formation of a platelet plug, formation of a blood clot

Which of the following organ is responsible for storing blood cells and destroying old RBC?

• Liver

• Spleen

• Lung

• Kidney

• Bone marrow