Hemolysis of RBCs: Causes and Related Diseases

What is a distinct characteristic of all WBCs?

They are only found in the blood
They contain hemoglobin
They have a nucleus (correct)
They are always bilobed

What is the main role of neutrophils in the body?

To produce histamine
To phagocytose foreign particles (correct)
To regulate body temperature
To produce antibodies

What is the typical shape of the nucleus in basophils?

Round
Multilobed
Bilobed
S-shaped (correct)

What is a function of eosinophils?

To detoxify foreign proteins (C) Signup and view all the answers

What is the percentage of neutrophils in the blood?

50-70% (C) Signup and view all the answers

What is the function of monocytes after they migrate to tissues?

To phagocytose foreign particles (B) Signup and view all the answers

What is a primary function of basophils in the body?

To contain histamine and cause inflammation (C) Signup and view all the answers

Where do the majority of lymphocytes originate from?

Lymph node, thymus, and spleen (A) Signup and view all the answers

What is the primary function of granulocytes and monocytes in the body?

To ingest invading organisms by phagocytosis (A) Signup and view all the answers

What is a characteristic of lymphocytes in the body?

They have a life span of weeks, months or years (B) Signup and view all the answers

What is a unique feature of monocytes in the body?

They are the largest cell in the body (D) Signup and view all the answers

What is the process by which WBCs move through tissues?

Ameboid motion (B) Signup and view all the answers

What is the name of the disease that affects newborns, in which antibodies from the mother destroy red cells in the baby?

Erythroblastosis fetalis (A) Signup and view all the answers

What is the average lifespan of a red blood cell in the circulatory system?

120 days (B) Signup and view all the answers

What is the main function of the cytoplasmic enzymes in red blood cells?

To maintain the cell membrane and membrane transport (C) Signup and view all the answers

What is the shape of an erythrocyte?

Biconcave disc (D) Signup and view all the answers

What is the main component of erythrocytes?

95% of the elements (D) Signup and view all the answers

What is the result of the decrease in metabolic activity of red blood cells with time?

They become more rigid and fragile (B) Signup and view all the answers

What percentage of people in the studied group have the O blood type?

47% (C) Signup and view all the answers

What is the major difference between the O-A-B system and the Rh system?

In the O-A-B system, spontaneous agglutinins occur, whereas in the Rh system, they almost never occur (C) Signup and view all the answers

What happens to an Rh -ve person if they receive Rh +ve blood by mistake?

Antibodies will be formed, but only after a second transfusion (D) Signup and view all the answers

Why are Rh -ve people susceptible to a transfusion reaction?

Because they have not been previously exposed to the Rh antigen (D) Signup and view all the answers

What is the function of agglutinins in the Rh system?

To cause transfusion reactions (D) Signup and view all the answers

What is the term for the antigen present on RBCs?

D antigen (D) Signup and view all the answers

What is the first step in the clotting process?

Rupture of the vessel or damage to the blood (C) Signup and view all the answers

What is the role of ionic Ca++ in the conversion of prothrombin to thrombin?

It is necessary for the conversion of prothrombin to thrombin (A) Signup and view all the answers

What is the final product of the clotting process?

Fibrin fibers (C) Signup and view all the answers

What is the role of thrombin in the clotting process?

It catalyzes the conversion of fibrinogen to fibrin fibers (B) Signup and view all the answers

What can lead to the initiation of clotting?

Trauma to the vascular wall and adjacent tissues (A) Signup and view all the answers

What is the function of prothrombin activator?

It causes the conversion of prothrombin to thrombin (B) Signup and view all the answers