Leukocytes: The Body's Protectors

What is the main reason aspirin is often recommended to treat cardiovascular disease?

It decreases the number of erythrocytes
It promotes agglutination of antigens
It decreases coagulation (correct)
It increases the production of antibodies

What causes clumps of erythrocytes called agglutination?

Preformed antibodies
Presence of A and B antigens (correct)
Hemolysis
Lack of Rh D antigen

Why is it best to match and transfuse identical blood types?

To avoid the formation of RhoGAM antibodies
To prevent hemolysis
To minimize the risk of agglutination (correct)
To ensure compatibility of glycoproteins

What is the significance of Rh antibodies in Rh negative people?

They are only created after exposure to Rh positive blood (A) Signup and view all the answers

What is the function of platelets in the blood?

To coagulate and stop bleeding (C) Signup and view all the answers

What is the primary function of White Blood Cells (WBC) in the blood?

To protect the body from external and internal threats like bacteria and viruses (C) Signup and view all the answers

What does the hematocrit measure in the blood?

The percentage of Red Blood Cells (erythrocytes) in blood (D) Signup and view all the answers

Why is blood a little warmer than normal body temperature?

Due to the presence of hemoglobin reacting with oxygen (C) Signup and view all the answers

What is the main function of erythrocytes?

Oxygen and carbon dioxide transport (D) Signup and view all the answers

What is the molecule made of 4 proteins and 4 irons in erythrocytes?

Hemoglobin (C) Signup and view all the answers

What is the most common type of anemia?

Iron deficient anemia (A) Signup and view all the answers

What is the rare condition where RBC stem cells are insufficient?

Aplastic anemia (D) Signup and view all the answers

Which plasma protein is important for clotting?

Fibrinogen (C) Signup and view all the answers

Where does hemopoiesis occur in the body?

Red marrow in bones (C) Signup and view all the answers

Which factor stimulates erythrocyte production?

Erythropoietin (D) Signup and view all the answers

Where do B cells mature?

Bone marrow (A) Signup and view all the answers

Which type of cells lead toward immunity from disease?

Lymphoid cells (C) Signup and view all the answers

What causes polycythemia?

High plasma levels (C) Signup and view all the answers

What is the shortage of RBC stem cells known as?

Aplastic anemia (B) Signup and view all the answers

What is the primary function of leukocytes?

To protect the body (D) Signup and view all the answers

Which type of leukocyte is involved in intensifying inflammation like mast cells?

Basophil (A) Signup and view all the answers

What is the function of B cells among the lymphocytes?

Produce antibodies (A) Signup and view all the answers

What is the primary role of platelets in hemostasis?

Form a plug to prevent excessive bleeding (B) Signup and view all the answers

What can be a consequence of thrombocytosis?

Too many blood clots and potential fatality (C) Signup and view all the answers

What is the primary function of coagulation in the blood clotting process?

To provide a more durable repair with a mesh of fibrin (D) Signup and view all the answers

What is the role of plasma anticoagulants in the blood clotting process?

To limit clotting or help stop clotting (A) Signup and view all the answers

What is the cause of the extrinsic pathway in blood clotting?

Trauma (A) Signup and view all the answers