Blood Components Quiz

What percentage of leukocytes in the blood are neutrophils?

• 1%

• 25-33%

• 60-70%

• 3-8%

Which type of leukocyte is primarily involved in targeting parasitic worms and allergies?

• Neutrophils

• Eosinophils

• Basophils

• Monocytes

What is the main function of platelets?

• Release toxic chemicals

• Involved in reducing blood loss

• Release histamine and heparin

• Become macrophages

How long do platelets live for?

• 1-2 days

• 3-4 days

• 5-6 days

• 7-8 days

What is the term used to describe the series of reactions to stop bleeding?

• Platelet plug

• Coagulation cascade

• Haemostasis

• Vascular spasm

Which of the following is NOT a stage in the process of haemostasis?

• Vascular spasm

• Platelet plug formation

• Coagulation

• Lymphocyte activation

What is the role of basophils among the leukocytes?

• They release toxic chemicals.

• They are involved in parasitic worm infections.

• They release histamine and heparin.

• They become macrophages.

What is the role of Vitamin K in the clotting process?

• It activates prothrombin activator

• It is involved in the synthesis of 4 clotting factors

• It converts prothrombin into thrombin

• It dissolves clots

Which pathway to clotting is shorter and faster?

• Intrinsic pathway

• Extrinsic pathway

• Common pathway

• Clot dissolution pathway

What is the function of prothrombin activator?

• It activates thrombin

• It converts fibrinogen into fibrin

• It activates prothrombin

• It dissolves clots