Circulatory System MCQs

HIV that causes AIDS first starts destroying

The pace setter in the heart is called

Cells involved in immune mechanism are

Cells formed in bone marrow include

Carbonic anhydrase occurs in

Wall of blood capillary is formed of

A vein possesses a large lumen because

A person with blood group A requires blood. The blood group which can be given is

Which one engulfs pathogens rapidly?

Haemophilia is