Zoology - Body Fluids and Circulation Question with Solution | TestHub

The increase in the number of erythrocytes or RBCs is called erythrocytosis or polycythaemia. Monocyte are also called scavenger leucocytes since they can remove cellular debris. The left atrio-ventricular valve has two cusps and hence it is called biscuspid valve. It is also called mitral valve. Myocardial infarction is death of cardiac muscles while myocardial ischaemia is reduced blood supply to cardiac muscle.