Body Fluids And Circulation

Osmotic pressure is maintained by albumin

The count of neutrophils or heterophils is 60-70% of total leucocytes, .i.e., of blood. Eosinophils or acidophils or oxyphils make 1-5% of total leucocyte count, .i.e., while basophils or cyanophils count is 0.5-2.7% of total leucocytes, ie, of blood.

Ventricle is either of the two lower chambers of the heart, which have thick muscular walls. The left ventricle, which is thicker than the right, receives blood from the pulmonary vein via the left atrium and pumps it into the aorta. The right ventricle pumps blood received from the venae cavae (via the right atrium) into the pulmonary artery.

Stroke volume is the amount of blood ejected by the left ventricle in one contraction. The stroke volumes for each ventricle are generally equal, both being approximately 70 mL in a healthy 70-kg man.

Vitamin-K is necessary for the formation of prothrombin in the liver of human beings and hence, helps in the process of blood coagulation.

The right atrium receives the openings of superior vena cava, inferior vena cava and coronary sinus. The opening of the coronary sinus has coronary or Thebesian valve. Thebesian valve is a semicircular fold of the inner membrane lining of the right atrium, at the orifice of the coronary sinus.