Body Fluids and Circulation

Assertion : SA node malfunctioning leads to disturbance of heart rate. Reason : SA node is the pacemaker of heart producing electric impulse for heart contraction.

Phagocytosis is shown by

Assertion : The cardiac output of an ordinary man and of an athlete is the same. Reason : It is impossible to alter the stroke volume as well as heart rate.

The cation/anion responsible for blood clotting is

The drugs used to quickly reduce the symptoms of allergy are

What is diapedesis?

Purkinje fibres are present in

Assertion: Pulmonary circulation consists of flow of deoxygenated blood from right ventricle to the lungs and flow of oxygenated blood from lungs to the left atrium. Reason: Systemic circulation consists of flow of…

Which of the following represents the action of insulin?

Assertion : $\mathrm{ADH}$ and RAAS work in response to low blood volume and blood pressure. Reason : ANF works in response to high blood volume and blood pressure.

A small rise in the body temperature of humans is corrected by (i) sweating (ii) dilating the skin arteries (iii) constricting the skin arteries (iv) increased tension of muscles in the skin?

When kidney of a person is damaged, he/she invariably suffers from anaemia because