Identify the correct statement
I. The impulse of the heart beat originates from SAN
II. Rate of the heart is determined by SAN
III. Bundle of His/AV bundle is present in the interventricular septum
IV. Atrio Ventricular Node (AVN) is situated in the lower left corner of the right auricle
Choose the correct option
Properties of leucocytes are
I. they are nucleated
II. they are denucleated like RBC
III. they are 6000-8000 of blood
IV. they are long lived
V. they are short lived
Choose the appropriate option with correct properties