Question

given below is the simplified pathway of the circulatory system of man...???... answer the all questions...

Answer 1

a q1     1 pulmonary vein

 3 hepatic portal vein         6 hepatic vein       7 posterior vena cava

q2 coronary arteries

q3 draw the fig of an artery

q4      artery (4)                               vein(5)

  wall thick and more            wall thin and less muscular

muscular