Valves are necessary in veins but not in arteries because

  • A

    Blood flows with greater force in veins

  • B

    Blood in veins flows without jerk

  • C

    Blood from heart may not be pushed back into veins

  • D

    Pressure in veins is low, which can flow the blood

Similar Questions

The heart continuous beating normally even when its nervous supply is completely obliterated because it is

Describe external structure of heart. 

Definition / Explanation :

$(1)$ $AV$ valve (Tricuspid) 

$(2)$ Mitral (Bicuspid) valves 

Match the items given in Column $I$ with those in Column $II$ and select the correct option given below:

Column-$I$

Column-$II$

$(a)$ Tricuspid valve

$(i)$ Between left atrium and left ventricle

$(b)$ Bicuspid valve

$(ii)$ Between right ventricle and pulmonary artery

$(c)$ Semilunar valve

$(iii)$  Between right atrium and right ventricle

  • [NEET 2018]

The coronary sinus in the heart is situated along its