The middle layer of the veins is……...than that of arteries.
a) thicker
b) thinner
c) same
d) none of these
Which of the following blood vessels don’t have to bear pressure………..
a) arterioles
b) arteries
c) veins
d) all of them
Which of the following blood vessels have valve?
a) arterioles
b) arteries
c) veins
d) capillaries
The largest veins in the body are…….
a) femoral vein
b) renal vein
c) pulmonary vein
d) vena cava
There are……..vena cava in the human body.
a) two
b) three
c) four
d) five
Superior vena cava brings deoxygenated blood from………
a) upper regions of the body
b) head
c) lower regions of the body
d) both a and b
