NEET PG DENTAL EXAM

HISTOLOGY

BLOOD VESSELS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Low blood pressure in veins is due to
A
their large lumen relative to the diameter.
B
lower blood volume.
C
a lot of pressure had been lost at the capillary bed.
D
All of the above.
Explanation: 

Detailed explanation-1: -The venous side of the circulation is a low-pressure system compared with the arterial side. Pressure within the named veins is usually between 8 and 10 mmHg, and CVP is  0–6 mmHg (3, 9). Therefore, the pressure gradient between the periphery and the right atrium is small.

Detailed explanation-2: -Explanation: In the general circulation, the highest blood pressure is found in the aorta and the lowest blood pressure is in the vena cava.

There is 1 question to complete.