Question

why do substaneos blood vessels (vein) bulg on the side away from the heart? ​

Answer 1

Answer:

the sub cutaneous receptors bulged on the side away from the heart when the hand was tied. ... hence the rate of blood near the hand becomes increase by the increase in pressure and the blood stops at a pointb where we tied. due this reason the vessels get bulge.

Answer 2

Answer:

The subcutaneous receptors bulged on the side away from the heart when the hand was tied but the blood comes from heart still continues. hence the rate of blood near the hand becomes increase by the increase in pressure and the blood stops at a pointb where we tied. Due this reason the vessels get bulge

Explanation: