Feb 15, 2020
Day 33
Post#33 Feb 13, 2020 Thurs 23:33 PM
Why is blood taken from veins, not arteries.
To understand it fully, i would suggest reading my previous post. If you have already read that, this post should be super-easy and super-interesting to you.
Reasons are:
1. Veins are closer to skin, so you don’t need to suffer excess pain due to deep needle prick.
2. Veins walls are thicker. You know why.
3. Blood pressure in vein is lower than that of arteries. You would definetly not want a stream of blood coming out after an injection.
I guess I won’t we wrong to relate why deeper cuts blood flow doesn’t stop easily. Probably you must have cut an artery.