Question #e7291
1 Answer
Jun 27, 2017
Yes
Explanation:
The purpose of valves is allow the blood to move in one direction which is towards the heart. The muscles also provide the extra push to get the blood flowing in one direction since the speed of blood in the veins is very slow as compared to the blood in the arteries.
Ever wondered why people tell you that sitting for long periods of time is bad for you?
