D u m b a s s Y o u f u c k i n g r e t a r d s l u t
It is because the capillaries are conducting the gas exchange which will affect the rate of velocity
Nicotine constricts blood vessels and thus reduces blood flow with oxygen and nutrients to placenta and fetus.
Capillaries do not have valves to regulate blood flow. Veins are the vessel of the circulatory system that have veins to regulate blood flow.
Blood does not move faster through the capillaries. Blood flow is slowest in the capillaries.
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Capillaries
venuoles
capillaries!
The capillaries flow from an artery to a vein.
From the capillaries, blood will flow into the veins and pump the un-oxygenated blood back to the heart.
Veins are where the blood flow is the slowest. Blood flow velocity decreases from the aorta to the arteries to capillaries.
Blood clot