00:01
This video will discuss blood vessels that are present in the human body.
00:09
These blood vessels, these are divided into two categories, veins and arteries.
00:21
Artrees are the blood vessels that carry blood away from the heart, whereas veins are the blood vessels that bring blood towards arteries.
00:51
These are further divided into small arteries, arteries, artrioles, capillaries, then capillaries again join to form venules.
01:23
Venules, they drain blood into the small veins and small veins they drain their carbon dioxide rich blood into the large veins that carry the blood towards the heart.
01:40
Arteries, they receive blood directly from the heart, that is why they experience more pressure.
01:50
For this reason, arteries have thick walls, thick and elastic walls, whereas veins they carry blood upwards towards the heart.
02:08
That is why they have valves.
02:14
Among these vessels, arterioles are the one that experience greatest resistance.
02:26
Resistance to flow or blood flow.
02:33
Let's discuss its reason...