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Blood Vessel Diseases

6 videos
The ancient Greeks thought blood vessels actually carried air throughout the body. Although we know better today, many people are still often confused with the specifics! We now know that the vessels carry blood instead, and we are able to distinguish between two different types: arteries and veins. Learn about how arteries differ from veins and how vessels can get damaged over time.

Arteries vs. veins - what's the difference?

VIDEO 11:09 minutes
Learn some important differences between arteries (high pressure/low volume) and veins (low pressure/high volume). Rishi is a pediatric infectious disease physician and works at Khan Academy.

Arteriosclerosis, arteriolosclerosis, and atherosclerosis

VIDEO 9:18 minutes
Learn the difference between Arteriosclerosis, Arteriolosclerosis, and Atherosclerosis! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Atherosclerosis - part 1

VIDEO 12:54 minutes
See how Atherosclerosis (Fat in the blood vessel wall) hardens the arterial wall and makes it harder for blood to flow through. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Atherosclerosis - part 2

VIDEO 8:59 minutes
See how Atherosclerosis (Fat in the blood vessel wall) hardens the arterial wall and makes it harder for blood to flow through. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Arteriolosclerosis - part 1

VIDEO 11:14 minutes
See how hyaline arteriolosclerosis (Protein in the arterial wall) causes hardening of the blood vessels. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Arteriolosclerosis - part 2

VIDEO 5:11 minutes
See how hyperplastic arteriolosclerosis (Protein in the arterial wall) makes it difficult for blood to go through blood vessels. Rishi is a pediatric infectious disease physician and works at Khan Academy.