Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic threelayer structure of your blood vessels. We're also going over how those structures differ slightly in different types of vessels. We will also follow the flow of blood from your heart to the capillaries in your right thumb, and all the way back to your heart again.

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Chapters
Introduction: The Circulatory System 00:00
Blood Vessel Structure: Tunica Intima, Tunica Media, Tunica Externa 2:10
Types of Blood Vessels 3:44
Capillaries Structure & Function 5:25
How Blood Flows From Capillaries to the Heart 7:01
Review 8:39
Credits 9:03

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