1. Blood Vessel Functions Pg 102
Blood Vessels

2. What did you write? Vein Differences Artery Differences Capillary

3. Blood Color: https://www.youtube.com/watch?v=18--LFIs-FM
Blood Flow through the body

4. Labeling Tunica Intima (A.) A. Tunica Intima-- -Tunica Intima (A.)
B. Tunica Media--
-Tunica media (B.)
C. Tunica Externa--
-Tunica Externa (C.)

5. Tunica Intima:
Loose Connective Tissue
decrease friction so blood can flow freely

6. Tunica Media:
Smooth Muscle
Constricts and dilates to move the blood

7. Tunica Externa:
Collagen
Supports(so it doesn’t collapse)
Protects
Connects

8. Arteries Blood flow through the arteries, veins, capillaries

9. Veins
How the veins work

10. Capillaries
Tunica Intima only: several pores to allow waste to enter and oxygen to leave
capillary video 2
capillary video
blood flow

11. Add to your T-Chart (pg 102)
Vein
Differences
Artery
Differences
Capillary
Differences
Artery & Vein
similarities
Vein & Capillary
similarities 2