• Layers of the blood vessels diagram
• Layers of a blood vessel - diagram
• Layers of arteries and veins diagram

Pressure in Blood Vessels

• drop in blood pressure as progress through circulatory system

Arteries

• Identification of the Arteries

Veins

• Valves in veins picture
• Valves in a vein with layers labeled

Capillaries

• capillary bed picture
• Exchange of fluid between capillaries and interstitial fluid