A & P Chapter 16

Blood vessels that carry blood away from the heart

• Arteries

• Veins

• Capillaries

• Conducting

Blood vessels that return blood to the heart; called capacitance vessels because of their capacity for storing blood; great ability to stretch & constrict which helps the body to maintain Blood Pressure

• Arteries

• Veins

• Capillaries

• Conducting

Microscopic vessels that link arterioles to venules; site where nutrients, wastes, and hormones are exchanged between blood and tissue; Exchange vessels

• Arteries

• Veins

• Capillaries

• Conducting

Note

BLOOD VESSEL LAYERS
Tunica Intima
Tunica media-thickest in arteries
Tunica externa---thickest in veins

• Next

• Not yet

The body's largest arteries; also called elastic arteries; Aorta

• Conducting

• Distributing

• Arterioles

• Venules

Carry blood to specific organs and tissues; also called muscular arteries

• Conducting

• Distributing

• Arterioles

• Venules

The smallest arteries; also called resistance vessels

• Conducting

• Distributing

• Arterioles

• Venules

The smallest veins; serve to collect blood from the capillaries

• Diffusion

• Large veins - Vena Cava

• Medium sized veins

• Venules

formed by convergence of venules

• Diffusion

• Large veins - Vena Cava

• Medium sized veins

• Venules

The body's chief vein, which serves to return blood to the heart

• Diffusion

• Large veins - Vena Cava

• Medium sized veins

• Venules