Blood Vessels

Arteries have thick muscular walls?

• true

• false

Capillaries have what two features?

• very thin walls

• large surface area

• small surface area

• very thick walls

Capillaries allow the excahnge of what THREE materials

• oxygen

• carbon dioxide

• Nitrogen

• glucose (sugar)

Veins have thick muscular walls?

• True

• False

Arteries carry blood back to the heart?

• True

• False

Veins carry blood back to the heart?

• True

• False

Arteries have valves?

• True

• False

Veins have valves?

• True

• False

Arteries flow at high pressure?

• True

• False

Veins flow at high pressure

• True

• False