Veins vs Arteries Flashcards
What is the order of blood flow from arteries to veins?
Arteries
Arterioles
Capillaries
Venules
Veins
What is the function of arteries?
Carry oxygenated blood away from the heart
What is the structure of arteries?
Have thick, elastic walls to withstand high pressure from the heart’s pumping action.
What is the function of arterioles?
Small branches of arteries that lead to capillaries.
What is the structure of arterioles?
Have muscular walls that help control blood flow by constricting or dilating.
What is the function of capillaries?
Where gas, nutrients, and waste are exchanged between blood and tissues.
What is the structure of capillaries?
Tiny, thin-walled vessels that connect arterioles to venules.
What is the function of venules?
Collect deoxygenated blood from capillaries.
What is the structure of venules?
Small vessels that begin the return journey of blood toward the veins.
What is the function of veins?
Carry deoxygenated blood back to the heart
What is the structure of veins?
Have thinner walls and valves to prevent backflow of blood.
How are arteries and veins named?
Arteries and veins are named based on the direction of blood flow, not oxygen content.
-Arteries carry blood away from the heart.
-Veins carry blood toward the heart.
