Circulatory

Return deoxygenated blood to the heart

Transport oxygen-rich blood from the heart

Exchange substances between blood and body cells (correct)

Regulate blood pressure to the arterial system

Veins have thicker walls and smaller lumens than arteries

Arteries have large lumens and contain valves to facilitate blood flow

Veins are responsible for carrying blood away from the heart at high pressure

Arteries have thick walls with small lumens compared to the large lumen of veins (correct)

To increase blood pressure as it returns to the heart

To facilitate the exchange of substances in blood

To assist in the branching of blood flow to different body parts

To prevent the backflow of blood during return to the heart (correct)

<p>Low compared to arteries and veins</p> Signup and view all the answers

<p>Arterioles are smaller branches of arteries leading to capillaries</p> Signup and view all the answers