Understanding Arteries and Veins

The video from MooMooMath and Science explains the roles of arteries and veins in the circulatory system. Arteries carry oxygen-rich blood away from the heart, except for the pulmonary artery, which carries oxygen-poor blood to the lungs. Arteries have three layers and operate under high pressure without valves. Veins return oxygen-poor blood to the heart, except for the pulmonary vein, which carries oxygen-rich blood from the lungs. Veins have valves to prevent backflow and are less flexible than arteries. Capillaries connect arteries and veins. The video concludes with a call to subscribe and share.

What is the primary function of arteries in the circulatory system?

• To carry blood towards the heart

• To carry blood away from the heart

• To exchange gases in the lungs

• To filter blood in the kidneys

Which artery is an exception in carrying oxygen-rich blood?

• Femoral artery

• Carotid artery

• Pulmonary artery

• Coronary artery

What are the three main layers of an artery?

• Connective tissue, smooth muscle, endothelial cells

• Endothelial cells, epithelial tissue, smooth muscle

• Connective tissue, epithelial tissue, endothelial cells

• Epithelial tissue, smooth muscle, connective tissue

How does blood flow through arteries?

• Under high pressure without valves

• Under low pressure with valves

• Under low pressure without valves

• Under high pressure with valves

What is the main role of veins in the circulatory system?

• To filter blood in the kidneys

• To carry blood away from the heart

• To carry blood towards the heart

• To exchange gases in the lungs

Which vein is an exception in carrying oxygen-poor blood?

• Pulmonary vein

• Saphenous vein

• Jugular vein

• Hepatic vein

What feature do veins have that helps prevent backflow of blood?

• Higher pressure

• Valves

• Thicker walls

• More smooth muscle