Understanding Blood Vessels and Circulation

What are the three main types of blood vessels?

• Arteries, Veins, Aorta

• Arterioles, Venules, Capillaries

• Arteries, Veins, Capillaries

• Aorta, Vena Cava, Capillaries

Which type of blood vessel carries oxygen-rich blood away from the heart?

• Arteries

• Veins

• Venules

• Capillaries

How does the blood in veins of the systemic circuit compare to that in arteries?

• Equal oxygen levels

• More oxygen-rich in veins

• More oxygen-poor in veins

• More nutrients in veins

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

• Carry blood away from the heart

• Regulate blood pressure

• Carry blood into the heart

• Direct contact with tissues to supply oxygen

What is the function of the tunica media in blood vessels?

• Provide structural support

• Minimize friction

• Supply nutrients

• Regulate vessel diameter

What is the main function of the tunica externa in blood vessels?

• Structural reinforcement

• Provide nourishment

• Regulate blood flow

• Minimize blood loss

What is the primary role of the vasa vasorum in larger blood vessels?

• Supply outer layers with nutrients

• Ensure one-way blood flow

• Carry oxygen-rich blood

• Regulate blood pressure

Which arteries are known for being the largest and handling high pressure?

• Elastic arteries

• Muscular arteries

• Capillaries

• Arterioles

Which arteries deliver blood to specific organs?

• Capillaries

• Arterioles

• Muscular arteries

• Elastic arteries

Which type of capillary is most common and found in muscles?

• Sinusoid capillaries

• Elastic capillaries

• Fenestrated capillaries

• Continuous capillaries