Cardiovascular anatomy quiz- A&P

What is the function of the atria in the heart?

• Thicker walled lower chamber

• Thinner walled upper chamber

• Cardiac muscle that divides heart into halves

• Pumps blood to the lungs.

The Aortic Semilunar valve is located between the _______ and the aorta.

• Right ventricle

• Left ventricle

• Right atrium

• Left atrium

Which of the following is true about the semilunar valves?

• They are located between the atria and ventricles

• They are located between ventricles and pulmonary arteries/aorta.

• They are responsible for the heartbeat

• They oxygenate the blood.

What is the primary function of the semilunar valves?

• To oxygenate the blood

• To prevent backflow into the ventricles

• To regulate the heart rate

• To pump blood into the atria.

This structure is a sac-like and surrounds the heart producing a fluid to reduce friction.

Which type of blood vessel has thick walls and carries oxygenated blood away from the heart?

• A) Arteries

• B) Arterioles

• C) Capillaries

Arterioles are smaller vessels that carry oxygenated blood toward the ______.

• Veins

• Capillaries

• Heart

The primary function of capillaries is to allow for ______.

• A) Blood circulation

• B) Gas and nutrient exchange

• C) Oxygen transport

Veins are responsible for carrying blood back to the heart. What is the nature of this blood?

• Oxygenated

• Deoxygenated

• Both A and B

• Neither A nor B

In systemic circulation, takes blood to:

• the heart

• the body

• the lungs

• the head