Cardiovascular Exam

What is the main organ of the circulatory system?

• Lungs

• Heart

• Capillaries

• Veins

What is the function of the heart in the circulatory system?

• To pump oxygenated blood to the body's tissues

• To carry deoxygenated blood from the body's tissues to the lungs

• To exchange nutrients, oxygen, and waste products with tissues

• To return blood from the body to the lungs

Which type of blood vessels carry blood away from the heart?

• Veins

• Capillaries

• Arteries

• Venules

True or False: There are six valves in the heart.

• True

• False

Veins carry blood ____________________ to heart while arteries carry blood _____________________________ the heart.

• toward, away from

• away from, toward

Put the flow of blood through your heart in order. Start with deoxygenated blood coming to the heart.

• lungs

• left atrium

• left ventricle

• Right atrium

• Right ventricle

_________________ are thinner-walled vessels containing valves, while ______________________ are thicker-walled vessels.

• Arteries, veins

• Veins, arteries

• Capillaries, veins

• Arteries, capillaries

Blood vessels that carry blood away from the heart called ___

• Blood

• heart

• arteries

• capillaries

Veins have special ________________ to stop blood from flowing backward.

• gravity
• valves
• arteries
• ventricles

State the general relationship between exercise and heart rate in humans.

• If a person exercises, then their heart rate will not change

• If a person exercises, then their heart rate will increase

• If a person exercises, then their heart rate will decrease

• Person exercising and heart rate are not related