Cardiovascular System Quiz

The vessels that carry blood away from the heart

• arteries
• veins
• capillaries
• apex

The smallest blood vessels that allow for O₂ and CO₂ exchange to take place.

• arteries
• veins
• capillaries
• aorta

The blood vessels that carry blood to the heart; have valves to prevent the backflow of blood. 

• arteries 
• veins
• capillaries
• base

Atria

• lower chambers of the heart
• upper chambers of the heart
• right chambers of the heart
• left chambers of the heart

Which is the rhythmic pressure against the walls of an artery caused by the contraction of the heart?

• plasma
• pulse
• erythrocyte
• leukocyte

There are four different components of blood. Which is the liquid component that makes up about 55% of blood?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What organ creates the pressure needed for your blood to pump?

• Heart

• Pulmonary Artery

• Veins

• Capillaries

What part of the cardiovascular system prevents backflow of blood?

• heart

• pulmonary artery

• valves

• veins

Veins primarily carry ____ blood ____ the heart

• oxygenated; away from

• oxygenated; to

• deoxygenated blood; away from

• deoxygenated blood; to

Heart rate increases during exercise because our muscles need more oxygen to produce energy.

• True

• False