Cardiovascular System Facts and Definitions

What is the function of the valves in veins? Fill in the blank: The veins have valves that allow blood to move ONLY toward the ______.

• heart

• lungs

• liver

• brain

Which vein carries blood from the upper body to the heart?

• Inferior vena cava

• Superior vena cava

• Pulmonary vein

• Jugular vein

Which vein carries blood from the lower body to the heart?

• Superior vena cava

• Inferior vena cava

• Pulmonary vein

• Jugular vein

What is the pulse felt at the wrist or throat? Fill in the blank: The pulse felt at wrist or throat is the surge of blood caused by the ______ contraction. This is why pulse rate is normally equal to heart rate.

• heart

• lung

• liver

• kidney

What does blood pressure measure? Fill in the blank: Blood pressure is a measurement of the force exerted by blood against the wall of the ______ vessel.

• blood

• nerve

• bone

• muscle

During ventricular systole, blood is under a lot of pressure from the ventricular contraction, giving the highest blood pressure reading. What is this pressure called?

• Diastolic pressure

• Systolic pressure

• Pulse pressure

• Mean arterial pressure

The purpose of the valves is to keep the blood flowing in the right direction

• True

• False

The valve between the right atrium and right ventricle is the __.

Which valves prevent back flow into the ventricle during the filling period:

• atrioventricular valves

• semilunar valves

• venous valves

• all of the above