Cardiovascular system

Blood vessels that allow exchange of nutrients with body tissues

• arteries

• veins

• capillaries

• arterioles

Vessels that carry blood away from the heart

• arteries

• veins

• capillaries

• venules

What part in the heart prevents back flow into the atria?

• AV valves

• Sinoatrial node

• Pericardium

• Semilunar valves

What is the function of the atrioventricular node?

• Ensures atria contracts
• Ensures ventricles receive signal to contract
• Release blood to the ventricles
• Ensures that the left side of the heart is larger than the right

The valves located between the atria and ventricles are known as the _______ valves.

• aortic
• atrioventricular
• semilunar
• pulmonary

What is the correct description for the size of the heart?

• About the size of a baseball

• About the size of a basketball

• About the size of a fist ( 1 pound)

• We can not accurately give a description to the heart

What is the term associated with the sound of the heart?

• Lud-Dud

• Loop-Dup

• Love-Dove

• Lub-Dub

What is happening in the heart when we hear the "Lub" sound

• The AV valves are closing in the heart

• The Semilunar valves are closing in the heart at the end of contraction

• The SA node is firing rapidly

This is the force that blood exerts against the inner walls of the blood vessels and the force that keeps blood circulating.

• Heart Rate

• Blood Pressure

• Venous Return

• plasma tension

A normal blood pressure is 120/80. What is the top number indicating?

• Heart rate

• Pulse

• Systolic pressure

• Diastolic pressure