CH11.1 A&P of the Heart CYU

What is the main function of the cardiovascular system?

• Generate nerve impulses

• Maintain bone structure

• Transport substances to and from cells

• Produce hormones

Which structure serves as the muscular pump in the cardiovascular system?

• Brain

• Lungs

• Liver

• Heart

Vasodilation causes blood vessels to:

• Narrow

• Contract

• Widen

• Harden

Which chamber of the heart receives deoxygenated blood from the body?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

Which valve is located between the right atrium and right ventricle?

• Mitral valve

• Aortic valve

• Tricuspid valve

• Pulmonary valve

What is the function of the chordae tendineae?

• Close the semilunar valves

• Increase blood pressure

• Prevent valve inversion

• Regulate heartbeat

What are the heart’s lower chambers called?

• Atria

• Ventricles

• Valves

• Septa

The epicardium is:

• The heart's electrical center

• The outer layer of the heart

• The inner lining of the heart chambers

• The muscle layer that pumps blood

Which valve prevents backflow from the aorta into the left ventricle?

• Pulmonary

• Tricuspid

• Mitral

• Aortic

What is the correct sequence of blood flow through the heart starting with the right atrium?

• Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle → Body

• Left atrium → Right atrium → Lungs → Left ventricle → Right ventricle

• Right atrium → Left atrium → Lungs → Right ventricle → Left ventricle

• Right atrium → Left ventricle → Lungs → Right ventricle → Body