Circulatory & Respiratory Systems

How many chambers are in the heart?

• One

• Two

• Three

• Four

When blood leaves the right atrium, it enters the ______.

• Left atrium

• Right ventricle

• Left ventricle

• None of the above

The only type of artery in the body which carries deoxygenated blood is ______.

• A superior vena cava

• An inferior vena cava

• A pulmonary artery

• An aorta

The only type of vein in the body which carries oxygenated blood is ______.

• A pulmonary vein

• A pulmonary trunk

• A superior vena cava

• An inferior vena cava

The pressure exerted by the left ventricle must push blood where?

• To the body

• To the lungs and back to the left atrium

• To the lungs and back to the right atrium

• To the aorta only

Heart attacks can result from a blockage of

• The trachea

• The bronchus

• A coronary artery

• The superior vena cava

Name the chamber of the heart that pumps blood to the lungs.

• Left ventricle

• Right ventricle

• Left atrium

• Right atrium

Expiration is:

• Usually active

• Usually passive

• Always active

• Always passive

Which structure helps to prevent food from entering the trachea during swallowing?

• Epiglottis
• Pharynx
• Larynx
• Esophagus

The trachea divides into two branches called the:

• bronchi
• trachea
• lungs
• esophagus