Respiratory Circulatory Systems

The structure that cleans and warms the air as it enters the body is

• heart

• nose

• ears

• lungs

What is the process where O₂ moves to an area where there is more oxygen to an area where there is less oxygen?

• fiction

• diffusion

• homeostasis

• tension

Which blood vessel is used to find your pulse?

• Artery

• Vein

• Capillary

What is a thin-walled vessel that returns blood back to the heart?

• Artery

• Vein

• Capillary

What vessel has blood that is rich in oxygen and carries blood away from the heart?

• Artery

• Vein

• Capillary

What are the small vessels that connect arteries and veins?

• Arterioles

• Venules

• Capillaries

Where is the site for oxygen / carbon dioxide exchange?

• Artery

• Capillary

• Vein

What has thin walls with valves and carries oxygen poor blood?

• Veins

• Capillaries

• Arteries

Arrange the organs of the respiratory system in the correct order.

• Nose, bronchi, trachea,

• Bronchi, nose, trachea

• Nose, trachea, bronchi

When swallowing, the ________________________ covers the trachea to prevent choking.

• Larynx

• epiglottis

• bronchi

• tongue