Respiratory System and Inhalation Process

The nasal cavity is responsible for ______ the air before it reaches the lungs.

• cooling

• warming

• filtering

• drying

Which structure is responsible for funneling inhaled air to the lungs?

• Pharynx

• Larynx

• Trachea

• Bronchi

The trachea is lined with cells that have cilia and secrete ______.

• mucus

• saliva

• enzymes

• hormones

What is the role of the alveoli in the respiratory system?

• To filter air

• To exchange gases

• To produce mucus

• To support the trachea.

The primary bronchi divide into smaller passages called ______.

• alveoli

• bronchioles

• trachea

• pharynx

The alveoli are in direct contact with ______ of the circulatory system.

• arteries

• veins

• capillaries

• nerves

The trachea extends from the pharynx into the ______.

• stomach

• chest cavity

• brain

• liver

The surface area of alveoli in the lungs is approximately equal to the area of:

• A football field

• A tennis court

• Half a tennis court

• A basketball court

What is the role of the capillaries in the alveoli?

• To transport air

• To exchange gases with blood

• To produce oxygen

• To filter impurities

The anatomical arrangement of capillaries and alveoli emphasizes the relationship between the ______ and circulatory systems.

• Digestive

• Respiratory

• Nervous

• Muscular