2223 1A Respiratory System

Respiratory volume from a normal quiet breathing moves that is approximately 500mL.

• Tidal volume

• Vital capacity

• Total lung capacity

• Residual volume

Which of the following does not belong in the lower respiratory tract?

• windpipe

• bronchiole

• voicebox

• alveoli

The right lung has ____ lobes.

Which cartilage is also known as the Adam's apple?

• thyroid cartilage

• cricoid cartilage

• cuneiform cartilage

• hyaline cartilage

Other name of the throat. (1 word)

Also known as the windpipe.

• larynx

• pharynx

• trachea

• glottis

Exchange of gasses between the alveoli and the pulmonary blood.

• breathing

• external respiration

• pulmonary ventilation

• internal respiration

For a healthy person, the most important stimulus for breathing is

• the need to take in oxygen

• the need to get rid of carbon dioxide

Hyperventilation causes decrease of CO2 in our system. If not managed, this will result to

• respiratory alkalosis

• respiratory acidosis

Answer explanation

Decrease of CO2 will also decrease the H+ in the blood (H+ is from dissociation of carbonic acid, a product of CO2 and H2O).

Decrease in H+ also decreases the acidity level (pH increases)

Which of the following is lined with a single layer of squamous epithelial cells?

• capillaries

• alveoli