Respiratory Physiology Review

Question 1

The amount of air expired after maximal expiratory effort.

Answer 1

Forced vital capacity

Question 2

Helps prevents alveolar collapse

Answer 2

Surfactant

Question 3

Injection of a drug that stimulates the carotid bodies would be expected to cause:

Answer 3

A decrease in PCO2 of arterial blood

Question 4

Which of the following is responsible for the movement of O2 from the alveoli into the blood in the pulmonary capillaries?

Answer 4

Passive diffusion

Question 5

Has the greatest effect on the ability of blood to transport oxygen?

Answer 5

Amount of hemoglobin in the blood

Question 6

send out regular bursts of impulses to inspiratory muscles during quiet respiration.

Answer 6

The main respiratory neurons

Question 7

transection of the brainstem at the caudal end of the medulla.

Answer 7

That is where spontaneous respirations cease.

Question 8

Intravenous lactic acid increases ventilation. The receptors responsible for this effect are located in the

Answer 8

Carotid bodies

Question 9

Most of the CO2 transported in the blood is

Answer 9

HCO3-

Question 10

is increased following bronchial smooth muscle contraction.

Answer 10

Airway resistance

Question 11

the amount of air that normally moves into (or out of) the lung with each respiration.

Answer 11

Tidal Volume