Hypoventilation - Chapter 16 - Daly

Question 1

Define minute ventilation (aka total ventilation)

Answer 1

The total volume of gas exhaled per minute. It is equal to the tidal volume times the respiratory frequency.

Question 2

Define alveolar ventilation

Answer 2

The volume of fresh inspired air (non-dead space gas) available for gas exchange that enters the alveoli per minute, equivalent to the total amount of air breathed per minute minus the air contained in the dead space per minute.

Question 3

The generation of the ventilatory pattern involves the integration of neural signals from three main groups of neurons located in the respiratory controls center in the medulla and pons:

Answer 3

(1) Medullary respiratory center
(2) Apneustic center
(3) Pneumotaxic center