Final answer:
Ventilation refers to the movement of air into and out of the lungs. It is measured as the frequency of breathing multiplied by the tidal volume. The processes of inspiration and expiration are part of ventilation. Ventilation relies on both contracting and relaxing skeletal muscles.
Step-by-step explanation:
Ventilation refers to the movement of air into and out of the lungs. This statement is true. Ventilation is the process of breathing, which involves the exchange of air between the atmosphere and the lungs through the respiratory system.
Ventilation is measured as the frequency of breathing multiplied by the tidal volume. This statement is true. Ventilation rate is calculated by multiplying the number of breaths per minute (frequency of breathing) by the volume of air inhaled or exhaled with each breath (tidal volume).
Ventilation includes the processes of inspiration and expiration. This statement is true. Inspiration is the process of inhaling air into the lungs, while expiration is the process of exhaling air out of the lungs.
Ventilation relies exclusively on contracting skeletal muscles. This statement is false. In addition to the contraction of skeletal muscles, ventilation also involves the relaxation of these muscles and the actions of the diaphragm and intercostal muscles.
Learn more about Mechanics of Breathing