PHYS 261 (Human Physiology)
Chapter 17 Lecture Notes (Mechanics
of Breathing) passed
Pulmonary Ventilation - correct answer ✔✔ The movement of air into and out of the lungs.
Total Pulmonary Ventilation - correct answer ✔✔ Tidal volume x Ventilation Rate
Alveoli - correct answer ✔✔ Tiny air sacs that function as gas exchange site of the respiratory
system.
Surfactant - correct answer ✔✔ Decreases surface tension in the fluid lining the alveoli which
prevents smaller alveoli from collapsing.
Surfactant - correct answer ✔✔ A mixture containing proteins and phospholipids that is more
concentrated in smaller alveoli.
Boyle's Law - correct answer ✔✔ States that as the volume available to gas increases, the gas
pressure decreases.
Boyle's Law - correct answer ✔✔ States that gas volume is inversely proportional to pressure.
Alveolar Ventilation Rate - correct answer ✔✔ A better indication of how much fresh air reaches
the alveoli.
Alveolar Ventilation Rate - correct answer ✔✔ Ventilation rate x (Tidal volume - Dead space
volume)
Chapter 17 Lecture Notes (Mechanics
of Breathing) passed
Pulmonary Ventilation - correct answer ✔✔ The movement of air into and out of the lungs.
Total Pulmonary Ventilation - correct answer ✔✔ Tidal volume x Ventilation Rate
Alveoli - correct answer ✔✔ Tiny air sacs that function as gas exchange site of the respiratory
system.
Surfactant - correct answer ✔✔ Decreases surface tension in the fluid lining the alveoli which
prevents smaller alveoli from collapsing.
Surfactant - correct answer ✔✔ A mixture containing proteins and phospholipids that is more
concentrated in smaller alveoli.
Boyle's Law - correct answer ✔✔ States that as the volume available to gas increases, the gas
pressure decreases.
Boyle's Law - correct answer ✔✔ States that gas volume is inversely proportional to pressure.
Alveolar Ventilation Rate - correct answer ✔✔ A better indication of how much fresh air reaches
the alveoli.
Alveolar Ventilation Rate - correct answer ✔✔ Ventilation rate x (Tidal volume - Dead space
volume)
