Respiration Flashcards
What are the 2 components of respiration?
pulmonary ventilation and pulmonary respiration
What is pulmonary ventilation?
“macroscopic” breathing between inhalation and exhalation
What is pulmonary respiration?
“microscopic” breathing in smaller categories
What are the 3 types of pulmonary respiration?
- external respiration
- internal respiration
- cellular respiration
What is external respiration?
the movement of O2 and CO2 between alveoli and pulmonary capillaries
What is internal respiration
the movement of O2 and CO2 between capillaries and tissues
what is cellular respiration?
cells use O2 to create ATP (energy)
How does air move through the body during pulmonary ventilation?
air moves from higher pressure to lower pressure
How does air move during inhalation?
atmospheric pressure is higher than lungs –> air goes into lungs
How does air move during exhalation?
lung pressure is higher than atmosphere –> air goes out of lungs
Describe Boyle’s law
pressure and volume have inverse relationships
What happens during inhalation?
Volume increases
Intrapleural and alveolar pressure decreases
What happens during exhalation?
Volume decreases
Intrapleural and alveolar pressure increases
What is intrapleural pressure?
pressure between the two pleural layers
What is alveolar pressure?
pressure inside the lungs
