Air flow and blood flow are governed by the same principles: flow occurs when pressure gradients can overcome resistance. And like in the cardiovascular system, resistance to airflow is almost entirely altered by changes in diameter of the conduits (in the case of the respiratory system, these important conduits are the bronchioles). What would happen to airflow into an alveolus when the bronchiole serving that alveolus constricts? Airflow would increase into the alveolus Airflow would decrease into the alveolus
Added by Ashley T.
Close
Step 1
The text states that "flow occurs when pressure gradients can overcome resistance." It also highlights that "resistance to airflow is almost entirely altered by changes in diameter of the conduits." Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 61 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Adi S.
Airflow is a function of two factors: 1) the pressure gradient and 2) the resistance established between atmospheric pressure and intrapulmonary pressure. The formula for airflow is a mathematical expression that demonstrates that flow is directly related to the pressure gradient and inversely related to resistance. If the pressure gradient between the atmosphere and lungs increases, airflow into the lungs increases. Conversely, if the pressure gradient decreases, airflow into the lungs lessens (assuming resistance remains the same).
Madhur L.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD