TRANSPULMONARY PRESSURE

In this video, we talk about the static properties of the lung. We talk about inflationary and deflationary limbs, transpulmonary pressure, and a little bit about surfactants
DISCLAIMER: These videos are NOT meant to replace your lecture attendance, taking lecture notes, and reading the assigned readings in your textbook. These videos are only intended to aid you in understanding the material. Since our understanding of physiology is constantly updating, please use your professor's lectures and/or your textbook as your primary sources of information since these are more likely to be up to date. Thank you!
Resources Used: Note that this video is heavily based on a class lecture given by Dr. Walter Boron at CWRU. The lecture was on material covered in Chapter 27: Breathing Mechanics in Boron and Boulpaep Medical Physiology 3rd edition.
#lungs #physiology #biology #mcat #medicine #medschool

[@LUCIFER_HELLSTAR]

Man you made it like a piece of cake, thank you so much

[@hunainasaiyed5096]

This is the most accurate and easy explanation for this topic ….. finally understand the concept

[@dactorammarqeer]

thank you continue you are smart

[@johnkodhek]

Superb! Explained so so clearly! Can't believe I've finally understood this. Thank you so much! 👏🏾👏🏾👏🏾🙌🏾🙌🏾

[@10minutephysiology50]

Thank you for your kind words! I'm glad this video helped!

[@erwinrumel7152]

Helpful

[@eman5669]

Thank you for great explantion ,just if you can explain the concept of transpulmonary pressure and cardiac trans mural pressure ,how are they connected thanks

[@balochacademy9376]

Thx

[@wiltonpt1]

You said it the opposite way...the pressure at the bottom is greater than the top?? I think you mean the other way around.

[@10minutephysiology50]

Hi! Thanks for the comment! However, the intrapleural pressure at the bottom is greater than the intrapleural pressure at the top when a person is standing. This is because when a person is standing, gravity pulls the lungs down from the apex toward the diaphragm. This creates a greater partial vacuum at the apex than at the diaphragm. This is why the intrapleural pressure at the apex is more negative than the intrapleural pressure at the bottom when a person is standing. And since the intrapleural pressure at the apex is more negative than the intrapleural pressure at the bottom, this means that the intrapleural pressure is less than that of the base.

[@tripleraze321]

A less negative number is larger/greater than a more negative number. Just because the number itself is smaller should not distract us from the fact that there is a negative sign in front of both values. Therefore -2.5 for example is a much greater pressure than -10