I would really like to express my admiration to the neatness of your work . This explanation is exactly what I was looking for long time ago !! but unfortunately DID NOT click into my head like the way you did . keep up the good work and thank you very much again .
You forgot to say how surfactant help alveoli from collapsing. It is in my physics book. They basically talk about how there are many size of alveoli. Pressure is indirectly related to radius of the bubble(alveoli) and directly related with surface tension of the bubble, which basically means that bigger bubble has low pressure than smaller bubble and also high surface tension means high pressure . Basically as small alveoli has greater pressure, air from it will move to lower pressure big bubbles, collapsing smaller bubble due to difference in pressure(diffusion occurs). Surfactant reduces surfaces tension. Thus less difference in pressure.
Video's like this take concepts that are not actually complicated, but a little difficult to comprehend from just reading for some people and make them seem much more simple! Thank you!
Wow!! I've never understood surface tension in a more simplified manner than what you've just made me understand..... Thank You so much for your efforts and for giving your precious time in these lectures.... You are an Angel on earth.... :)
I've had difficulties understanding this subject and everything related to respiratory system throughout my school years and into college.. Its only now that I understand it clearly . thanks alot 2020'8'22
Wow, just awesome! Thanks for really breaking it down and making it easy to understand. I am in dental school, and you explained it 100x better than my PhD professor!
I hope you're a lecturer at a top tier University, your delivery is just as good if not better than most of my lecturers are the University of Edinburgh
The systolic pressure in a major artery is measured at 115 mmHg. What is the net force on a 1 cm2 section of the arterial wall if the (absolute) pressure in the tissue outside the arterial wall is 109 kPa? (Patm = 101.3 kPa)
it is true that they help in expantion but how they help in preventing constricting because if we remove surface tention from water baloon its wall will constrict and baloon will break.
In your previous videos, I thought you said when we inhale the alveoli decrease its size. Now you're saying that alveoli expand when we inhale? I'm confused...I love your videos!!
A patient is presented with pneumonia type symptoms except mucus is watery... It's water, clear and not thick. We have exhausted all options of antibiotics. Patient currently given corticosteroids as a last ditch and is on a mechanical ventilator with oxygen levels of 70%. She has reactive type 2 pneumocytes. Ps: I am not a nurse... I am a concerned daughter looking for answers and hope as our medical system is primitive and they don't know what reactive type 2 is. Can anyone help please. Are there any other ideas we can try? Would proning help relieve any pressure on her lungs Thanks in advance. From New Zealand.
