Pressure-Volume Loops | Compliance | Respiratory Physiology

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Pressure-Volume Loops (PV loops) of the lung…Pulmonary compliance (the ratio of the change in volume to change in pressure)…Respiratory Physiology…Pulmonology.
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Опубликовано:

3 авг 2024

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Комментарии : 140

@MedicosisPerfectionalis 2 года назад

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@autotelictric 4 года назад

The explanation is thorough, with the perfect speed and enthusiasm, which makes this video a success. I could feel your passion as you were reviewing the concepts that were previously explained and it's the kind of nonchalance that makes your tone agreeable and the viewer more comfortable. Finally, thank you for making the video, it's clear that it took you a lot of time and effort to produce, I hope our sincere comments will make the latter worth it.

@MedicosisPerfectionalis 4 года назад

Wow 🤩 You’re such an awesome person! Thank you so much 😊

@stillfindingmyself6869 Год назад

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@zainabelamin9892 Год назад

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@MedicosisPerfectionalis Год назад

Wow, thank you!

@ayaelahmady3839 Год назад

Thanks for being our SOS RU-vid channel…you really make my study life much easier

@MedicosisPerfectionalis Год назад

It's my pleasure 😇

@katyabergstrom5742 5 лет назад

Brilliant as always. Concise and beautifully explained. Cannot thank you enough. Excited for the rest of the videos in this Pulm series.

@MedicosisPerfectionalis 5 лет назад

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@chaltimepass 2 года назад

What a perfect video. Perfect speed. Perfectly explained concepts. Needs maximum videos from this person.

@MedicosisPerfectionalis 2 года назад

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@vishakham747 3 года назад

I am binge watching pulmo videos and ahhh what a blessing this channel is !

@MedicosisPerfectionalis 3 года назад

Thank you so much 😊

@patch0789 4 года назад

This is SO helpful and so clear! Thank you 🙏

@yusra3214 3 года назад

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@MedicosisPerfectionalis 3 года назад

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@alejandrocanas9594 3 года назад

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@levihoffman4161 3 года назад

I literally get overwhelmed and frustrated with medical school every new unit with the flood of information. And then I watch your videos and enjoy it again. You make learning these concepts a lot of fun.

@MedicosisPerfectionalis 3 года назад

Thank you so much 😊

@alejandrocanas9594 3 года назад

looks like we're both suffering through pulmonary block rn haha

@gentleboomsharry6570 Год назад

AS a medical device sales this is an amazing video very informative,educational and easy to understand

@MedicosisPerfectionalis Год назад

Thank you 😊

@mahsamazdak2755 2 года назад

I'm just gonna cry, YOU ARE AMAZING!

@MedicosisPerfectionalis 2 года назад

Thank you 😊

@Nora-dx9cy Год назад

I LOVE THIS MAN

@MedicosisPerfectionalis Год назад

Thank you 😊

@nicorogervonlohengramm 3 месяца назад

I finally understood this topic 😃. Thank you

@MedicosisPerfectionalis 3 месяца назад

My pleasure!

@OsamaElsawwah 3 года назад

You are a GENIUS!

@alazar8540 3 года назад

I love your approach. You are knowledgeable . Simply, sweet!!!!

@MedicosisPerfectionalis 3 года назад

Thank you so much 😊

@hindabdo5032 4 года назад

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@alosh5934 3 года назад

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@Yugmeruliya 7 месяцев назад

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@MedicosisPerfectionalis 7 месяцев назад

Thank you so much!

@osamamkaeeil2295 5 лет назад

Thank you for this informative video....can you explain pressure and volume curves of the heart please and thank you

@raspberry765 4 года назад

Thank you so much for amazing content, as always! I had a question about the work of breathing I was hoping you could please answer... in COPD, the resistance is higher so to decrease the work of breathing, I read that they breathe slower and deeper to decrease resistance. Why is that? What is the physics relationship between resistance and velocity of air in lungs (fast breathing versus slow breathing). Thank you so much in advance!

@TheSnorlaxative 5 лет назад

Very nice video colleague!

@MedicosisPerfectionalis 5 лет назад

Thanks 🙏

@ivanoropeza9944 2 года назад

Life saver my man! Thank you

@MedicosisPerfectionalis 2 года назад

My pleasure 😇

@penapravoce494 4 года назад

Excellent video, but it seems that "work of expiration" is not just limited to those with pulmonary problems - indeed, it is the normal function for trained singers! Would love to see you do a video on the pressure-relaxation curve - thanks!

@epstein1881 4 года назад

You are a brand sir!👏

@MedicosisPerfectionalis 4 года назад

Thank you so much 😊

@rishabhraj8424 4 года назад

Great video with excellent content...

@MedicosisPerfectionalis 4 года назад

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@sapthakathilakarathne242 2 года назад

amazing lecture, thank you, sir, perfectly explained

@MedicosisPerfectionalis 2 года назад

Thank you 🙏

@dikshasingh4983 2 месяца назад

Thanku sir i like your explanation and i do understand ❤

@malberfawzy1806 3 года назад

It helps me alot in my exams , thank u very much for this great effort

@MedicosisPerfectionalis 3 года назад

My pleasure 😇

@Ala22223 4 года назад

you are genius thank you !!!!!

@MedicosisPerfectionalis 4 года назад

My pleasure 😇

@Drstar-rg9wp 3 года назад

Thank you so much ♥️🙏

@MedicosisPerfectionalis 3 года назад

My pleasure 😇

@Nasa_a_universe Год назад

Thanks 👍

@sky_phakathwayo Год назад

that favorite channel❤️❤️❤️

@MedicosisPerfectionalis Год назад

Thank you 🙏

@sathsaranigamage4924 Год назад

Can you please explain this, sir? In the pressure- volume graph when we consider the gradient as compliance, isn't it higher in 'lungs only' than in 'lungs+ chest wall' ? So, why won't the compliance is higher in ' lungs only' than that of the combined system?

@aadarshsingh6479 3 года назад

Excellent explanation

@MedicosisPerfectionalis 3 года назад

Thank you 🙏

@Tanya-dc4ne 4 года назад

Okay.. We will not confuse with flow volume loop😂

@MedicosisPerfectionalis 4 года назад

Awesome 👏

@ashrafnaef7612 3 года назад

Huge thanks sir ❤

@MedicosisPerfectionalis 3 года назад

My pleasure 😇

@arpitahalder1491 2 года назад

Outstanding 🙏🙏🙏

@MedicosisPerfectionalis 2 года назад

Thank you 😊

@user-ju4pc4ug8e 4 года назад

Thank you for these great videos and your great explanation..i have a question and i will be very thankful if you answer (i know that surfactant lines the alveoli and it gives it the tendency to get smaller because of its surface tension so why surfactant opposite surface tension ?)

@MedicosisPerfectionalis 4 года назад

It’s a fact in physics that surfactant decreases surface tension...Please watch my video on surfactant.

@MedicosisPerfectionalis 4 года назад

Surfactant ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-B_XzUDClgac.html

@salaheddinekniweer502 3 года назад

always great i must say that always

@MedicosisPerfectionalis 3 года назад

Thank you so much 😊

@seunesther 3 года назад

Perfect video

@MedicosisPerfectionalis 3 года назад

Thank you 😊

@johndorian4074 2 года назад

Medicosis, thank u for this amazing video! At 17:00 tho, I think it should be like this: Compliance lung only = Compliance chest wall only (they both should be 2 L / kPa) > Compliance lung + chest wall (which should be 1 L / kPa) right?

@sathsaranigamage4924 Год назад

Yeah I think so too. That should be true as compliance is the gradient of the pressure- volume curve and clearly it's seen that gradient is lower in the combined system than that of lungs only or chest wall only . And may be the gradients of lung and chest wall are the same.✌

@brilliantfuture1841 3 года назад

Please help In gyton’s book ,I read that (the compliance of the combined lungthorax system is almost exactly one half that of the lungs alone) .and can’t match it with what you mentioned here about differences between compliance of lungs and lung with chest wall ......... thanks

@nezarmohamed5850 3 месяца назад

More than excellent

@MedicosisPerfectionalis 3 месяца назад

Thank you so much!

@sarahdavari Год назад

Thanks!

@MedicosisPerfectionalis Год назад

You’re very welcome 😊

@shahdismailalqatu9711 4 года назад

thank you sir !! you save me every single semester ,, plz make videos about endocrine system soon ..

@MedicosisPerfectionalis 4 года назад

Thank you so much 😊 I will try

@ahmedegymed5853 Год назад

Thank you

@MedicosisPerfectionalis Год назад

My pleasure 😇

@waheguruwaheguru9176 3 года назад

Awesome 👍😎

@MedicosisPerfectionalis 3 года назад

Thank you 😊

@HabibiGa1z 3 года назад

What is the difference between static and dynamic pressure-volume curves?

@Mariamhamwi 4 года назад

In pneumonectomy, Doesn’t the decrease in intrathoracic pressure cause the diaphragm to pull downwards to accommodate the increase in volume? If not, why not?

@pouriaag2094 4 года назад

hi, nice video. isnt the compliance for lung only, greater than lung + chest wall, since it's slope is greater?

@johndorian4074 2 года назад

I think it should be like this: Compliance lung only = Compliance chest wall only (they both should be 2 L / kPa) > Compliance lung + chest wall (which should be 1 L / kPa)

@gayathrijinesh3004 4 года назад

Pleural pressure is same as transpulmonary pressure, just change the sign. This is valid only when intrapulmonary P. is 0, right? That is at the beginning and end of inspiration/expiration.

@drnishantguptajnmc 3 года назад

Awesome

@MedicosisPerfectionalis 3 года назад

Thank you 🙏

@vineetkumarpandey3003 2 года назад

In inspiration as alveolar volume increases, surfactant density decreases therefore leading to increasing surface tension and thereby lessening compliance. That means that as the curve proceeds the slope should be going down rather than up right ? But then how come the inspiration plot is sloping upwards with increasing inspiratory volume ?

@srirambhardwaj2343 3 года назад

Thank.you.sir.

@MedicosisPerfectionalis 3 года назад

My pleasure 😇

@wamunyimawamunyima582 Год назад

I'm here to save my academic year 😤

@MedicosisPerfectionalis Год назад

I wish you success!

@choykage26 3 года назад

Automatic Subscribe! Hilarious Lecture!🤣

@MedicosisPerfectionalis 3 года назад

Thank you so much 😊

@choykage26 3 года назад

@@MedicosisPerfectionalis ❤

@RogerRoids 3 года назад

So you're saying the pressure volume loop and flow volume loop are the same thing, right? Thanks!

@MedicosisPerfectionalis 3 года назад

No, they are not! 😊

@andriavinithalobo5813 3 года назад

Is relaxation pressure and pressure volume means same?

@CarlosPires-du3ps Год назад

why in the beginning of expiration the curve is flat?

@Mariamhamwi 4 года назад

I love you more each day. Life savior

@MedicosisPerfectionalis 4 года назад

Thanks 😊

@amyacquavella-geddes3250 4 года назад

Can not find pulmonary playlist. Please add link to this video

@MedicosisPerfectionalis 4 года назад

Sure! It’s here: Pulmonology ru-vid.com/group/PLYcLrRDaR8_dU-SqmEQlxINRVMmVsqYYO

@gulfwarveteran8528 4 года назад

Sir excellent teaching but just wanted to ask that are u a Vietnam veteran

@MedicosisPerfectionalis 4 года назад

Thanks 🙏 No, I am not.

@MsMadamadamada 4 года назад

how does having no surfactant leads to increased surface tension? mechanism...?

@MedicosisPerfectionalis 4 года назад

Great question. The answer is here: Surfactant ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-B_XzUDClgac.html

@tanveerhashmi9811 8 месяцев назад

Your are gem +funny🥰

@omidmobargha3308 2 года назад

Hi, I am an Italian medical student (pardon for my english) ! I have a question: why did you change the pressure into positive values ? I've searched on lots of sites and I didn't understand why the pressures are positive. Don't we have negative pressures in the lungs at the beginning of inspiration ? The negative pressure is useful in order to let the air flow in the lungs,. Thank you so much !

@MedicosisPerfectionalis 2 года назад

Which part of the lecture? Can you give me the timestamp? (i.e. at which minute and second)?

@omidmobargha3308 2 года назад

@@MedicosisPerfectionalis thank you for the reply, I've understood it later !

@karthikkamaraj9912 2 года назад

Negative pressure 👌💥💥

@Tabarekoday Год назад

Do u use magic¿ how could u make it so easy¿

@MedicosisPerfectionalis Год назад

Thank you so much ☺️

@drykMED Год назад

17:05 If lungs alone have a tendency to collapse, so surfactant molecules are accumulating i.e. conc of surfactant increases 11:01, decreased surface tension, increased compliance. So shouldn't the compliance be on higher side for lungs alone??? I think the answer lies in the analogy that lungs alone have increased tendency to collapse, and when placed alone they start collapsing, now if we try to fill the collapsing lung with air, they would resist the filling, so decreased compliance Similarly when chest wall alone is placed, they have a tendency to expand, and they start expanding, and now while expansion when we try to fill the chest wall with air, they take up air very easily and expand even faster, hence highly compliant, so max compliance. Is this the right line of thinking plzz explain???