Respiratory | Mechanics of Breathing: Expiration | Part 3

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@@NinjaNerdOfficial Hey. Great video. I have a question. If the air keeps flowing out, how will it equalize with the atmospheric pressure when the volume keeps decreasing so the pressure should keep increasing

[@meshalalghamdi8704]

tolu falaye diaphragm and thoracic cavity will increase so the volume and the pressure will decrease then the air will be flown inside ur lungs and thats due to the elasticity of the lung. If the volume keeps decreasing the elasticity will increase cause they r inversely proportional to each other.

[@rakeshnaidu6901]

@@NinjaNerdOfficial Is intra pleural pressure during rest and quiet expiration is -4 mmHg the same....can any one clear the doubt...

[@rakeshnaidu6901]

@@meshalalghamdi8704 Is intra pleural pressure during rest and quiet expiration is -4 mmHg the same....can any one clear the doubt...

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Finally understood the concept of intra pleural and intra thoracic pressure.Thanks professor✌️

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[@Rawan_Adel.]

* Forced inspiration: Diaphragm, external intersostals + SCM, scalenes & pectoralis minor. * Quiet expiration: no muscles involved, totally passive. By elasticity ofof the lungs. Also diaphragm & external intercostals are relaxing. * Forced expiration: -- Abdominal wall muscles: External oblique Internal oblique Transverse abdominus A little bit by rectus abdominus. -- Internal intercostals.

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thank you so much. the way you explain, repeat and connect is amazing. It is such a privilege to have your videos available on the internet. :*

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Thank u so much for clearing mechanism of breathing.you r best " GURUJI" GURUJI is a hindi word.It means teacher.

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Thank you brother! Pure gold. When we can understand the basic science and the normal mechanics better , we can treat patients to normalize their abnormalities with confidence. We need to spend more time understanding the norms before attempting to correct the abnormal. Love the clarity of the explanation that's driven with passion.

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Wow! I have been automatically breathing and I had no idea how the system worked. Sure it was technical, but your presentation made it simple to understand! Awesome job! Thank you!

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Dude. I actually applied Boyle's law and the Pressure Concentration Gradient in explaining how we breathe. Never have I imagined I'd be able to do that. Thanks so much for teaching me. Keep up the good work!

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I'm reviewing this while preparing for pneumology, it makes everything easier

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Really appreciate your work. To be honest, first time understood the breathing mechanism properly, even though I have completed med school😆

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I really appreciate your lectures. I am a respiratory student. My professor was not able to explain the mechanics of breathing properly. I was confused until now, thank you for 👍🤝🤝🤝great work

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I finish watching the mechanics of breathing, thank you so much, Zach

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this was amazing information... i am studying for my physiology course and your youtube series on the inspiration/expiration process have been very useful! keep up the good work! thank you...

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this has really made my revision easy, it is 6yr old video but was so clear

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i have no prior knowledge or background other than breathing with my lungs like everyone and i got it thank you keep doing what you are doing

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The best explanation of inspiration I have ever heard 😃

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[@MiyaEvaCute]

Scalenes are not accesory, it is one of the three muscles active during inspiration. Not only external but also intetnal intercostals are active during inspiration. Other than that totally agree with everyone. U are a knowledgeble monster of teaching ! Enjoy it a great deal ! Keep doing it...waiting for new lectures !

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Excellent description

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[@Sunilbihari007]

Really excellent. One thing I want to be clear about. You said when chest wall is expanding during inspiration it is talking away parietal pleura away from the visceral pleura. But while explaining expiration process you said when lungs are contracting due to elasticity it is also pulling visceral pleura along with it because both parietal pleura and visceral pleura are almost adhered. So it was little bit confusing for me. One more point. During the process of inspiration you said (though only one single time) that intrapleural pressure is --4 mmHg as compared to atmospheric pressure. During this explanation you once said that we substract atmospheric pressure from intrapleural pressure I.e. 756-760 which results in --4mmHg. Little confusing for me. But what a great teacher you are. I am a great fan of you.

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