You’re a gifted teacher! I literally watch all your playlists when it comes to that topic at University. Not only do you make me understand but you make the topics so interesting that I’m reminded of the fact that I study this because I love science. So grateful for your videos. What a blessing!
Medical student here - Recently found your channel and I consider it a hack for medical school. Extremely detailed and so well presented it's easy to understand and follow through. This is a goldmine! Thank you very much!
I’m so glad I’m not the only one doing this! The lectures my profs do are so dry, nothing’s going into my brain. I come here to relearn. I even find myself answering his rhetorical questions. Helps me so much
TTP of -6 on inspiration means pressure outside is higher then the thoracic cavity pressure, which means pressure from outside is pushing on the chest cavity. Recoil of the chest cavity is towards inside on inspiration.
Just want to say how absolutely grateful I am for these videos. Everything you explain is super clear and even the most complicated topics are broken down so clearly! You are a fantastic teacher. I hope you go on (or already do) teach professionally, the world needs you!
awesome thank you, after 20 years of clinical practice I'm diving back into my passion -anatomy and you guys make it a true pleasure. Thank you for illustrating the beauty of this incredible body with simplicity and grace
I love the way you teach! Learning with you is so entertaining especially when you reach the “lightbulb” moments and you end up getting excited too even tho you obviously know all this material already 😂👍🏼
There is a saying, "Those that cannot do, teach". Zach and Ninja Nerd Lectures, you have effectively proven this all wrong! Thank you for being incredibly gifted & sharing your knowledge and talent with the world.
9:50 3 ways by which intrathoracic volume increases: 1) Downward movement of the diaphragm 2) Bucket handle pulling up of the ribs by the external intercostals 3) Outeard movement of the sternum
i am so blessed my cousin have shown me ur channel , i am a second year medical student , i study everything in french language but i still watch ur vids and they make everything so much easier , i am so so so blessed i wanna cry
You are truly gifted in the area of teaching. I am so grateful for your videos and explanations. They really help supplement the basic knowledge that is needed before you review detailed mechanisms.
professors of medical universitie are nothing in front of you ....you have a great tallent and you know how to explain teach and learn to other people...good luck and keep up the great work!!
Thanks for your explanation of respiratory pressures , I have a paralyzed right diaphragm, probably Phrenic nerve damage. Obviously there must be a nerve on both sides of the diaphragm and each side of the diaphragm must work independently and that is why I have read about tacking the diaphragm down on the paralyzed side. Thanks for clarifying some of this in my own mind.
Keep up the great work. Really enjoying your tuturial vidoes on physiology. Everything is explained so much easier to understand comparing to those thick books.
Thank you very much !! It's really amazing to know that we have all those things occuring while we're breathing. Using different colors and organized board beside the clear explanation that you've made makes it even much more amazing :)
i cant thank u enough for your efforts but what i love the most about your videos is that you are trying your best with all love and effort to make us understand and that is priceless thank u thank u thanku
Hey there! wonderful! VID! at 12:42 we are talking about inspiration, which mean "Boyles Law" not holding any more... since its just a private case of the ideal gas law: pV=nRT=const. At inspiration n is not constant anymore...
Hi! You are very good in your explanation. One doubt...If positive transpulmonary pressure inflates the lung, how come in Video 2 you said that negative transthoracic pressure pulls the thoracic cage outwards? By same analogy, the negative transthoracic pressure should drive the thoracic cage inwards.
I have the same doubt....If transthoracic pressure is -6mmHg then it means outside pressure( atm) is more than inside( pleural)....so it should deflate the lung.....but in the video the red arrows show inflation
I don’t understand why trans thoracic pressure is more negative and chest expanded (enflat) in the previous lecture when it was negative the chest wall is deflating . and thank you so much you are the best
I wish I found your vids before my fist midterm 😢 but I’m so happy I found them because now I think I have a chance at passing the second midterm ! Thank you so much
Thank you so much for this! You're really great at explaining these complicated concepts in simple ways, which is fantastic and definitely not a skill that all teachers have. Watching this in preparation for my first year med exams and it is SO HELPFUL!
Thank you so much 💕 sir...how wonderful 😊 method of teaching u have... amazing 😍 sir...your 30 min lecture ( concept)= 1 hr lecture of mine cllg (only notes)
I appreciate your time and efforts for these videos. I am currently enrolled in an all-online course and your methods of teaching the content makes me understand it. Thank you!!!
In your previous video (Part 1, time 27:05) you said the negative result in transthoracic pressure would cause deflation which I interpret as the atmospheric pressure, due to it being higher, would press the chest wall inwards, which you also indirectly point out in the video. While in this video the -6 mm Hg transthoracic pressure makes the chest wall expand outwards which contradicts the previous explanation. What am I missing here?
I don't think that the decrease in intrapleural pressure would result in the pressing of chest because normally the intrapleural pressure is also less than the barometric pressure. What I comprehend from his statement is that transthoracic pressure just describes the movement of the chest, tje decrease in transthoracic would result from the expansion of chest causing the increase in volume and vice versa. The inflation and deflation of the lungs mainly depend upon the transpulmonary pressure. More positive the pressure, more will be the inflation.
Hopefully this helps people as they scroll through comments are confused by this question. What he described in the last video was that elastic forces and pressure forces are different. The elastic forces pull the lungs inward and the pressure at rest when the pleural cavity is at -4mmHg is going to be outward (ie: in favor of lung expansion). The body wall of the thoracic cavity has elastic forces pulling outward and this makes sense if we think about the extensive number of muscles and connective tissue that elevate the rib cage. Comparatively, the pressure on the body wall is going to push the thoracic cavity inward. This relative pressure between the pleural cavity and the body wall is antagonistic to the elastic forces on the body wall. It is one of reasons passive expiration occurs directly after we fill our lungs with air and dramatically increase that inward pressure on the body wall. It is important to remember that the elastic forces of the thoracic wall are going to be generally stronger than the small difference of pressure in the pleural cavity. If our thoracic wall collapsed based on that differential pressure that promotes deflation our bones and muscles would have to be as thin and readily able to recoil as the comparatively thin tissue that makes up our lungs. Luckily this is not the case we have to think about the relative interactions between the anatomical parts not just the pressure differences alone.
So , -6 is less than -4 and minus a trans pressure means it tends to collapse ((deflate the chest wall here)) but because -6 is less than -4 , this means that the deflation is weaken more and more and this makes the chest wall less able to actually deflate as before so it makes the chest wall easy to expand compared to the rest state , so this helps in inspiration because in inspiration you need your chest wall to be easily expanded to allow more volume in that chest cavity and less pressure in it according to Boyle's law and this makes air enters the lungs . I hope you understood .
new subscriber here, your explanation is a lot easier to understand and what I read in book makes more book sense. thank you so much . your videos helped me a lot
correction -23:00.......during inspiration intrapul. pressure will become equal to atm. pressure i.e 0 at the end of the inspiration not at the peak of inspiration..peak of inspiration is the mid point of inspiration where intrapul. pressure is max negative i.e negative 1...
You’re a gifted teacher! I literally watch all your playlists when it comes to that topic at University. Not only do you make me understand but you make the topics so interesting that I’m reminded of the fact that I study this because I love science. So grateful for your videos. What a blessing!
I'm watching this as a high schooler because I'm curious and want to see how God decided to create life.
Medical student here - Recently found your channel and I consider it a hack for medical school. Extremely detailed and so well presented it's easy to understand and follow through. This is a goldmine! Thank you very much!
Okay. I might have shed tears of relief during this video. Have been struggling with this concept and now you make it all so simple. THANK YOU!!!
ME TOO!!!! this gave me so much relief.
Same!!! Thank you 😭😭
You re genuis ,you should teach teachers how they sould teach.thank u
you are the only thing getting me through med school
Same. I find myself here every new block.
He's keeping my doctor's from killing me.
I’m so glad I’m not the only one doing this! The lectures my profs do are so dry, nothing’s going into my brain. I come here to relearn. I even find myself answering his rhetorical questions. Helps me so much
im always over prepared as a nursing student! awesome
Feel that. NNS + medicosis perfectionalis and Dirty Med cause boards= survival
You are a thousand times better than any of my university lecturers. I cannot thank you enough.
TTP of -6 on inspiration means pressure outside is higher then the thoracic cavity pressure, which means pressure from outside is pushing on the chest cavity. Recoil of the chest cavity is towards inside on inspiration.
Just want to say how absolutely grateful I am for these videos. Everything you explain is super clear and even the most complicated topics are broken down so clearly! You are a fantastic teacher. I hope you go on (or already do) teach professionally, the world needs you!
Bro the fact that he pulled out an anatomy model to explain it? Thank you for making your lessons free man, and thanks to the whole team too
awesome thank you, after 20 years of clinical practice I'm diving back into my passion -anatomy and you guys make it a true pleasure. Thank you for illustrating the beauty of this incredible body with simplicity and grace
Man ... you explained my whole first respiratory therapy semester into these videos .. VERY HELPFUL! Thank you!!!!
I love the way you teach! Learning with you is so entertaining especially when you reach the “lightbulb” moments and you end up getting excited too even tho you obviously know all this material already 😂👍🏼
There is a saying, "Those that cannot do, teach". Zach and Ninja Nerd Lectures, you have effectively proven this all wrong! Thank you for being incredibly gifted & sharing your knowledge and talent with the world.
9:50
3 ways by which intrathoracic volume increases:
1) Downward movement of the diaphragm
2) Bucket handle pulling up of the ribs by the external intercostals
3) Outeard movement of the sternum
I have no understanding of the people who give thumbs down. This is just excellent. You are wonderful. Thank you!
Actually I was searching dr najeeb for this topic. But I didn’t find it. And then I clicked this one. It’s so so well explained. Thank you sir.
Literally the only guy helping me get thru med school :)❤
i am so blessed my cousin have shown me ur channel , i am a second year medical student , i study everything in french language but i still watch ur vids and they make everything so much easier , i am so so so blessed i wanna cry
You are truly gifted in the area of teaching. I am so grateful for your videos and explanations. They really help supplement the basic knowledge that is needed before you review detailed mechanisms.
My school owes you half my tuition! Thank you for all the videos!!!!
I love it everytime you say "its so beautiful" or "its so amazing". You clearly love teaching about the body in general. I subscribed!
professors of medical universitie are nothing in front of you ....you have a great tallent and you know how to explain teach and learn to other people...good luck and keep up the great work!!
You deserve my Profs. Salary! Thank you for your enthusiasm and clear explanations!
The best explanation ever
+haya alamleh Thank you!
Do you have any general physiology vidoes.
And then God sends us a ninja, a ninja who would save our lives! Glad having my concepts cleared by you Sir, much respect!
THIS IS SO BEAUTIFUL!!!! OMG!!! The best channel on the world and the best for medical students.
im a medstud. im thankful for u. here bcs IVE done the part 1.
Seeing so much enthusiasm is just amazing
Thanks for your explanation of respiratory pressures , I have a paralyzed right diaphragm, probably Phrenic nerve damage. Obviously there must be a nerve on both sides of the diaphragm and each side of the diaphragm must work independently and that is why I have read about tacking the diaphragm down on the paralyzed side. Thanks for clarifying some of this in my own mind.
Keep up the great work. Really enjoying your tuturial vidoes on physiology. Everything is explained so much easier to understand comparing to those thick books.
+Nguyen Nguyen i'm so glad that these videos are helping it makes it all worth it! Thank you again for your kind comments.
you have confirmed my theory that smart guys are more attractive.
Hell yes
😂😂
You are quite a blessing for all of us med studs
Thank you very much !! It's really amazing to know that we have all those things occuring while we're breathing. Using different colors and organized board beside the clear explanation that you've made makes it even much more amazing :)
love the way he says THIS BIG OL' BEAST RIGHT HERE hahaha, thanks for everything, I owe you so much and wish you all the best
This ninja is saviour ! God bless his him , and his efforts deserve a salute 👍🏼
Thank you from the bottom of my heart for all of the great work you have done, you are pure gold!
It was worth going back and using models- it explained how intercostals were attached which is what I needed to know.
P
You are helping me at that time when I need it the most
a very big salute to your efforts u are real guru🙏 gurubhyo namaha🙏🙏🙏 a good teacher has a great place always in student's heart 💓...
i cant thank u enough for your efforts but what i love the most about your videos is that you are trying your best with all love and effort to make us understand and that is priceless thank u thank u thanku
This guy is making life easy for us out here.
Hey there! wonderful! VID! at 12:42 we are talking about inspiration, which mean "Boyles Law" not holding any more... since its just a private case of the ideal gas law: pV=nRT=const.
At inspiration n is not constant anymore...
That you for this I am a visual learner and this has saved me so much time
I became a member and the extras you give are amazing
Hi! You are very good in your explanation. One doubt...If positive transpulmonary pressure inflates the lung, how come in Video 2 you said that negative transthoracic pressure pulls the thoracic cage outwards? By same analogy, the negative transthoracic pressure should drive the thoracic cage inwards.
he clearly said in the last video that transthoracic pressure deflates the lung.
I have the same doubt....If transthoracic pressure is -6mmHg then it means outside pressure( atm) is more than inside( pleural)....so it should deflate the lung.....but in the video the red arrows show inflation
Same doubt
Same doubt
Same here. I dont get it
God I can't believe that I finally understood this complex topic thanks to you ,you're truly amazing❤
I don’t understand why trans thoracic pressure is more negative and chest expanded (enflat)
in the previous lecture when it was negative the chest wall is deflating .
and thank you so much you are the best
Ena mourad karra el zabour
I wish I found your vids before my fist midterm 😢 but I’m so happy I found them because now I think I have a chance at passing the second midterm ! Thank you so much
I am from India...
Your lectures are amazing 👏
Thank you so much for this! You're really great at explaining these complicated concepts in simple ways, which is fantastic and definitely not a skill that all teachers have. Watching this in preparation for my first year med exams and it is SO HELPFUL!
loved this! hopefully he gets paid for these likes and comments, he deserves it.
this Man is an Angel !
thank youuuu
very good explanation.you are a really scientific man come from heaven.Thanku so much..we keep supporting you
May GOD blessed you.
This is the only channel in which I click the like button without finishing the vid...
Thank you so much 💕 sir...how wonderful 😊 method of teaching u have... amazing 😍 sir...your 30 min lecture ( concept)= 1 hr lecture of mine cllg (only notes)
video is lengthy but it pays off. hats off to the teacher. at the end i got idea about breathing mechanism of body.
thanks a lot.
I appreciate your time and efforts for these videos. I am currently enrolled in an all-online course and your methods of teaching the content makes me understand it. Thank you!!!
You are really helping me out through medschool ...Your videos are just dope
you're the best in teaching,thanks a lot.
In your previous video (Part 1, time 27:05) you said the negative result in transthoracic pressure would cause deflation which I interpret as the atmospheric pressure, due to it being higher, would press the chest wall inwards, which you also indirectly point out in the video. While in this video the -6 mm Hg transthoracic pressure makes the chest wall expand outwards which contradicts the previous explanation. What am I missing here?
Same doubt
I don't think that the decrease in intrapleural pressure would result in the pressing of chest because normally the intrapleural pressure is also less than the barometric pressure. What I comprehend from his statement is that transthoracic pressure just describes the movement of the chest, tje decrease in transthoracic would result from the expansion of chest causing the increase in volume and vice versa. The inflation and deflation of the lungs mainly depend upon the transpulmonary pressure. More positive the pressure, more will be the inflation.
@@kayshaa nice one . thank you so much
Hopefully this helps people as they scroll through comments are confused by this question. What he described in the last video was that elastic forces and pressure forces are different. The elastic forces pull the lungs inward and the pressure at rest when the pleural cavity is at -4mmHg is going to be outward (ie: in favor of lung expansion). The body wall of the thoracic cavity has elastic forces pulling outward and this makes sense if we think about the extensive number of muscles and connective tissue that elevate the rib cage. Comparatively, the pressure on the body wall is going to push the thoracic cavity inward. This relative pressure between the pleural cavity and the body wall is antagonistic to the elastic forces on the body wall. It is one of reasons passive expiration occurs directly after we fill our lungs with air and dramatically increase that inward pressure on the body wall. It is important to remember that the elastic forces of the thoracic wall are going to be generally stronger than the small difference of pressure in the pleural cavity. If our thoracic wall collapsed based on that differential pressure that promotes deflation our bones and muscles would have to be as thin and readily able to recoil as the comparatively thin tissue that makes up our lungs. Luckily this is not the case we have to think about the relative interactions between the anatomical parts not just the pressure differences alone.
So , -6 is less than -4 and minus a trans pressure means it tends to collapse ((deflate the chest wall here)) but because -6 is less than -4 , this means that the deflation is weaken more and more and this makes the chest wall less able to actually deflate as before so it makes the chest wall easy to expand compared to the rest state , so this helps in inspiration because in inspiration you need your chest wall to be easily expanded to allow more volume in that chest cavity and less pressure in it according to Boyle's law and this makes air enters the lungs . I hope you understood .
new subscriber here, your explanation is a lot easier to understand and what I read in book makes more book sense. thank you so much . your videos helped me a lot
It was fruitful, I'm so glad to find you and your amazing teaching video.
Respiratory therapist student here 👋🏿 I listen to your videos during in class " lecture" b/c that's the only way I will survive this program
You're super super super fabulous no word can explain your value sir
Dude, this topic is really difficult. I understood everything thanks to you!
awesome dude...u make sense...thats beautiful mechanism
correction -23:00.......during inspiration intrapul. pressure will become equal to atm. pressure i.e 0 at the end of the inspiration not at the peak of inspiration..peak of inspiration is the mid point of inspiration where intrapul. pressure is max negative i.e negative 1...
Thank you. Your videos are not just making studying easier, it inspires me.
My med school cites you! Just think about that man… you’re a legend.
As always, you're the best!!!!❤️❤️
I appreciate all of your efforts
Thank you
How do you explain this better than my professor, like wow
I'm actually learning and understanding...finally
than you so much
You are just the best, may God bless you for me ❤
Thank you. You are great at teaching... I am learning a lot from you. God bless you
I watched every video on the internet about negative pressure inspiration and i finally get it
i think you are more better than najeeb................love you ...your lectures helped me alot in most difficult times
your videos are awesome really simplify everything! thanks.
Love this! Making it much simpler to understand as my textbook was confusing me
Thank you so much doctor you have explained in one hour what our doctors fail to explain it in months
Heartly thank you 🙏🏻 💙 😇
I got a 115% on my physiology test thanks to you.
Ur videos are great...I just love it ..I literally paused the video to comment... thanks a lot 😊
man I love the way you look at your creation on your board and are fascinated by the laws our body function hahah
Here take it ❤
Don't be shy, just take it
❤
🤲
Hi I'm from iran and i love your tutorials they are awesome
In this tutorial:just your effort to write all of mmHg(s)🤣
MY Mind is blown honestly.
Can someone tell why visceral pleura gets pulled/expanded along with the thoracic wall ,when the thoracic wall is expanding . 14:19
I wish Zack had quizzes after these videos too for us to test our knowledge post lecture.
At 19:00 you are saying that TTP=- 6 ..here negative indicates chest wall being pulled out? Pressure outside is more than intrapleural still
Excellent understanding
yall keep these coming! they are soo good! and extremely helpful. Thank you guys
MAN I LOOOVE THIS GUY
Thank you so much for your hard work and you clear explanation. I finally get to understand this topic. It does really help me so much!
He is a god! Things are so clear
Thank you, I understand lectures much easier with your explanation :)
Perfect explanation
no words for you ❤❤❤❤thank you
thank you for eveything, i wouldnt do anything for my exams without you
Thank you so much sir ,love from India ❤
I love you Ninja Nerd ❤️♥️❤️
you're a legend mate