Seriously, you're amazing. I cannot express how thankful I am right now. My exam is next week and now that I actually understand this topic, revision can become a lot easier.
Hey! This is awesome! Thank you so much for taking the time to do this. You're a great teacher - clear and concise and you make it really easy to understand the concepts involved. This has been a great help to me. Thanks!
Thank you soooooooo much for these videos. You are a wonderful teacher. PLEASE make more videos because they continue to help people years and years after they are made. Even if you just post your lectures, they really help people!
Thank you so much for this video. In less than twenty minutes I understood a concept I have struggled to comprehend through hours of lecture and reading.
You are a saint!! This is going to help me with my exam tomorrow. I kept going through my notes and it just wasn't making sense to me. Definitely helped!
Sometimes we forget that the lungs are cells and need oxygen and nutrients to survive as well. So normally you think there is 100 mm Hg of oxygen returning from the alveoli, BUT the bronchial artery just lost O2 to the lung tissue and then anastamoses (joins) with the pulmonary vein, thereby mixing the 100 mm Hg O2 with less O2 to bring the pO2 in the pulmonary vein down to 95 mmHg as it enters the left atrium to be pumped out of the body. Good job noticing this! People rarely do!
Very simple! Thanks for posting this video here! There will be an exam about this on Tuesday and It really helped me understand the process of respiration.
Thanks and good question! The answer to your question has to do with a very rarely discussed topic in A&P (even in medical school) and that is because of the bronchial artery. The bronchial artery is NOT part of the pulmonary trunk that sends blood from the Right Atrium to the heart to be oxygenated at the alveoli. The bronchial artery branches from a few different locations (one of them being directly from the thoracic aorta) and supplies OXYGENATED blood to the tissue of the lungs.
hey i just wanted to say thank you so much for making this video! i missed two days of school and missed out on this. this video helped me catch up on what i missed!!
Great teaching, giving easy to understand explanations. Not like other teaching videos where there is fast talking, that is makes it harder to process the information.
I don't know what it is but it's easy to follow what you're saying. Maybe your voice isn't grating or boring. You have a good way of explaining things which makes it easier to listen to and understand. Excellent.
Thank you so much i have been reading for hours and couldn't get this concept.. Thank you for making it super simple to comprehend., and please keep up the wonderful work. God bless.
I didn't come up with that saying, but one I came up with is apneustic vs. pneumotaxic. Apneustic is controling the inhaling. Pneumotaxic "taxes" the apneustic. To be "taxed" is not good so the pneumotaxic stops breating (inhalation). So basically you keep breathing in (2 seconds) due to apneustic then pneumotaxic shuts that off and you passively exhale (3 seconds). 2+5=5 seconds to inhale and exhale once (one breath), therefore 60sec/5=12 breaths per minute average. Longer to breath out.
You've done an exceptional job, I will be sharing this video with my respiratory therapy classmates! Looking forward to your other work, and new videos @ProfRoofs!
thank you!! I have been studying this for finals for weeks and haven't understood it and you just broke it down perfectly! honestly, great explaination :)
you've got a new fan! Thanks a lot for sharing the wealth of you knowledge with us. I wish all professor were like you so then there weren't be place for "poor students". Once again thanks a lot!!!
biology test today and this completely helped me study!! I watched your other video about the blood flow in the heart, thanks so much! you helped me a lot :)
Great video but there is one thing I don't understand. Why exactly does the pO2 in the alveola remain constant at 100 mmHg even though oxygen diffuses into the blood. And why does the pO2 in the tissue remain constant at 40 mmHg even though oxygen diffuses there. Like why does it not increase ?
The PO2 remains relatively constant because you are always breathing air (O2) in to replace it. In the tissue, the O2 is being delivered by the blood while it is being consumed by the cells to make ATP in the mitochondria. This maintains a dynamic equilibrium. Great questions!
Thank you. I would say there needs to be clarification as to why we have diffusion rather than 'what it is'. Therefore diffusion exists in a state of pressures of gases, so that a high percentage of for example o2 will diffuse across a membrane to a lower concentration or pressure. With external respiration some o2 is left in the alveoli, but we need a high percentage to cross to the blood capillaries, this would would explain the movement of o2 and co2. My experience of biophysiology explanations do not make clear the 'why' and state rather what is happening.
when the po2 in alveoli is 100 And po2 in the capillary side of pulmonary artery is 40 ,how come po2 in the capillary side of pulmonary vein is 100 , when the o2 is move from alveoli to pulmonary vein (i mean it should be 140 right ) and how come pco2 is 40 (In the arterial blood )when all co2 molecules diffuse from capillary to alveoli. Any one explain me guys ???
Your videos are phenomenal!! I have a A average in A&P II because I've been watching and learning from you and your videos! Thank you so much! Have you posted any videos discussing respiratory and urinary control of pH?
Great video. Do you think you can do a video more in depth like determinants of alveolar gas tension and alveolar oxygen tension, things of that nature?
It is for sure a difficult topic. I used to kick myself over it many times. God bless and hope all goes well and happy holidays!
I've watched a lot of videos about this subject and this is by far the best one hands down.
Seriously, you're amazing. I cannot express how thankful I am right now. My exam is next week and now that I actually understand this topic, revision can become a lot easier.
That was extraordinary! Thank you for making this so easy to learn!! I wish you were my professor.
Thank you!!! 😊
Hey! This is awesome! Thank you so much for taking the time to do this. You're a great teacher - clear and concise and you make it really easy to understand the concepts involved. This has been a great help to me. Thanks!
That's what's better than others teacher 😜😀😁😺😉😅
Q😮
Thank you for saving me from failing Human Anatomy. Your a way better teacher than my teacher or any other teacher I have had for that matter haha.
You explained a sophisticated topic in such a simple way
It feels like I enjoyed learning
Jazakallah (may god reward you)
Shokran!! Very much appreciated!
Thank you soooooooo much for these videos. You are a wonderful teacher. PLEASE make more videos because they continue to help people years and years after they are made. Even if you just post your lectures, they really help people!
❤
Thank you so much for this video. In less than twenty minutes I understood a concept I have struggled to comprehend through hours of lecture and reading.
You are a saint!! This is going to help me with my exam tomorrow. I kept going through my notes and it just wasn't making sense to me. Definitely helped!
Sometimes we forget that the lungs are cells and need oxygen and nutrients to survive as well. So normally you think there is 100 mm Hg of oxygen returning from the alveoli, BUT the bronchial artery just lost O2 to the lung tissue and then anastamoses (joins) with the pulmonary vein, thereby mixing the 100 mm Hg O2 with less O2 to bring the pO2 in the pulmonary vein down to 95 mmHg as it enters the left atrium to be pumped out of the body. Good job noticing this! People rarely do!
This was great!! Why can't everyone explain it like this?! Thank you so much :)
Very simple! Thanks for posting this video here! There will be an exam about this on Tuesday and It really helped me understand the process of respiration.
I had such a confusion regarding this topic... You made it pretty much easier. Thank you so much! :)
Glad to have helped!
Thanks and good question! The answer to your question has to do with a very rarely discussed topic in A&P (even in medical school) and that is because of the bronchial artery. The bronchial artery is NOT part of the pulmonary trunk that sends blood from the Right Atrium to the heart to be oxygenated at the alveoli. The bronchial artery branches from a few different locations (one of them being directly from the thoracic aorta) and supplies OXYGENATED blood to the tissue of the lungs.
hey i just wanted to say thank you so much for making this video! i missed two days of school and missed out on this. this video helped me catch up on what i missed!!
Great teaching, giving easy to understand explanations. Not like other teaching videos where there is fast talking, that is makes it harder to process the information.
I don't know what it is but it's easy to follow what you're saying. Maybe your voice isn't grating or boring. You have a good way of explaining things which makes it easier to listen to and understand. Excellent.
Lots of efforts taken for this video to give its best explanation...
Thankyou sir
Thank you so much i have been reading for hours and couldn't get this concept.. Thank you for making it super simple to comprehend., and please keep up the wonderful work. God bless.
thank you very much for this videos.. I have an exam coming up and this was very helpful!!
I didn't come up with that saying, but one I came up with is apneustic vs. pneumotaxic. Apneustic is controling the inhaling. Pneumotaxic "taxes" the apneustic. To be "taxed" is not good so the pneumotaxic stops breating (inhalation). So basically you keep breathing in (2 seconds) due to apneustic then pneumotaxic shuts that off and you passively exhale (3 seconds). 2+5=5 seconds to inhale and exhale once (one breath), therefore 60sec/5=12 breaths per minute average. Longer to breath out.
You made this so easy!!! Thank you, got my third test on Wednesday, then final the week after. Been struggling on this topic.
This video is WONDERFUL!!!! I was lost before watching
You've done an exceptional job, I will be sharing this video with my respiratory therapy classmates! Looking forward to your other work, and new videos @ProfRoofs!
I got an exam on Tuesday also (a final). Hopefully we both do well! Good luck!
Wow !!! Your Explanation was amazing. You are a real professor. Great ! GOD Bless You.
thank you!! I have been studying this for finals for weeks and haven't understood it and you just broke it down perfectly! honestly, great explaination :)
No problem Tiffany! As I mentioned in the email, just let me know any subjects I can help clarify and I will do my best to post those videos.
❤
Thank you soo much sir! Here from 2019. I greatly appreciate this vodeo
you've got a new fan! Thanks a lot for sharing the wealth of you knowledge with us. I wish all professor were like you so then there weren't be place for "poor students". Once again thanks a lot!!!
very good at explaining, you saved me a ton of time! thank you
Dayyyyyyyyuuuum Gina! (Martin Lawrence expression) That lesson was off the hook. Thanks Dorctor
What a fantastic explanation. Helped me massively with my assignment. Many thanks.
wow your video is awesome!!! im in RT school and this has helped me understand the process...you made this video so easy to understand. THANK YOU!!!!
Can you do a video on henry's and dalton's law?
you made the external and internal respiration much easy to learn. Thank you!
biology test today and this completely helped me study!! I watched your other video about the blood flow in the heart, thanks so much! you helped me a lot :)
May I add, your explanations are excellent and accessible. Nice one :)
"Bing" - the light-bulb just went on! Thank you for your video =)
tekauma5 such a great moment when that happens
This was FANTASTIC! Thank you so much!
Thank you!! I got lost somewhere around the laws of partial pressure. This helped immensely.
super thankful for this video!
You’re welcome!!
You're welcome Conrad.
Excellent job! Keep it up!
You really have a way of making difficult concepts make sense! Many thanks for posting this video!
Best video that actually makes sense 🤗
Thank you for making this awesome video! It means a lot to me.
Awesome video! So easy to understand. This helps me study for my exam on the respiratory system a lot. Thank you.
Where were you MAN?!!!
Thanks a million 😍😭😍😍😍
I have exam tomorrow! Thank you for this amazing quick review ❤
You’re welcome!!!
Great video but there is one thing I don't understand. Why exactly does the pO2 in the alveola remain constant at 100 mmHg even though oxygen diffuses into the blood. And why does the pO2 in the tissue remain constant at 40 mmHg even though oxygen diffuses there. Like why does it not increase ?
The PO2 remains relatively constant because you are always breathing air (O2) in to replace it. In the tissue, the O2 is being delivered by the blood while it is being consumed by the cells to make ATP in the mitochondria. This maintains a dynamic equilibrium. Great questions!
@@ProfRoofs Wow, this makes a lot of sense. Thank you 💯
Wow... thank you so much Dr. Roofs for this very valuable and educational video 😁
You’re welcome ☺️
Thank you so much for this, it was extremely helpful!
You’re welcome 😊
So incredibly helpful and explained beautifully. Thank you!!
Great video...could you explain one thing? How does the PO2 go from 100 to 95 when we switch between looking at the external v. Internal respirations?
This was incredibly helpful thank you!!!
You’re welcome ☺️
2 months late on my reply but hope you found the videos and glad you did well
You're welcome, Leah!
Thank you, very much, and God bless you!
Thank you.... very interesting video....its very easy to understand then concept of external and internal respiration after watching this video
Thank you. I would say there needs to be clarification as to why we have diffusion rather than 'what it is'. Therefore diffusion exists in a state of pressures of gases, so that a high percentage of for example o2 will diffuse across a membrane to a lower concentration or pressure. With external respiration some o2 is left in the alveoli, but we need a high percentage to cross to the blood capillaries, this would would explain the movement of o2 and co2. My experience of biophysiology explanations do not make clear the 'why' and state rather what is happening.
Thank you so much! Your video taught me what i couldn't seem to learn from my textbooks!! :D :D :D
God bless you too
This was so informative. I now have a better understanding of internal ans external respiration, Thank you so much!
❤
Thank you so much this is incredibly helpful. Good Job!!
Anytime!
Wow! You helped me connect the dots... Thank you.💗
thankyou :) do you have a video on the Kidneys?
you're a genius. keep making videos
Awesome, thank you so much for sharing this video it was excellent
You’re welcome!!
very helpful thank you !
Thanks from your support
You're welcome!
thank you so much for this! iv read so much and watched so many videos but this one really explained it all the very best
very clear vid, i hope you can do hemodynamics
really helps! will send it to my professor. thank you!
outstanding teaching, thanks a million
simple. very good. thanks
You're amazing! Let me know how the exam went!
It is difficult, glad to have helped!
I'm confused by the partial pressure of both Oxygen and Co2 , is it constant?
You are welcome. Let me know how exams go. Good luck!
Sure, no problem!
when the po2 in alveoli is 100
And po2 in the capillary side of pulmonary artery is 40 ,how come po2 in the capillary side of pulmonary vein is 100 , when the o2 is move from alveoli to pulmonary vein (i mean it should be 140 right ) and how come pco2 is 40 (In the arterial blood )when all co2 molecules diffuse from capillary to alveoli.
Any one explain me guys ???
Thank you, I needed that.
Your videos are phenomenal!! I have a A average in A&P II because I've been watching and learning from you and your videos! Thank you so much! Have you posted any videos discussing respiratory and urinary control of pH?
Great video. Do you think you can do a video more in depth like determinants of alveolar gas tension and alveolar oxygen tension, things of that nature?
Nice job on this video sir you made it easier to understand thank you
Really simplified........great ..thanks
Selvam Dave you’re welcome!!
Great video, well done
got a 90%, very much appreciated and yes it is simplified
You're Welcome!
Brilliant video. Thanks!
Can u post mechanism of respiration slides
Nice work dude!!!
Wow! You made that very clear, thank you!
how come there is a 5mmhg decrease of PO2 in the blood as it exists the lung and arrives at the tissues?
This video was very helpful...Thank you so much😀
thanks man, great video explanation