Oxygen movement from alveoli to capillaries | NCLEX-RN | Khan Academy
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- Опубліковано 24 лют 2013
- Watch as a molecule of oxygen makes its way from the alveoli (gas layer) through various liquid layers in order to end up in the blood. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Rishi Desai.
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I just have to say, your brilliance astounds me and words cant even express how much you make sense of everything, the magnitude that Im expected to understand as a 1st year nursing student. You simpify in such a way, that is unequivocal, it must be a gift. Your voice helps, its very listenable, especially your accent. Thank you, a million times over, thank you.
amy gdala I've been trying to find words to express my gratitude towards Khan Academy but couldn't. Now you've helped me with, if not accurate, the most close words to thank Khan Academy for these amazing lectures!
its her amygdala
ko TУТ МOЖНO НАKРУTИТЬ ЛАЙКИ, ПOДПИСЧИKOB PАСКРУTКА ГРУПП. ПEРEXOДИTE В ПРOФИЛЬ, TАМ CСЫЛKA НA САЙТ
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Give one location in the human body where partial pressures lower than the unloading tension may be reached. Give a reason for your answer. Please help
As a non-native english speaker, I very much appreciated your clear spelling and the recording quality, along with the god-sent subtitles! *slow clap*
I can't thank you enough for these videos. I wish my teachers would use them! Great resource.
Thank you so much for this...all the respiratory videos are broken down so nicely....I have forwarded it to all my A&P nursing students. Thank you!
I LOVE KHAN ACADEMY!! _TRUE FAN!!
This is the video I was scouring the internet for. My professor nor no UA-cam video I’ve seen seems to address how pO2 in the lungs is actually computed, they just say it! Thank you thank you thank you
Sal, if helping others equates to happiness, then you must be one of the most blissful people on earth.
Fantastic video as always. The speeding up with that choice of music made me smile. Cute.
Emilie Ludén yeah true . sorry for replying after 4 years 😂☺
Thanks for teaching!!
Great vid - but I'm pretty sure there is no thick layer of connective tissue for an O2 molecule to travel through. In fact, the membrane of the Alveoli and the Capillary are fused so as to create as little barrier as possible. Otherwise, a gas such as O2 would not be able to diffuse down concentration gradients. Correct me if I'm wrong.
thank you so much, i'm sure i'll have test on this tomorrow
Exceedingly Impressive Informative and Presented
i never laughed while reading this topic. the music just boosted my energy!!! hahahaaaaaa!!!!!
omg thank you so much, this was sooooooooooo helpful!!!
Thank you so much Khan academy and mr. desai
You saved my day!!!
you are amazing thank u!
Interesting topic and good explanation.
just awesome, thank u bro ❤
wow great vids thank you!
I really can't get over how well this video basically explains lung disease.
11 year old me who has to learn this kind of stuff
These are confusing times
such a awesome video
great video! helped me alotttt
Thanks to you I'm doing good in school in scenes
thank you for enlightening me
AMAZING THANK U
thank you so much!!!!!
You guys are awesome!
Very nice video thank you
nice explanation
Thank you!
nicely explained and its very useful. but that RBC has to be the biggest in the world
superb
i hope i can understand all what you explain, it's related to my subjects much. Now i need to improve my english more. :(
thank you
Gud xplntn
LEGEND!!!
the way you use the music was lit tho!
This is far easier than other tutorials.
The 3D Rectangle is a great example!
The thing you drew is rectangular prism
You're the best
Loved it, but there is a small detail that it is not correct. The respiratory membrane OR Blood Air Barrier is actually composed of: alveolar cell, fused BASAL LAMINA (not Basement Membrane) of alveolar cells and endothelial cells, endothelial cells (of capillaries).
Paragota I was also a bit confused about this. Looking at my histology textbook shows that there really isn't any connective tissue between the alveoli and the capillaris.
Instead, what is going is that epithelial cells of the alveoli make an extremely thing sheet around the inside of the alveoli, where right beneath them there's a merged basal membrane/lamina from these epithelial cells and the endothelial cells of the capillaries. This means that the distance the oxygen and carbondioxide has to move is a lot smaller then what is indicated in this video.
Give one location in the human body where partial pressures lower than the unloading tension may be reached. Give a reason for your answer. Please help
Thanks
Love the music
ok, I needed all this until 5:50 for my year 7 assignment...
What name of this draw app ?
Very beautiful man
Could you please specify which connective tissue acts as a medium for the transfer, love the vid but couldn't help but ask 😄😄
It's cuboid, the rectangular 3D thing
exchange of oxygen and carbon dioxide at the pulmonary capillary bed . Then from that to venules vein's and at last superior and inferior vena cava to right atrium I think that's a little more simpler. Just spit balling here.
vena cava is in the systemic system. I believe your referring to the pulmonary circulation system. which is right ventricle to pulmonary arteries, then pulmonary capillary bed, too the pulmonary veins back to the left atruim
i feel like im commenting this on every KAM video, but le medicine ones are by rishi, not sal
lol the music
i was shocked hahahahah
that made me LOL too !!
do oxygen molecules get dissolved in the fluid when travelling from the alveolis to the bloodstream?
How about if the person is doing exercise? Could that not be a reason for P1 and P2 to change?
I like the hair haha.
👍👍👍
its a rectangular prism...
its called a rectangular prism
Most of you are nursing students
And I'm supposed to learn this for grade 10
what cause the diffusion??
Hello, what makes the O2 gas state to liquid? or CO2 in liquid state to gas?
wan faris my man we the only two in 2020😂
How can I find an easier way to get oxygen through the membrane if mine has become harder
Jesus that went right over my head
So is this true for other types of gases/vapors like vaporized or insufflated drugs?
You could call it surfactant
so is this diffusion?
thought you were actually going to demonstrate an oxygen molecule making its way from the alveoli to end up in the blood!!! You never stated in the description you were going to animate it.
kind of a round about way of getting to the point.
which software is used for drawing?
MS paint.
Kharra Alyk
Given that co2 pressure in blood is in the same ballpark range as oxygen, I wonder why it is that athmospheric CO2 has any effect on us at all: it's only 0.04% of air. At levels that make you sick, say 0.2% or 2000ppm, the atmospheric CO2 would still barely effect the reverse CO2 gradient from blood to air. Ah right, it's because CO2 dissolves much more readily in water, water is a CO2 sink. Someone should put up the corresponding effective CO2 gradient.
It would also seem then that alveoli surfectant condition has a bigger impact on CO2 gradient than on oxygen.
In other words, CO2 will be leaving much more readily at low surface tension, and will be trapped at high surface tension.
Finally, since body only has CO2 sensors, not O2, breathlessness would seem to be from insufficient CO2 clearance predominantly (the blood has a pretty large store of O2, so insufficient breathing would first show up as too much CO2 content). Speculating here.
Do the lungs receive oxygenated blood
Aparna Singh no they receive deoxygenated blood and then carries oxygenated blood to the rest of the body
Don't really get it, does that mean all that tissue is liquid? But great explanation anyway.
Lucy L No the oxygen is moved through the tissues in the liquid phase.
+Nickcole Jackson it is about respiration in alveoli
VINODH SEEMAKURTI what does that mean. I am not in that class anymore. I made my A, now make yours. Thank you for late information.
+Nickcole Jackson Oxygen turns liquid at extremely low temperaures/extremely high pressures though. The tissue isn't really entirely liquid but considering that most if its mass is accounted for by the water in the cytosol, it's mostly made up of liquid.
Look at the hair
Now im confused... So oxygen from lungs goes directly to the capillaries then to the blood then to the rest of the body? Thought that oxygen travels from the left lung-left pulmonary artery-heart-aorta-arteries-capillaries-rest of the body?
Left pulmonary vein**
+Liza Tsoi it is implied
:)
WHY DID UR VOICE CHANGE !!! :(((((
Shouldnt the heart be towards the right..and since we are facing the person..isnt the drawing wrong(?) ...corect me if im wrong
+Theo Rajan Terence no the drawing is correct as far as I can see. :)
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Are u american or chinease
Sorry you spelled haemoglobin wrong...unless u spell it that way in whatever county you're in
+Divya Prabha Yes Hemoglobin is the english spelling.
Not good .
U just forgot to say the most Important , Gas molecules move from higher concentrations to lower concentrations ( diffusion) witch is a passive process and doesn´t requiere energy . Partial pressure of o2 in alveoli 100mmhg and in Arteries : 40 mmHg
Give one location in the human body where partial pressures lower than the unloading tension may be reached. Give a reason for your answer. Please help
terrible video cmon guys you can do better
i dont understand i am unsubscribing if you need to make it exciting