Red blood cells
Oxygen uptake by hemoglobin in red blood cells
More free lessons at: http://www.khanacademy.org/video?v=fLKOBQ6cZHA
source
Oxygen uptake by hemoglobin in red blood cells
More free lessons at: http://www.khanacademy.org/video?v=fLKOBQ6cZHA
source
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your amazing! why did I now find you????
reallly apppreciate the hard work..keeep it up khans aca…??????????
What would we do without you! Thank you so much for all your terrific videos 🙂 🙂 🙂
doesn't really answer what happened to nitrogen. Does it diffuse into the capillaries and enter the circulation or there is a mechanism to filter nitrogen gas out before blood returned to the heart?
This is confusing but helpful
So it's plasma that gets to carry carbon dioxide to the heart and not rbcs?….what about allosteric inhibition? Where you mentioned co2 binding to hemoglobin
I WANNA WACH ALL YOUR VIDIOS HEHEHE
Veins are not blue because of the low amounts of oxygen! http://scienceblogs.com/scientificactivist/2008/04/17/why-are-veins-blue/
Hi there. I am a teacher. What program do you use to film these videos? Thank you Connie
Thanks educational.
why is oxygen uptake for hemoglobin ~98% and not 100%?
i knew that (no i didnt so thx dude)
Good video but you lost me at favorable evolutionary trait.IMO there's no way that all that happened by chance.
Wow. Very good film. My bro was formerly obese. He revolutionized himself from 284 lbs of pure fat into 206lbs of total lean muscle mass. We thought it was outstanding! I just registered myself as I'm working to get more impressive muscles. He made use of the Muscle Building Bible (Look in Google)…
You are indeed wrong about sight. When light comes down every wavelength of light but that of what you see is absorbed. The light, this time from red blood cells, is red so thats is what is reflected and seen by you.
around 12:53 he is saying that because the light of the wavelength of red light is being reflected by oxygenated hemoglobin we perceivably see the RBCs reddish
This contradicts with what I believe to know:
If we see the color red, it's not because red is being reflected, but absorbed and all the other wavelengths of the spectrum of the visible light are being reflected; our brain receives the signal that 'red' is missing and interprets us the color as being red; please correct me if Im wrong
pretty sure i have learned that the vein is actually blue and the blood does not give it that color. deoxygenated blood is dark maroon and the material of the vein is blue.
You should do a video on the chloride shift… That would be extremely helpful! 🙂
@reddogpremier He meant like the shape of cough drops. That's what they're called! Lozenages or something like that haha. Just look up what Ricola is shaped like, or Halls Cough Drops.
sir i want to ask does all of the nitrogen goes back in to the atmosphere because our veins have nitrous oxide
What is a "lausage" that you said the red blood cell was shaped like?
Thanks !! XD
I read that nitrogen doesn't get into the blood because at normal pressure it doesn't dissolve into water. That's a reason why we can't stay to long under high pressure, because are blood gets intoxicated with nitrogen.
To be honest the video's head title was about red blood cells and you only talked 4 minuts about it out of the 16 minuts 🙂
The epiglottis
you are so awesome.
what is the flap the block the food from entering the larynx and stay in the esophagus?
love this guy
He's voice just draws me in even more, especially when he gets excited about something. Lol. I need a life.
I LOVE YOU!!!!!!!!!!!! Im a nursing student and trying to figure everything out…..TY TY TY
Kind sir, thank you so much for your videos. I was about to smash by laptop and burn my textbooks and check myself into the crazy house and then i found your videos! You make science fun too learn and easy to understand. Your like a modern Bill Nye.
bane
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