Where do our nails and hair come from? | Integumentary system physiology | NCLEX-RN | Khan Academy

[@stewartsmall5316]

Once you understand the similarities with Keratin and the role it plays in both skin and nails you can grasp some more important concepts to do with these structures.

[@mochi844]

Like what? :D
Like horns? Some horns are made of keratin IIRC...

[@E_Harekrishna]

@@mochi844 😂😂😂

[@justthefacts8872]

Pppp]

[@oopalonga]

pretty sure in ur other video you said the arrector pili muslce lied in the reticular portion of the dermis and not that papillary, just FYI. thanks for the vids homie, well done : )

[@SrastiShrivastava]

So.. arrector muscle actually lies in papillary dermis and not on testicular dermis..? Right

[@brennonmitchell7753]

Srasti Shrivastava you mean the reticular dermis? Testicular would be referring to the pubic region.

[@SrastiShrivastava]

@@brennonmitchell7753 hehehe.. oh my God I didn't see that..
yes I actually meant reticular dermis..

[@Joeythegoats]

@@SrastiShrivastava thank you for discovering one more layer LOL

[@midnightcat6116]

Oh so is it the papillary or the reticular that’s the arrector pilli muscle is located?

[@zainabzezo9217]

Great !!

[@alyssatjarks9087]

Sorry to tell y’all this but hair DOES grow from the dermis, the follicle is down there.

[@feetlessdance]

Hi . Thanks for all the videos.
Isn't nail originates from nail matrix located between dermis and epidermis?

[@maryamrahmannia4812]

Great job

[@minabish1783]

How would the air be trapped, and why is it warmer? Iam confused, the hair is standing on end, so it can't be entangled right? So how does it trap air?

[@meenadevi1323]

good

[@maryamrahmannia4812]

Thanks alot

[@dansters9312]

Ok ok

[@Blackdiamond929_]

So this is why MSM works ☺️

[@theextremeofflight]

hurr durr erector pili equals vestigial structure, see! evidence we used to be monkeys!

[@Radikula16]

Şunun türkcesi nerde aq ya

[@Atrieo]

bruh this video shows me nothing.