What is skin? (Epidermis) | Integumentary system physiology | NCLEX-RN

What is skin? (Epidermis) | Integumentary system physiology | NCLEX-RN | Khan Academy

Рет қаралды 434,633

10 жыл бұрын

Created by Raja Narayan.
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Пікірлер: 68

@christinabeahan8596 5 жыл бұрын

Great video! I may have missed it but I think it would be good to point out that the Stratum lucidum only appears in the thick skin (palms of hands and bottoms of feet) and not on the thin skin (everywhere else). It is to make our hands and feet tougher by providing an additional layer of protection. Imagine holding a really warm cup of coffee in your hands... it's kind of relaxing. But touch that same warm cup of coffee to your neck and we've got a whole different situation.

@68sagandeepkaur13 3 жыл бұрын

Thanks for this information 😊

@alisaad679 23 күн бұрын

The lucidum doesn’t actually make the skin “thicker”

@bws7532 7 жыл бұрын

A nice way to remember the layers: Come Lets Get Sun Burn

@PavanMehat12 6 жыл бұрын

Nice! One I like because I am Canadian is: Canadians Love Great Sushi Boxes Go Canada!

@bgreen643 6 жыл бұрын

Or another one..Comelets get some beer

@susanbunny123 5 жыл бұрын

That's how I learned them as well

@kamalrisal6581 4 жыл бұрын

Chinese love guarantee sab bekar

@raphaeldavordzie6393 4 жыл бұрын

From deep to superficial Buy Some Great Liquid Cream

@mckennatechtow5039 7 жыл бұрын

I really like how you seperated the layers and illustrated terms within the layer.

@DisKeda 3 жыл бұрын

You guys are amazing. I love everything about this channel: I like the way information is presented, I like the wording and the analogies, - everything. Just Awesome!

@tylersagendorf2153 8 жыл бұрын

The stratum basale is just a single layer of keratinocytes.

@chochibella 8 жыл бұрын

what an amazing teacher 😍🙆thank you.for sharing the love for skin sooooo impress and great full 😆

@Jay-mf3nt 8 жыл бұрын

You are my favourite teacher on Khan Academy! Always so concise and easy to follow! I just spent 2 hours reviewing the integumentary system earlier for my test today and damn, it's amazing how great you've visually shown all that info into one concise video :) Looking forward to more vids from you!

@craigroyce4472 5 жыл бұрын

Just wanted to say, thank you this was made very clear and was easy to understand.

@noramohammed90 4 жыл бұрын

Thanks soo much, you made everything soo easy to remember 💕

@lilyhp27 Жыл бұрын

Absolutely incredible video! Thank you so much!!

@pattycakelove 4 жыл бұрын

Great video even years later, thank you

@dav22we84 5 жыл бұрын

Found this really useful and explained well👍

@abbyvalentino6998 8 жыл бұрын

Love this! Thank you :)

@a019949050 5 жыл бұрын

The best teaching of skin.

@ketutuketu9291 8 жыл бұрын

Good job!

@stewartsmall5316 9 жыл бұрын

Excellent "crash course" for understanding the Epidermis. I think the Granulosum layer is the most Intricate of all the layers.

@udheykrishnan2228 7 жыл бұрын

thank you.

@OM-bi9wi 4 жыл бұрын

how a good explanation ! i hope i could be such good as this :(

@gamedaddy5381 4 жыл бұрын

I love the teaching fantastic

@Skin Жыл бұрын

Incredible

@redashanaah9502 10 жыл бұрын

Thank uuuu

@k0be55 10 жыл бұрын

Thanks

@1GuyFromLA 9 жыл бұрын

your videos are really great !

@esperanzabaca663 2 жыл бұрын

Thats so cool! thank you for making a very easy to understand video.

@naeemsyed7191 2 жыл бұрын

@byotch4469 2 жыл бұрын

Thank you so much🤍

@lulla7974 3 жыл бұрын

Amazing Video

@drnattygupta165 6 жыл бұрын

Stratum corneum is absent in very low birth weight infants

@334lishad 8 жыл бұрын

thanks for the video helped me alot

@edgarscirulis1129 5 жыл бұрын

How much does retinoic acid thins the top layer?

@drabciximab7075 3 жыл бұрын

How to integrate vit-D and Vit-A here in these layers ?

@Squshie00 9 жыл бұрын

So, do reptiles have a lucidum layer? or do they only have 4 layers? or does this not pertain to reptiles in the way I think it does... haha. I also thought this was very informative and a lot of fun! I did remember a song because of your intro, "Your epidermis is showing." I grew up very religious (am not anymore) but if you have ever listened to dc talk-colored people, it says all that in the beginning. I had not thought of that song in over 15 years. Anywho great slide, and now I will remember what is in the layers, Loved the zombie and coroners talk!

@hayley_amandaw5892 8 жыл бұрын

thank you so much.. your the only teacher on KZfaq that actually did this well☺

@cristinabeltranagost5399 8 жыл бұрын

the difference between the lucid and the corneum layer is the number of stacked cells then? Or I missunderstood? Thanks a lot by the way

@anke08420 8 жыл бұрын

+Cristina Beltran Agost I am struggling with the same thing! Have you found out if there are other differences between the cells by coincidence? it would be a big help!

@anke08420 8 жыл бұрын

are only the cells in the stratum spinosum attached to each other by desmosomes or are the ones in other layers, like the stratum basale also bound by desmosomes?

@pattycakelove 4 жыл бұрын

Top to bottom: Can, Larry, Go Swimming, Beside Dolphins (dermis)

@oskarwinters1873 3 жыл бұрын

when i was a child every month a layer or 2 of skin on my hands and arms would all just come off over 1-3 days like snakes skin. Was very odd then just suddenly stopped and never happened again.

@a019949050 5 жыл бұрын

Designed well for students

@CelenaMorgan 2 жыл бұрын

My professor informed us that horns are NOT made from keratin. They're bone. Antlers are made from keratin though.

@ajuafxal 9 жыл бұрын

you were confusing you should have said stratified squamous epithelium, rather than stacked simple squamous, regardless kudos to the work being done by you guys

@xZeZo95x 9 жыл бұрын

also he should've mentioned that the stratum lucidem is available only in the palms of the hands and soles of the feet

@anonymousanonymous9831 9 жыл бұрын

The very top layer is keratinised stratified squamous layer. The cells become more cubodial as you go down.

@VickiBee 10 жыл бұрын

You really need to explain the function of skin to all those people who constantly cut themselves for what seems like kicks if you ask me. I'm a paramedic. Apparently my opinion of the matter, my words about microbes being kept at bay by the barrier of skin that stops infections doesn't rate with them because the same people do this over and over and over. I must take these people to the hospital once a month. I'm really surprised they haven't actually gotten a terrible infection, but I really wouldn't play around with bacteria the way they do. I took Microbiology in Paramedic School. It was a most eye-opening experience.

@VickiBee 10 жыл бұрын

I think snakes are disgusting. My friend has a snake and I see its skin lying in strange places. She actually SAVES it's moltings, which I think is too gnarly but oh well.

@farahahad9568 7 жыл бұрын

What are merkel cells Plzzzz Plz go in a bit more detail Lot of thing are missng in ds lecture

@udheykrishnan2228 7 жыл бұрын

farah Ahad Merkel cells these are mechano receptors (sensory nerve ending of ) that transmit the fine touch sensation through the posterior colum and to sensory cortex.they also have secretory function

@Glimpse_future 5 жыл бұрын

Best best best😍

@ShivamSingh-mq3md 6 жыл бұрын

make video in hindi

@thirupathichinthala8686 5 жыл бұрын

Explained well..but ur Hindi explanation was good than dis....plzz make in hindi🙏🙏

@orionthewildhunt9173 4 жыл бұрын

HOMS lol 2:06

@Roseenmarie 3 жыл бұрын

1:33 I believe this to be incorrect as the stratum basale has a single layer of cells. Please could you show me where this information cones from so I can reference this please 😃

@Roseenmarie 3 жыл бұрын

4:15 there are also desmosomes in the basal layer and also hemidesmosomes which attach the cells to the base membrane.

@Roseenmarie 3 жыл бұрын

10:10 desquamation is the word to use instead of "Slough off"

@Roseenmarie 3 жыл бұрын

Also, the lucidum layer is clear because the keratinocytes are filled with a clear protein called eledein, not because it no longer has a nucleus or organelles. This layer is only found on the soles of the feet and palms of the hands. Its to prevent friction. Also, the nucleus and organelles do not give the skin its colour it is the melanocytes from the basale layer.

@Roseenmarie 3 жыл бұрын

@Spicy meatballs correct, but he said that the cell was clear because it had no organelles or nucleus, this is not correct.