metaplasia

072 The Four Types Of Cellular Adaptations

Leslie Samuel IBTV, Pathology 70 Comments

As cells get exposed to an injurious agent, these cells then try to adapt such that an injury would be prevented.

Watch and learn what these adaptations are in this video. More to come on the details of each.

Enjoy!

Transcript of Today’s Episode

Hello and welcome to another episode of Interactive Biology TV where we’re making Biology fun. My name is Leslie Samuel, and in this episode, I’m going to be talking about the four types of cellular adaptations.

Two videos ago, I answered the question, “What is a disease?” And, in the last episode, what I spoke about were the “Five Causes of Disease.” The first cause, the number one cause of disease was adaptation, and what I said was that an adaptation is a cellular reaction to prevent injury. So, there’s an injurious agent in the environment of the cell, and the cell reacts in a way to prevent injury.

You can go back and check out those videos, but in this video, what I want to talk about is the first cause of disease which is an adaptation. So, what we’re going to do is we’re going to talk about the four types of adaptations.

Adaptation number one is atrophy. Atrophy is when the cell decreases its functional part. The cell is basically reducing its size by decreasing its functional parts. That’s number one.

Number two is hypertrophy. That is when the individual cells increase in size, and that of course, is going to cause the tissue to increase in size.

Then, there’s hyperplasia. Hyperplasia is when we have more cells being formed. So, the cells are replicating, and as a result of that, the tissue is increasing in size.

With hypertrophy, we have the tissue increasing in size because the individual cells are increasing in size. In hyperplasia, we have the tissue increasing in size because we’re getting more cells, which make sense.

Then, the last type of adaptation will be metaplasia. And, that is when we have one tissue type that’s replaced by another tissue type. So, these are the four types of adaptations.

I’m going to go into more detail about those adaptations in later videos, but for this video, all I want you to be able to do is remember those four adaptations.

      1.  Atrophy.
      2. Hypertrophy.
      3. Hyperplasia.
      4. Metaplasia.

And, you can say it with me. Let’s say it together.

Number one is atrophy, hypertrophy, hyperplasia, and metaplasia. We can kind of say it together. We can almost dance to it. it’s that simple. So, atrophy, hypertrophy, hyperplasia, and metaplasia.

In the next video, we’re going to go into detail about atrophy, and we’re going to continue from there.

That’s it for this video.

If you want more videos like this, and more resources to help make Biology fun, I invite you to visit the website at Interactive-Biology.com.

That’s it for this video, and I’ll see you in the next one.

68 comments
Raechelle Gretencord
Raechelle Gretencord

Your work is soo awesome!! You are truly helping me through every Nursing class I am taking! Thank you!

linda swartzen
linda swartzen

very interesting...do you have a web sight? Can Adaption begin due to emotional injury?

HaydenICM
HaydenICM

Leslie, Have you seen "The Beautiful Truth" documentary? Maybe you should show it to your class. Your love for teaching really comes through in the videos. Can I take you class and get a book and follow along with you?

ziyad saleem
ziyad saleem

please Dr, Where are the videos of the break down of each 4 types of adaption - Atrophy, Hypertrophy, Hyperplasia, and Metaplasia?

mrsramos777
mrsramos777

Where are the videos of the break down of each 4 types of adaption - Atrophy, Hypertrophy, Hyperplasia, and Metaplasia?

hg4hood
hg4hood

You helped me pass final year Biology, and now I'm studying Neuro Physiotherapy dergree at University. Still watching your videos to refresh the basics.

jackatar4
jackatar4

Just finished the first 72 ... where are the other 104-72? Love your teaching!!!

daidaiiroki
daidaiiroki

I just watched every video you've made. Thank you. It was more fun than reading rainbow. I love the new video logo. I also can't wait for more videos in this format.

daidaiiroki
daidaiiroki

books are tough, try get body smart .com

daidaiiroki
daidaiiroki

I just watched every video you've made. Thank you. It was more fun than reading rainbow. I love the new video logo. I also can't wait for more videos in this format.

daidaiiroki
daidaiiroki

books are tough, try get body smart .com

kcee15
kcee15

yayy! i finally get to see ur face! :)) ive been watching ur videos religiously because it helps me out so much its pretty much my lecture notes thank you for all your videos! theyre amazing and i must say youre much younger and cuter than i thought! thanks again! keep it up!

kcee15
kcee15

yayy! i finally get to see ur face! :)) ive been watching ur videos religiously because it helps me out so much its pretty much my lecture notes thank you for all your videos! theyre amazing and i must say youre much younger and cuter than i thought! thanks again! keep it up!

therorysnake
therorysnake

Well this is the first video I've seen of yours and suffice to say I think I love you. Haha, I just love this style of teaching; tiny segments, explained very simply, high quality visuals and a constant visual representation of the material being learned. I'm very impressed.

therorysnake
therorysnake

Well this is the first video I've seen of yours and suffice to say I think I love you. Haha, I just love this style of teaching; tiny segments, explained very simply, high quality visuals and a constant visual representation of the material being learned. I'm very impressed.

Muhammad Zarar
Muhammad Zarar

Sir how can i get access to your videos.. I want to download your whole collection of videos. Can you help me in this regard. If please mail me. I am a third year mbbs student . Want the videos of pathology. Thanks

khadga thapa
khadga thapa

Hi Leslie your videos are really useful and informatives. i enjoyed watching them and even i pass your website to my colleges. I want to build good network with and and wants to graps the learning opportunity. Do you have your personal email id? so that i can strengthen our relationship. cheers khadga thapa

HieroHere
HieroHere

is there a video on DNA replication?

HieroHere
HieroHere

is there a video on DNA replication?

Tansey Louis
Tansey Louis

hi Leslie, your content is very detailed and interesting. I do not hesitate to forward your website to my readers. They can really benefit from all this good value you give. By the way, I like your new site look.

Brian Wallace
Brian Wallace

Wow! Your site is amazing! Your videos are great and I am looking forward to going through more of the site.

Gia
Gia

Hi Leslie, Thank you for doing these videos. I was lost in A&P trying to understand the Action Potential and decided to search Youtube and just pumped into your videos. It makes so much more sense to me now. Do you have any video on Graded Potential, or the Skeleton system? Thanks again and keep up the good work.

khawaja224
khawaja224

i really wish that u would make videos about structural anatomy of head and neck ??? its really aweful to study from books =(

khawaja224
khawaja224

i really wish that u would make videos about structural anatomy of head and neck ??? its really aweful to study from books =(

AzzAsem
AzzAsem

thank u so much can you make some videos about the urinary system + Immune, Blood And Lymphatic system :)

AzzAsem
AzzAsem

thank u so much can you make some videos about the urinary system + Immune, Blood And Lymphatic system :)

VIVIANA
VIVIANA

LOVE IT, IT IS SOO MUCH EASY N FUN WHEN SOMEONE LIKE YOU THAT LOVE TO TEACH MAKE IT SO INTERESTING. THANKS SOOOO MUCH. BLESS MY FRIEND.

Tanushree
Tanushree

Hey Leslie! I do wish to suggest that your older ways of presenting were better, in the sense that you had a proper diagrams and pictures to explain your topic. This format seems to be missing that. If you do wish to keep this format of doing things, I would highly recommend combining both your formats as the older ones do have an edge in some ways. Also I think, the way you would write on your videos and point out the appropriate parts while explaining, was rather powerful. Visual impressions are immense and are a great influence in remembering things. Hope you find my suggestions useful. By the way, this is my first time ever writing online ever. I genuinely love your work and think you are doing a great job. There is so much I have learnt from your videos. Cheers!

Tanushree
Tanushree

Hey Leslie! I think your video was excellent! The way you present things is very original and the fact that it is *you* presenting them, makes it special. Some videos are pure animations and I think because you make use of both presentation and animation, your videos are more fun to watch. I had always wondered about these terms, but never got around to remembering them as easily as you made it. Some animation to explain each of the adaptations would have been more powerful. Keep up the good work. There is so much to learn and I truly enjoy your videos. Cheers

MESTO
MESTO

I hope you make some videos about PHARMACOLOGY

MESTO
MESTO

Thank you so much . I really love your job , and I will be more thankful if I watch the next one as soon as possible because I really need these videos .

paula tomlinson
paula tomlinson

Hi Leslie, Your videos are helping me a lot they are a lot easier to understand and i love the way you present them i can tell you love your job. So thank you for sharing your knowledge with all of us it is much appreciated. Cheers Pauline

Haidar
Haidar

amazing video man i never saw something like that before .. easy and simple one thank you so much waiting of the new video .. cheers

S.Giri kumar
S.Giri kumar

Dear Leslie Your video was fantastic. There is nothing to comment. Your presentation skills are really good. Thank You.

Ceci
Ceci

I like it, over all the slides or pictures you have on this one. I don't think is necessary the repetition. Your style is direct and simply that's why I wacth your videos. Thanks again!

Leslie Samuel
Leslie Samuel

Hi Muhammed. You can access my downloadable videos by signing up to my list (the popup that comes up). However, I don't have the pathology videos available for download as yet.

Leslie Samuel
Leslie Samuel

Glad to hear the videos are helping you. I don't share my email for personal networking though. Otherwise I'd be flooded with too many emails. Best way to communicate with me is via this site.

Leslie Samuel
Leslie Samuel

Hi Tanushree, Great point. I do plan on using that format in the future. However, for this video, I wasn't really going into any mechanisms. It was more of an introductory video to introduce the topics of the types of cellular adaptations. As I get into more detailed mechanisms, the videos will also have to be more detailed. But thank you so much for your feedback. It's great to hear other people's input. It really helps!

Leslie Samuel
Leslie Samuel

I don't think I'll be covering pharmacology anytime soon. Maybe later on.

Leslie Samuel
Leslie Samuel

Thanks for the feedback Mesto. Glad you are enjoying the videos.

Leslie Samuel
Leslie Samuel

You are very much welcome Paula. So glad that you are finding value in the videos. Stay tuned for more :)

Leslie Samuel
Leslie Samuel

Thank you S.Giri, stay tuned for many more :)

Leslie Samuel
Leslie Samuel

Thanks for the feedback Ceci. This video was definitely a very simple introduction to the concept of cellular adaptations. Will be getting more detailed in the near future.