Platelets & Blood Clotting | Biology | FuseSchool
Do you remember tripping over as a kid and cutting your knee? And then like magic the bleeding suddenly stops? Have you ever wondered why this happens?
Our body is very clever and produces substances to seal off the open wound.
In this video we are going to look at how and why blood clots.
Clotting prevents us from bleeding to death, and also protects us from nasty disease-causing organisms, called pathogens, entering our body.
When we injure ourselves, we can damage the blood vessels just below our skin. This can cause blood to either leak into our tissue and form a bruise, or, if the skin is broken to openly bleed.
To prevent these horrible things happening, blood clotting occurs.
So let’s have a look at how this happens.
Starting with platelets. These are tiny cell fragments that float around in our blood.
When a blood vessel is damaged, collagen is exposed. This collagen exposure attracts platelets to the injured area. The platelets then stick together to form a plug.
They’ve quickly built a little barrier that stops us from losing too much blood. However, this platelet plug isn’t that strong. So it needs to be made stronger.
A protein called fibrin does exactly that.
In our blood there are soluble fibrinogen proteins. At a wound, these soluble fibrinogen proteins are exposed to outside chemicals that aren’t normally found in blood vessels. Like with the collagen and platelets, this exposure causes the fibrinogen proteins to turn into sticky fibrin fibres.
The fibrin fibres form a mesh, holding all the platelets together and making a much stronger clot.
More platelets, red blood cells and other components in our blood, all get stuck in the mesh making it even stronger. This clot stops more blood escaping the body. And also prevents nasty pathogens entering our body from the outside.
The clot develops into a scab, which protects the wound as it heals and new layers of skin form underneath. So really, all a scab is is just platelets trapped in the fibrin mesh!
When the new skin is fully formed, the scab will fall off, revealing the lovely brand new skin underneath.
Remember that I said the exposure to collagen causes the platelets to stick together? And the exposure to outside chemicals causes the fibrinogen to turn into sticky fibrin?
Both the platelets and the fibrin only become sticky AFTER the exposure. This means that in a normal, healthy blood vessel they won’t randomly cause clots.
So from this video, you should understand the magic of blood clotting. Platelets are first to the scene closely followed by fibrin fibres. Our blood clots so that we don’t lose a lot of blood and don’t let lots of nasty pathogens into our body if we cut ourselves.
SUBSCRIBE to the FuseSchool KZread channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here:
• Complete & Incomplete ...
Find all of our Biology videos here:
• The Lymphatic System |...
Find all of our Maths videos here:
• Video
Twitter: / fuseschool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: / fuseschool
Friend us: / fuseschool
This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: creativecommons.org/licenses/b... ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org
Пікірлер: 196
Thanks. Just showed this to my 6 year old daughter after getting a cut in her hand. Now she's looking at the cut and saying, "You're doing a great job platelets!" ☺️
@fuseschool
3 жыл бұрын
Aww 🥰 So glad to hear that!
FINALLY a video from this channel that has actual audible pronunciation OMG
Finally a video about blood clotting I can finally understand.
@fuseschool
4 жыл бұрын
Glad it was helpful!
A simple explanation, just what I needed.
You elaborate it in a very simple way!! Thank you
@fuseschool
3 жыл бұрын
Thank you too! Glad you liked it!
Can u make a detailed video on blood clotting where the function of thrombokinase, prothrombin , fribrinogen and fibrin are given properly
@janenduati7581
3 жыл бұрын
Exactly
@akshayar4444
2 жыл бұрын
Yes that's what i'm searchin for
Were is thrombin and prothrombin😶
This is exactly what I was looking for. Thank you so much !!!!
@fuseschool
4 жыл бұрын
Thank you!
That's what I was exactly looking for! Many thanks.
@fuseschool
3 жыл бұрын
Excellent! Glad we could help!
I wanna ask. How betadine help platelets? Or any medicine that we take when we are wounded. Thank you in advance
When there’s an open wound, platelets will release chemicals that cause a soluble fibrinogen protein to convert into a insoluble fibrin and insoluble mesh. This will allow the blood cells to trap and therefore forming a clot. When the clot dries, it will form a scab that prevents bacteria from entering the wound .
@ahmedyasir8454
4 жыл бұрын
1234
Wow now I understand this in only 3 MINUTES!?!?!? This is insane and may be really helpful
@fuseschool
4 жыл бұрын
Glad you think so!
You explain simply and easy thank you so much ☺️
@fuseschool
3 жыл бұрын
Thank you! So nice of you 😊
Thank you, explained in a very simple way and straight to the point.
@fuseschool
3 жыл бұрын
Thank you too! Glad you liked it!
Excellent video!!!!
You have help me revise for my test thank you so much 😊
@fuseschool
3 жыл бұрын
So glad! Always happy to help!
Good information.. Easy to understand
Thanks for this informational ❤️❤️
What is the difference between hemostasis, blood clotting and coagulation? All 3 processes are quite similar which makes it confusing to understand
What a fantastic mechanism our body has it surprises me everyday God has created us so finely 🙏
Thanx for explaining this way
@fuseschool
4 жыл бұрын
Glad you liked it!
Is the same thing done after mass surgery for triple by pass.
this really helps thanks
@fuseschool
4 жыл бұрын
Glad it does!
thank you so much for sharing thiss...its very helpfull..
@fuseschool
3 жыл бұрын
You're welcome! Glad it was helpful!
Are there collagen fibres in blood capillaries too?
Excellent explanation 👌 thank you
@fuseschool
3 жыл бұрын
Most welcome! Glad you liked it!
So simple and detailed I love it.
@fuseschool
4 жыл бұрын
Glad you think so!
Thanks for the fascinating video
@fuseschool
4 жыл бұрын
Thanks for watching :)
Thank you xora for sharing 😍😍😍
@fuseschool
3 жыл бұрын
Our pleasure 😊
Thanks. Your video it help he to know some of blood
Thank you very much.
@fuseschool
4 жыл бұрын
No problem!
wonderful thanks
@fuseschool
4 жыл бұрын
Thank you!
Really you are a very good teacher
@fuseschool
3 жыл бұрын
Thank you! 😃
Wow... Nice explaning. 😀👍👌
@fuseschool
4 жыл бұрын
Thanks!
Thank you so much sir
@fuseschool
3 жыл бұрын
Most welcome!
Thanks it was helpful. Give more educational videos
@fuseschool
3 жыл бұрын
Glad it was helpful 😉
Thank you
@fuseschool
4 жыл бұрын
Any time!
Thank you:) 💚💚🕊
@fuseschool
3 жыл бұрын
You are welcome 💜
Thank you from a #TTP (Thrombotic thrombocytopenic purpura) patient.
AMAZING VIDEO
@fuseschool
4 жыл бұрын
THANKS!
Well done!
@fuseschool
4 жыл бұрын
Thanks!
so having a high platelet count is a good thing?
How does fibrin get activated
AmazING videos
@fuseschool
2 жыл бұрын
Thank you!
Nice video i love it
If you blood platelets are low what medicine can help you reach your levels of platelets
2nd comment thanx for the video👌 Please make a video on Blood plasma and serum.
@fuseschool
4 жыл бұрын
Noted! Thanks!
Si helpful thank youu
@fuseschool
4 жыл бұрын
Glad it was helpful!
Can i get a heart for my fav teaching channel ❤❤❤❤
Ok so how can you explain this in relation to the Covid-19 vaccines?
Compare that to Cells at Work. In the anime, the platelets make a net to stick the red blood cells on it, which is correct. The platelets themselves just stay inside the body and let the red blood cells die. They did not fuse with the reds.
Really helpful👏👏
@fuseschool
4 жыл бұрын
Glad it was!
wow it is cool very cool
Thhhankss!!
@fuseschool
3 жыл бұрын
No worries!
Tiny cells in the blood called platelets stick together around the wound to patch the leak. Blood proteins and platelets come together and form what is known as a fibrin clot. The clot acts like a mesh to stop the bleeding. ... Each factor activates the next until they form a clot.
Hey! Great video but I have a question. What is collagen? Is it a layer of skin? Or it it air around the body? 😅 Is it just floating on our skin or is it underneath a layer??
@fuseschool
3 жыл бұрын
This might help: www.medicalnewstoday.com/articles/262881
@yunaelia
3 жыл бұрын
@@fuseschool Thank you very much!!!
Very nice thankyou
@fuseschool
3 жыл бұрын
Most welcome 😊
It is very good
Anone Anone
keep going.good.
@fuseschool
4 жыл бұрын
Will do!
thank you I am using your videos for my teaching during covid 19 situation - which is non commercial purpose
@fuseschool
3 жыл бұрын
Wonderful! Glad they are being useful 🙂
After watching CAW all i can think of when i hear platelet is just cute kids.
Every biology video that I've watched infuse school gives me an incomplete information about different stuffs. The biology related videos are not as much as fruitful as chemistry and maths . Hopefully in future we'll get good biology related video
Good ass video keep it up
Thank you for the amazing animation
@fuseschool
4 жыл бұрын
Thanks for watching!
The funny thing is they advistise how to slim down to a skinny person..... 😊Good explanation on platelets and blood clot.
@fuseschool
3 жыл бұрын
Thanks! Glad you liked it!
Who else had their teacher show this at class.?
Good video and easy to understand From IQ
@fuseschool
3 жыл бұрын
Thank you! Glad you like it!
good video
@fuseschool
3 жыл бұрын
Thanks!
I have had the disease itp low platelets for years. it affects my whole life. now also in hospital on IV. what a rare rotten disease it is. And the drugs also have their serious side effects. I hope it's just curable
@doriskuen2874
2 жыл бұрын
I’m having the same problem. Had Rituxan infusions, didn’t get platelets up. Now doc wants to start Promacta. I’m frustrated they can’t find the cause. Don’t want another drug. What is out there to cure it.
Nice!
@fuseschool
3 жыл бұрын
Thanks!
@joaocarrilferreira4590
3 жыл бұрын
@@fuseschool
You are amazing!! Thank you.
@fuseschool
4 жыл бұрын
Aww thanks!
Due to the effect of Haemophilia causing blood not to clot what could be affected
I am trying to understand it but i couldn't after seeing this video it become clear
@fuseschool
3 жыл бұрын
Wonderful 😃
@youtuber5412
3 жыл бұрын
Sir I need your blessing for my exam
what are the blood vessels
Subahanallah
Thank you so much for this video
@fuseschool
4 жыл бұрын
Thanks for watching!
helped me visualise easier. thank you
@fuseschool
4 жыл бұрын
Glad it helped!
Thank youu
@fuseschool
3 жыл бұрын
No problem!
Good 👍
@fuseschool
4 жыл бұрын
Very good!
If your body Is making too many palates what can you eat
What is the role of vitamin K in case of blood clotting
@fuseschool
3 жыл бұрын
Vitamin K helps convert certain blood clotting factors that are involved in formation of the clot. Check this article out: www.newscientist.com/article/mg13217963-100-science-how-vitamin-k-makes-blood-clot/
How to cure im easy bleeding
nice vedio
@fuseschool
4 жыл бұрын
Thanks!
you know what I recommend cells at work to you :3 *watch the anime or the germs will get you*
Does anyone feel afraid of the red blood cells and the white blood cells and the platelets?
You: you remove the scab Platelet: ah shit here we go again
Please allow to see private video it is very useful
Zambian
Are platelets same as lipids?
@fuseschool
3 жыл бұрын
Hi there! Platelets are not the same as lipids. They are composed of different lipids, e.g. phospholipids, sterols, sphingolipids, free fatty acyls and glycerolipids.
Why we can not see private videos
@fuseschool
4 жыл бұрын
We might need to fix a few things in those videos before we make them public again. Bear with us!
@rajjaiswal62
4 жыл бұрын
Ok I understand but when we see private videos
this man did not just say magically twice in a scientific video
@maryamalmafraji9189
3 жыл бұрын
the video was quite helpful though
@fuseschool
3 жыл бұрын
Glad ti was helpful!
Fibrin clot ???
u good
@fuseschool
3 жыл бұрын
Thanks 😉
0:49 whats eed
@fuseschool
3 жыл бұрын
You probably meant "bleed". The narrator says: "When we injure ourselves, we can damage the blood vessels just below our skin. This can cause blood to either leak into our tissue and form a bruise, or if the skin is broken to openly bleed."
@omerhijazi498
3 жыл бұрын
@@fuseschool I meant that theres some error in the video, a random noise (eed) comes
@fuseschool
3 жыл бұрын
Oh, ok. Thanks for pointing it out.
@omerhijazi498
3 жыл бұрын
@@fuseschool Welcome :)
My teacher sent me
Thanks I had an exam
@fuseschool
3 жыл бұрын
Hope it went well!
Help!!!!! Calculate the number of grams of substance needed to make each of the following solutions 1. 100cm3 of KOH concentration 0.5mol/dm3 NEED HELP IMMEDIATELY!!!!
@struggling_college_student
4 жыл бұрын
oop-
@pr3ppr396
3 жыл бұрын
@@struggling_college_student bit late
who needs to read about blood cells and stuff when u can watch "cells at work"--
@LuigiTheMetal64
3 жыл бұрын
That show is not accurate. In the show, the platelets never stick with the red blood cells as the platelets just stay in the body. The red blood cells are seen carrying food baskets to represent nutrients, when in reality, red blood cells only carry CO2 and oxygen whereas the plasma is what carries the vitamins and minerals.
luv it
@fuseschool
4 жыл бұрын
Amazing!