Human Defence Systems Against Pathogens | Health | Biology | FuseSchool
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- Опубликовано: 14 окт 2024
- Human Defence Systems Against Pathogens | Health | Biology | FuseSchool
Pathogens are disease causing microorganisms, that our body has many defence mechanisms against.
The skin is the first physical barrier, providing a protective layer that is hard to penetrate. We also have sebaceous glands that secrete acids, thus preventing the growth of pathogens.
Pathogens can enter through our mouth, nose and eyes quite easily. Saliva, mucus and tears contain lysozyme enzymes that break down the cell wall of many bacteria.
Our respiratory system then has it's own defences from nasal hair to mucus to enzymes.
Hydrochloric acid inside our stomach kills many harmful microorganisms that enter in our food and drink.
Our blood also has a great defence system; blood contains platelets and fibrin which causes blood to clot and scabs to form, sealing off cuts from the outside. Our blood also has another fantastic weapon; white blood cells. These can hunt down and destroy pathogens, they can ingest them, and they can neutralise the effect of the pathogen toxins on the body.
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2020 quarantine
ayyy thought i was the only one watching 5 year old videos
Yupppppp
yep
2021 UK quarantine
Now 2021 quarantine 😭😭
anyone else have to watch this for online school?
Samantha Rubinstein yep
Yep
Ye
yes
@Oliver Merrill Silly boy
Homework gang
ayyyyyyyee
Yeaaa
Here
Got this as school work 🤷♂️
Yupppp
Biology student's need this!!!
Syafika Fika 9,&hbj
it says there on the title
Ayyy bro teacher set this work gang
Exactly the video I was looking for. Thanks!
How old are you?
Hey!! I really love your channel because I work as a Science teacher and your videos are awesome resources to complete my explanation thanks a lot!
Thank you! Appreciate it!
thanks a lot, I couldn’t of done it without you
by the way I’m watching this because online class made me watch this 😐
Glad we could help!
🙂🙂🙂
2:24 ah yes, our three musketeers
🤣
The music is far too loud, very distracting. I am debating whether to recommend this video for my students to watch.
my teacher told us to watch it i mean...
you can just turn it down
just on subtitles
by the way I’m watching this cause of online class
I mean- Harvard students have probally whatched this-
Interesting videos
online school gang:
Lmao me
Pathogens include bacteria, virus and so on... so those the defence systems defend all those in the same way? I’m just curious
This might help: microbiologysociety.org/why-microbiology-matters/what-is-microbiology/microbes-and-the-human-body/immune-system.html
love the elavator music
Thank you this helped very much 😁
Awesome! Glad it helped!
Great video!
Good presentation, thanks👏
Glad you liked it!
Healthy skin microbiome - which pathogens can kill
Please answer me sir
lockdown checkkkkkk
Great video, very relevant for 2020 💚🙏🏼
Thanks! Glad you think so!
came here from online skl
everyone
Same
Yo wassup tudor
AND WE STILL GET SICK..
why lysozyme enzymes Can not kill all microorganismes ?
Why is all the audio on the left?
I had to use mono audio to even watch this
doing 8th grade hw rn, failing ✌️
You've got this 🙌
*team fungi was here*
Hello people from my class!
online school checkkkk pewpewpewwwwww 🚁
hey guys
What accent does the guy have?
South African 🙂
SCIENCE
She I told ya I was going on the road and she said that I cannot is the way I am
@Aishath Suma huh?
??? whaaaah ???
yes
i understand what you said man
Neek
whos here for online school
boring
So ur here cause of online school?
POV your here because of online school
.
Me
ye bro
pathogens pathogens pathogens pathogens
this is so boring online school
Who else watched this from iskandhar school?