Other
BTEC APPLIED SCIENCE: Unit 12D Defence against diseases
- Course
- Institution
This assignment is graded as Distinction. I hope you find it useful and get the criteria you've wanted. Thank you so much!!
[Show more]
2 reviews
By: elle_mae05 • 1 year ago
By: delviadominic2004 • 1 year ago
Seller
Follow
BTECAppliedScienceGuides
Reviews received
Content preview
UNIT 12 LEARNING AIMD: UNDERSTAND HOW
THE HUMAN BODY
RESPONDS TO DISEASES
AND INFECTION
MARCH 19, 2022
Elieah Lane
Reyes
, Understand how the human body responds to
diseases and infections.
There are 2 types of Human Defence system which are
Non-specific and Specific immune system.
Non-specific immune response protects us from all the
possible types of pathogens such as virus, fungi,
protozoa, parasite and bacterial. It attacks the pathogen
without considering what specific antigen that are found
on those pathogens.
Non-specific immune system has 3 categories
1. Physical barriers
2. Chemical barriers
3. Phagocytosis
Physical and Chemical barriers are first line of
defence against harmful pathogens
The outer layer of our skin acts as skin barrier (physical
barrier) that protect/defend our body against harmful
pathogens. The pathogens that stick on our surface of
skin, will be killed by the process of desiccation or drying
out on the skin. Peeling of skin may be disadvantage to
people but because of this it's removed the pathogen
attached on your skin.
If there’s a break of the skin such as wounds or cut, it’ll
heal itself. This occurs by the blood will start to clot and
stops the bleeding, once, the clot gets dried it form a
scab in which your immune system will begin to protect
the any cut or wound from the infection. There’s an oleic
acid made by our body containing acidic pH that making
the pathogens difficult to live on the skin.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BTECAppliedScienceGuides. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.90. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now