Lecture 1 – Chapter 1 (Elements of the Immune System and their
Roles in defense) & Chapter 2 (Innate Immunity: the Immediate
Response to Infection)
− immune system – a diffuse, complex network of interacting cells, cell products, and cell-
forming tissues
− protects the body: from pathogens and other foreign substances, destroys infected
and malignant cells, removes cellular debris
− needs to discriminate between self and non-self and harmless versus harmful
− there is a delicate balance in immune activation (inflammation) and inhibition (tolerance)
− a disbalance in immunity can cause (severe) disease
− before we can use our immune system for treatment, we need to know what the right
balance is, how it’s achieved, and what exactly causes disbalance
− the greatest triumph of immunology vaccine, a procedure that prevents severe disease by
exposing healthy humans to the infectious agent in a form that does not cause disease
− provides human immune systems with the experience they need to make a strong
response (one with little risk to health and life)
− first used against smallpox
,Elements of the Immune System and Their Roles in Defense
− in our blood we can find multiple immunological components
− these cells and molecules are subdivided in two main immunological categories: innate
versus adaptive immunity
,
, − hematopoiesis – the development of immune cells with two important common precursors
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 summaryqueenvu. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.87. You're not tied to anything after your purchase.