This document outlines the role of the specific immune response, the different types of cell types that B cells and T cells can differentiate into and their roles , what cell signalling is, the roles of interferons and interleukins in cell signalling. It also provides step by step processes of humo...
The Specific Immune Response Lymphocytes
a defense reactionthat blood cell found in the blood and lymph nodes.
·
A typeofwhite
recognises an antigen ·recognise antigens on the pathogens, and
surface of
and produces antibodies co-ordinate the immune
response againstthe
pathogen-
specificagainst that ·collectively, lymphocytes can
recog nise millions
due bo the
andigen ofdifferent antigens, large variation
Of cymphocytes.
Antigens
Lymphocyte Cell types they differentiate into and roles
haveproteins
called antigensthe
Aces
·
B Cells Enebicononsing anareasan
e
·our immune system is designed to
recognise the difference blower
formed in specific antibodies.
bone
selfand non-sebantigens on pathogens. Develop into is memory cells
Anbigens trigger the immune
marrow which remain in the
response body for years - get as immunologicalmemory
·
an
+mature
co-ordinated by lymphocytes.
·
Antugens are specific to their inecper cells:
T Cells
receasecytokineswhich stimulatebe
pathogen andare usually glycoproteins. so develop the
·
Formed
in bone
I killer cells (cytotoxic cells)
marrow
attack and kill infected host-body cells which
The two responses but display the foreign antigen. Perforin: causes
mature in cells to burst
·
The cell-mediated response
the -memory cells immunological memory.
involveshighly specialised cells that
-
-
chymus
target pathogens inside cens -- system.
· The humoral response targets
Tregulabor cells shut down the immune response
pathogens bodily fluids
-
in with
antibodies offerencemercy,accessfully removed
↑
areinto"hymus gland inside chest wall
, Cell Signalling
B cells and T cells spend most of their lives doing interferon
nothing.
Only when and if they encounter their
released by many cells to,inhibvo
stimulate t
viral replications +
complementary antigen will they be kick started into killer cells.
action. Cell signalling allows a co-ordinated
response by the collective action of all T and B cells.
cytokines
to
interleukins Released by helper cells
stimulate and B cell
+
2 GILL Proliferation + differentration.
cell-signalling
When a pathogen invades the body morecules.
↳ expansion
there are three ways antigens can be
presented to Tand B cells.
I response
cellmediatech
n e e
icels B CeLS- macrophages add the
ppc macrophage antigen on one
B response glycoprotein.
·,
=>
⑧
MHC
antigens
-
gavan in
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 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 suruthijanahan. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.
