immune system

immune system - Immune system Immune...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Immune system Immune system By the end of the lesson you should be able to Outline the stages in phagocytosis. Describe how antibodies work and how they are  specific.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
First lines of defence First lines of defence skin  prevents  entry tears                a ntib a c te ria l                 e nzym e s saliva   a ntib a c te ria l                 e nzym e s stomach acid                lo w pH kills   ha rm ful m ic ro b e s mucus  lining s   tra ps  dirt a nd  m ic ro b e s good” gut bacteria  o ut  c o m pe te  b a d
Background image of page 2
Pathogens Pathogens = disease causing micro-organisms bacteria virus fungi,  protozoa,  parasite,  prion
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Second lines of defence Second lines of defence Involves white blood cells Non-specific response invading pathogens are targeted by  macrophages Specific response lymphocytes produce chemicals called  antibodies that target specific pathogens
Background image of page 4
Phagocytes Phagocytes
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/07/2011 for the course BIOLOGY 100 taught by Professor Staff during the Winter '08 term at BYU.

Page1 / 18

immune system - Immune system Immune...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online