Transcript powerpoint
White Blood Cells
What do they do?
Play a large role in the immune system
Fight disease and infection
Creating antibodies
Phagocytosis
Doctors can use the amount of white
blood cells to determine if our body is
fighting an infection.
Make a table
Neutrophils
Abundance
Granules?
Role
Other
Eosinophils
Basophils
Monocyte
Lymphocyte
5 Types
2 main categories:
Granulocytes = contain granules
Neutrophils, Eosinophils, Basophils
Agranulocytes = do not contain granules
Monocytes, Lymphocytes
Neutrophils
Most abundant: 40-75%
Kill off bacteria
One of the first cells to travel to site of
inflammation
Main cell in “Pus”
Eosinophils
1-6% of cells
Kill off multicellular parasites
Involved in control of allergies and asthma
Presence in lungs, skin, and esophagus is a
sign of disease
Basophils
Least common 0.01-0.3%
Contain histamine and heparin (an anticoagulant).
Help to bring blood to the site of injury to promote
healing.
May contribute to the severity of allergic reactions.
Monocytes
BIG!
2-10%
Travel to site of infection where they
differentiate into MACROPHAGES
Elicit a immune response by presenting
antigens
Lymphocyte
Immune system: T-cells and B-cells
More on these later!!
Ejection of debris by exocytosis
https://www.youtube.com/watch?v=UKwwvIaR9aI
https://www.youtube.com/watch?v=r4-g6tVyUAU
https://www.youtube.com/watch?v=aWItglvTiLc