CELLS alive LOGO

Cell Biology

Microbiology

Immunology

Microscopy

Cell Models
Mitosis
Meiosis
Cell Cycle

Cell Cams

HowBig?

Puzzles

Quizzes

Stock Video

the CDROM

Downloads

Cell Gallery

Crystal Gallery

Translate

Homework





 


Ouch! ..... Anatomy of Splinter ..... Chemotaxis ..... Phagocytosis ..... Oxidative Burst

Anatomy of a Splinter

Circulating CellsTrauma, bacteria and dirt signal to white cells in nearby vessels there is damage to control. Neutrophils, the most active and phagocytic of the white blood cells, become sticky and begin to adhere to the inside of the vessel wall. Adherence slows the cells down, making them "roll" on the inside of the vessel. The neutrophils then become superadherent and squeeze out between endothelial cells that line the vessel, a phenomenon called "diapedesis".

From there, the white cells must FIND, EAT, and KILL foreign microbes.

CHEMOTAXIS ... how white cells FIND the bad guys

PHAGOCYTOSIS ... how white cells EAT microbes

OXIDATIVE BURST ... how white cells KILL bacteria

 

Some Keywords:

chemotactic agent, phagocytosis, opsonin, neutrophil+peroxide, neutrophil rolling, cytokine, host defense, diapedesis, defensin, lysosomal granule

 

 


Home  |  About Us  |  Awards  |  Privacy Policy  |  Permissions  |  Contact  |  ©2006 Quill Graphics