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

Chemotaxis

Add visual punch to your presentations with unabridged audio-free CELLS alive! Videos.

 

Neutrophils are our body's first line of defense against bacterial infections. After leaving nearby blood vessels, these cells recognize chemicals produced by bacteria in a cut or scratch and migrate "toward the smell". The above neutrophils were placed in a gradient of fMLP (n formyl methionine- leucine- phenylalanine), a peptide chain produced by some bacteria. The cells charge out like a "posse" after the bad guys.

There are no bacteria in this sequence, but if there were, the white cells would eat them by the process of PHAGOCYTOSIS.

 

 

 

 

 

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