When bacteria get through the skin, the body's professional eaters hunt them down. Those are the neutrophils and the macrophages. Walk the six steps, from chemotaxis to exocytosis. Then run the kill clock and see what happens when the tags, the cell count, or the killing machinery is missing.
The professional eatersstep 1 of 6
The kill clocklive model
70%
10
Kills per minute
0
Time to clear
—
Result
—
Step 1 of 6tap a number or press Next
Seek
Engulf
Kill
Clear
Six steps, in order: chemotaxis, adherence, ingestion, fusion, killing and digestion, exocytosis. Two bubbles form along the way. The phagosome holds the microbe, and the phagolysosome kills it.