Our Bloodstream and the Defense Against Invaders

Front

Molecules specific to the invading bacteria are discovered by white blood cells.

Back

Detecting

Front

White blood cells discover molecules released from our own cells damaged by bacteria.

Back

Detecting

Front

White blood cells can eat bacteria and shred them apart as they are digested.

Back

Destroying

Front

Molecules from the digested bacteria are displayed on the white blood cells to signal the production of more white blood cells.

Back

Mobilizing action

Front

White blood cells release signaling molecules to promote more blood flow to the infection site delivering even more red blood cells, white blood cells, and signaling molecules.

Back

Mobilizing action

Front

Molecules to promote clotting of red blood cells and platelets are released and transported to the site of the infection.

Back

Mobilizing action

Front

Signaling molecules trigger fever to promote increased immune responses.

Back

Mobilizing action

Front

Raised body temperature creates a warmer environment than invading bacteria's optimal range.

Back

Destroying

Front

White blood cells clean up crew scooping up dead and damaged cells and releasing signal molecules that travel to the liver.

Back

Mobilizing action

Front

The liver releases C-reactive protein molecules into the bloodstream triggering more immune response activities.

Back

Mobilizing action