The bacteria appear pink. The macrophage (appearing blue) is stretching out and engulfing (eating) them. Macrophages are a type of white blood cell which acts as a 'Pacman' in our bodies - it eats foreign bodies (like bacteria) and digests them. This is part of your body's front line defense against invaders.
Yersinia pests | Gram-negative rod-shaped bacterium. It is a facultative anaerobe that can infect humans and other animals. Human Y. pestis infection takes three main forms: pneumonic, septicemic, and the notorious bubonic plagues.
(article repris dans ) Caféine, je t’aime. Comme l’a dit Alfred Rényi (et pas Paul Erdös), tu es une matière première des mathématiques : « Un mathématicien est une machine qui transforme le café en théorèmes.
Martin Oeggerli Fibrin is a protein created by the body that works with platelets in the blood to clot a wound. As they reach the wound site, they attach themselves to fibers, and create a mesh. Working with the platelets, they make a scab that covers the wound until it heals. Though, with the naked eye you would never guess that the process looks like this.