Game Time: What a Pig’s Guts and Euro 2016 Have in Common21 June 2016
GLOBAL - We might think of skin as being the surface barrier between an animal and the outside world, but we need to consider also a much larger surface: the gut wall.
Soccer pitch sized battle ground
The surface area of a healthy mature pig’s intestine can approach the size of a small soccer field. This is due to the finger-like projections, or villi, throughout most of the intestinal system and the microvilli on the surface cells of the villi.
Healthy villi and microvilli can multiply the surface area by a factor of well over 1000. The extensive surface area of the gut wall is a constant battle zone under attack from harmful microbes trying to break through. In fact, the gut wall is the largest organ (and front line) of the animal’s immune system.
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