Stomach This is a muscular bag which mixes ... also specialised structures called villi which have a tiny hair-like structure poking into the small intestine to absorb digested food.

Stomach This is a muscular bag which mixes ... also specialised structures called villi which have a tiny hair-like structure poking into the small intestine to absorb digested food.

The back muscles and your spine are located behind the abdominal cavity ... Birth defects that affect the anatomy of the ...