(from the article `bivalve`) ...The various types of stomach have been used to erect an alternative classification. Digestion typically takes place in two phases: extracellular ... ...the mill and the midgut is guarded by a filter of setae, which prevent large particles from passing into the midgut. The structure of the midgut ... [2... Found on http://www.britannica.com/eb/a-z/d/58
The plural of diverticulum. As a person ages, pressure within the large intestine (colon) causes pockets of tissue (sacs) that push out from the colon walls. A small bulging sac pushing outward from the colon wall is a diverticulum. Diverticula can occur throughout the colon but are most common near the end of the left side of the colon, the sigmoi... Found on http://www.encyclo.co.uk/local/20973
Diverticula: The plural of diverticulum. As a person ages, pressure within the large intestine (colon) causes pockets of tissue (sacs) that push out from the colon walls. A small bulging sac pushing outward from the colon wall is a diverticulum. Diverticula can occur throughout the colon but are most common near the end of the left side of the colo... Found on http://www.medterms.com/script/main/art.asp?articlekey=3079