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[log in to unmask] wrote: > > Joao Paulo Carvalho: I missed the initial posting on Nov. 11 re. "the loss > of cilia in the intestines of autopsied PD patients." You asked for the > meaning of "cilia." In the first place, there are no cilia in the digestive > tract of humans with the exception of a portion of the pharynx which is > common to both the digestive and respiratory systems. Cilia are "hair-like" > processes on the external surfaces of the epithelial cells of, for example, > the respiratory tract in which the function of these cilia is to sweep > materials such as dust out of the respiratory tract. Another example is the > presence of some ciliated cells in the inner lining of the oviduct, functioning > to help propel eggs toward the uterus. In the small intestine the structures > through which the products of digestion are absorbed into the circulatory > system are VILLI, small "finger-like" projections of the gut lining. I hope > this helps. > > Regards, Gaylord. (Prof..Emeritus of biology. 72/14/NY) > <frough @bigvax.alfred.edu> It certainly did.Thanks v. much