Muscle contractions then push the stool toward the rectum, and, by the time the stool reaches the rectum, most of the water has been absorbed, making the stool solid. When the colon's muscle contractions are slow or sluggish, the stool moves through the colon too slowly, resulting in too much water being absorbed.
The microparticulate allograft is a mixture of mineralized cortical bone particles of a standard combination of sizes between 100 and than 250 microns. This provides an optimal scaffold for delivering osteoinductive growth factors. This preparation has an appropriate 3-dimensional (3-D) structure
Return to main Ciliophora page. Paramecium are the most commonly observed protozoans and, depending on the species, they are from 100-350 um long. They are easily maintained and cultured and Paramecium caudatum (shown at the left) are characterized by a large macronucleus and a single compact micronucleus.