The incidence of mucous and ciliated cells in epithelial linings was examined among odontogenic inflammatory cysts (radicular cysts) and developmental cysts (dentigerous and primordial cysts). Mucous cells were found in 20.8% of all cysts examined, while ciliated cells were found in 11.4%; however, ciliated cells were always accompanied by mucous cells. The incidence of mucous cells in radicula...

The aim of the present research was to investigate the changes of the sugar residues in the oviduct in the course of ageing in postmenopausal women vs normally menstruating women, by means of lectin histochemistry. Twenty asymptomatic postmenopausal women (48-83 years old) were recruited among patients who underwent a vaginal hysterectomy. Eight normally menstruating women were recruited as con...

Escherichia coli O157:H7 (EcO157), an agent of life threatening hemolytic-uremic syndrome, resides in ruminants and is released in feces at numbers as high as 10 million cells/gram. EcO157 could survive in manure for as long as 21 months, but we observed a 90% decrease in cells of an outbreak strain of EcO157 within half a day in wastewater from dairy lagoons. Although chemical, environmental a...

The epithelial surfaces in the trachea and principal bronchi of healthy rats were examined by scanning electron microscopy. A system of four cell types, ciliated, microvillous, brush, and goblet cells, in this order of frequency, were found and intermediate type cells were not seen. An extensive area of the surface examined was covered by densely ciliated epithelium. The presence of other cell ...

T HE role of rumen protozoa in ruminant metabolism has received increasing attention during the past few years. Increased rates of gain by lambs containing protozoa compared to protozoa-free lambs were reported by Abou Akkada and el-Shazly (1964) and Yoder et al. (1964), who demonstrated that certain rations are more readily digested by faunated than by defaunated lambs. Greater rumen ammonia c...

organization of various cells lining the olfactory mucosa of puntius ticto (hamilton, 1822) were described by light as well as scanning electron microscopy. the paired olfactory chambers located antero-dorsal to the eyes and communicated outside through anterior and posterior nasal openings. the oval shaped olfactory rosette lied at the bottom of chamber and composed of 18-20 lamellae arranged ...

The Eustachian tube is a small canal that connects the tympanic cavity with the nasal part of the pharynx. The epithelial lining of the Eustachian tube contains a ciliated columnar epithelium at the tympanic cavity and a pseudostratified, ciliated columnar epithelium with goblet cells near the pharynx. The tube serves to equalize air pressure across the eardrum and drains mucus away from the mi...

The amino acid sequences of five pheromones, Er-2, Er-3, Er-9, Er-11, and Er-20, secreted by cells of different mating types of the ciliated protozoa Euplotes raikovi, have been determined by automated Edman analyses of the whole proteins and germane fragments. In each case, the molecular mass was determined by plasma desorption or laser desorption mass spectrometry and was in excellent agreeme...

The germline chromosomes in Paramecium and other ciliated protozoa contain regions of DNA that are excised and eliminated during the development of a new macronuclear genome. Paramecium tetraurelia internal eliminated sequences (IESs) are invariably flanked by a 5'-TA-3' dinucleotide sequence that is part of a larger 8-bp terminal inverted-repeat consensus sequence. Both features, the absolutel...

The mouse oviduct is a complex, coiled tube which can be conveniently divided into three distinct regions: fimbria, ampulla, and isthmus. The funnel-like fimbriated tip, through which the ovum is transported after ovulation, is the most heavily ciliated portion of the oviduct. In the adult the cilia function to transport ova into the ostium of the fimbriated tip, and from there into the ampulla...