Biomaterial Database

Schistosoma mansoni tegumental appendages: scanning microscopy following thiocarbohydrazide-osmium preparation. 1977

A W Senft, and W B Gibler

Scanning photographs of the surface of normal adult male and female Schistosoma mansoni are given. The specimens were prepared using a thiocarbohydrazide technique which facilitates the binding of osmium. The resultant deep penetration of osmium preserves surface detail for electron reflection. The schistosomal tegument is characterized by a variety of surface bosses and spines. The function of certain of these is thought to be tactile or as chemoreceptors. Numerous tegumental pores surrounding setae in surface tubercles are shown. Clefts in the inner aspect of the gynecophoral canal are also seen. The excretory pore in both male and female is shown, along with a cluster of receptors at the terminus of the gynecophoral groove. Such grouped receptors may function to indicate position of the worm in copula.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008855	Microscopy, Electron, Scanning	Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.	Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D009992	Osmium	A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os.
D005260	Female		Females
D006834	Hydrazines	Substituted derivatives of hydrazine (formula H2N-NH2).	Hydrazide
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012550	Schistosoma mansoni	A species of trematode blood flukes of the family Schistosomatidae. It is common in the Nile delta. The intermediate host is the planorbid snail. This parasite causes schistosomiasis mansoni and intestinal bilharziasis.	Schistosoma mansonus,mansonus, Schistosoma