Data/hora: 07/06/2024 08:46:48

Provedor de dados: | 27
País: | Belgium
Título: | Observations on the ultrastructure of the proboscis epithelia in &lt;i&gt;Polycystis naegelii&lt;/i&gt; Kölliker (Turbellaria Eukalyptorhynchia) and some associated structures
Autores: | Schockaert, E.R.; Bedini, C.
Data: | 1978
Ano: | 1978
Palavras-chave: | Skin; Ultrastructure; Polycystis naegelii.
Resumo: | The epithelium of the anterior tip of the bodywall, of the proboscis cavity and of the proboscis cone in &lt;i&gt;Polycystis naegelii&lt;/i&gt; has been studied with the electron microscope. These epithelia are formed by six syncytial belts separated from each other by cellular limits: one belt belongs to the epidermis, three line the cavity and two cover the cone. The posterior belt of the cavity and those of the cone are of the insunk type bringing about a peculiar relationship between the latter two. Moreover, they are associated with muscular elements under the basal cone belt but above its basement membrane. Nine different kinds of glands have been observed erupting at the surface of the epithelia in the studied area, while six different sorts of sensorial receptors are associated with them. Knowledge of the proboscis of Polycystididae from lightmicroscopy as well as some earlier electronmicroscopic observations on Turbellaria are commented on and some conclusions for the systematics discussed.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6984
Fonte: | %3Ci%3EActa+Zool.+Fenn.+154%3C%2Fi%3E%3A+175-191
Fonte: | info:eu-repo/semantics/restrictedAccess