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• Rev. Bras. Zool. 5 (4) • 1988 • https://doi.org/10.1590/S0101-81751988000400003   copiar

Morfologia da glândula intermaxilar do sapo (Bufo paracnemis Lutz, 1925)

Autoria SCIMAGO INSTITUTIONS RANKINGS

Resumo

The intermaxillary gland of Bufo paracnemis Lutz, 1925 is located at the pre-nasal area being divided anteriorly by the ascendent processes of the intermaxillary bone. The secretory tubules converge to form very ramified ducts which drain into a common opening in a fosseta underlying the vomer bone. The cells of the intermaxillary gland were be classified in four distinct types: Light-granule secretory; Dark-granule secretory; ciliated and basal cells. The light-granule secretory cells, are the main type of the secretory tubules, which are also found, in smaller numbers, in the excretory ducts. The dark-granule secretory cells appear in a low number, both in the secretory tubules and in the excretory ducts. Degranulated cells are frequently found in the excretory ducts and represent the degranulated phase of dark-granule secretory cells. The ciliated cells occur only in the excretory ducts. The basal cells occur in small number in the excretory ducts and secretory tubules. In the excretory ducts these cells are regarded as being mioepithelial cells. Although usually described in the literature as mucous, the secretory cells of the intermaxillary gland have serous characteristics. The intermaxillary gland is the first salivary gland to appear in the vertebrate evolution. Its duct system is uniformly lined by ciliated cells and scattered secretory cells. This indicates that in the evolution, of salivary glands, there was a diversification of the duct system, together with progressxve concentration of secretory cells in special áreas of this system.

Morfologia da glândula intermaxilar do sapo (Bufo paracnemis Lutz, 1925)

Marlene Soares Dias Alves

Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte - 30.000

ABSTRACT

The intermaxillary gland of Bufo paracnemis Lutz, 1925 is located at the pre-nasal area being divided anteriorly by the ascendent processes of the intermaxillary bone. The secretory tubules converge to form very ramified ducts which drain into a common opening in a fosseta underlying the vomer bone.

The cells of the intermaxillary gland were be classified in four distinct types: Light-granule secretory; Dark-granule secretory; ciliated and basal cells. The light-granule secretory cells, are the main type of the secretory tubules, which are also found, in smaller numbers, in the excretory ducts. The dark-granule secretory cells appear in a low number, both in the secretory tubules and in the excretory ducts. Degranulated cells are frequently found in the excretory ducts and represent the degranulated phase of dark-granule secretory cells. The ciliated cells occur only in the excretory ducts. The basal cells occur in small number in the excretory ducts and secretory tubules. In the excretory ducts these cells are regarded as being mioepithelial cells.

Although usually described in the literature as mucous, the secretory cells of the intermaxillary gland have serous characteristics.

The intermaxillary gland is the first salivary gland to appear in the vertebrate evolution. Its duct system is uniformly lined by ciliated cells and scattered secretory cells. This indicates that in the evolution, of salivary glands, there was a diversification of the duct system, together with progressxve concentration of secretory cells in special áreas of this system.

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  • Alves, M.S.D., 1979. A glândula intermaxilar do sapo (Bufo paracnemis Lutz, 1925): Estudo anatômico, histológico, histoquímico e ultra-estrutural. Tese de mestrado, Departamento de Morfologia do ICB da UFMG.
  • Andrew, W., 1964. Comparative aspects of structure of the salivary glands. In: Sreebny, L.M. & J. Meyer. ed. Salivary Glands and their secretions. New York,Pergamon Press, p.3.
  • Cuttler, L.S.& A.P. Chaudhry. 1975. Cytodifferentiation of striated duct cells and secretory cells of the convoluted granular tu bules of the rat submandibular gland. Am. J. Anat., 143:201-218.
  • De Vos, C.M., 1935. Spelaeophryne and the bearing of its cranial anatomy on the monophyletic origin of the ethiopian and malagasy Microhylids. Anat. Anz., 80:241-265.
  • Fahrenholtz, C., 1934. Die glandula intermaxillaris einer Blindwühle (Uraeotyphlus menoni). Gegenbaurs Jb. Bd., 73:461-468.
  • Fahrenholtz, C., 1937. Drüsen der mundhole. In: Bolk, L.; E. Goppert; E. Kallius & W. Lubosh. ed. Handburch der wergleichenden Anatomie der wirbeltiere. Urban Berlin -Wien. vol. 3, p. 115-210.
  • Fox, H.; R. Mahoney & E. Bailey. 1970. Aspects of the ultrastructure of the alimentary-canal, and associated glands of the Xenopus laevis larva. Archs. Biol. (Liége) 81:21-50.
  • Francis, E.T.B., 1961. The sources and nature of salivary secretions in amphibia. Proc. zool. Soe, Lond., 136:453-476.
  • Junqueira, L.C.U. & F. Fava de Moraes. 1965. Comparative aspects of the vertebrate major salivary glands biology. In: Botherman, W., ed. Secretion and Excretion. Berlin, Springer Verlag, p. 36-48.
  • Junqueira, L.C.U., 1967: Control of cell secretion. In: Schneyer, L.H. & C.A. Schneyer, ed. Secretory Mechanisms of salivary glands. New York and Londres, Academic Press, p. 286-302.
  • Leeson, C.R., 1967. Structure of salivary glands. In: Code, Charles F.,ed. Alimentary Canal. Washington, D.C., American Physiological Society, p. 463-495.
  • Lima, T.G., 1976. Estudo radioautográfico da secreção de glico-proteínas na glândula sub-mandibular da camundonga (Mus musculus) após injeção de L. (1-3H) - FUCOSE. Tese de mestrado, Departamento de Morfologia do ICB da UFMG.
  • Müller, E., 1932. Untersuchungen über die mundhölen drusen der anuren Amphibien. Morph. Jb., 70:131-172.
  • Oeder, R., 1905. Die Intermaxillardrüse der kröte. Zool. Anz., 24:538-539, Engelmann, Leipzig.
  • Oeder, R., 1906. Die Entstehung der Munddrüsen und Zahnleiste der Anuren. Jenaische Zeitschr. F. Naturwissensch. 41: 506-523.
  • Oppel, A., 1900. Lehrbuch der vergleichenden mikroskopischen anatomie der wirbeltiere, 3:513-521, G. Fischer, Jena.
  • Ramaswani, L.S., 1936. The morphology of Bufonid Head. Proc. zool. Soc. London, 4: 1157-1169.
  • Reichel, P., 1883. Beiträge zur morphologie der Mundhölendrüsen der Wilbertiere. Morph. Jahrb.,8:1.
  • Richman, I.; M. Gelfand & J.M. Hill. 1947. A method for descalcifying bone for histologic section. Arch. Path., 44:92-95.
  • Riva, A.; M. Del Fiacco Testa-Riva & M.S. Lantini. 1976. Fine structure and cytochemistry of the intra-lobular ducts of the human parotid gland. J. Anat., 122:629-640.
  • Schelegel, 1833. in Ph. Fr. de siebolds Fauna japonica J. Müller et Co., ed. Amstelodami.
  • Schackleford, J.M. & W.H. Wilborn. 1968. Structural and histochemical diversity in mammalian salivary glands. Ala. J. Med. Sci., 51:180-203.
  • Tandler, B.; C.R. Denning; I.D. Mandel & A.H. Kutscher. 1970. Ultrastructure of human labial salivary glands. III. Myoepithelium and ducts. J. Morph., 130:227-246.
  • Tandler, B. & R.A. Erlandson. 1976. Ultrastructure of Baboon parotid gland. Anat. Rec., 184:115-132.
  • Tucker, R., 1958. Taxonomy of the salivary glands of vertebrates. Systemic Zool., 7:74-83.
  • Wiedersheim, R., 1876. Die kopfdrüsen der geschwänzten Amphibien und die Glandula intermaxillaris der Anuren. Zeitschr. F. Wiss. Zoll. Bd. XXVII: 1-50.
  • Williams, T.W., 1948. The visualization of vertebrate capillary beds by intra-vascular precipitation of lead chromate. Anat. Rec., 100:115-126.
  • Williams, T.W. & C.C.Boyer. 1965. A procedure for selective differentiation of ephitelial derivatives in gross blocks of embryonic and adult tissues. J. Dent. Res., 44:763-767.
  • Young, J.A. & E.W. Van Lennep. 1977. Morphology and physiology of salivary myoepithelial cells. In: Robert K. Crane. Ed., Gastro Intestinal Physiology II vol. 12, University Park Press-Baltimore, pp. 105-125.
  • Zylberberg, L., 1976. Donnés histologiques sur les glandes linguales de quelques batraciens anoures. J. Biol. Buccale, 4:237-259.
  • Zylberberg, L., 1977. Histochemistry and ultrastructure of amphibian lingual glands and phylogenetic relations. Histochem. J., 9:505-520.

Datas de Publicação

  • Publicação nesta coleção
    11 Ago 2009
  • Data do Fascículo
    1988
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