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ULTRASTRUCTURE OF ENDOCRINE CELLS OF THE STOMACH (PROVENTRICULUS AND GIZZARD) OF THE RED-CAPPED CARDINAL (Paroaria g. gularis, LINNAEUS, 1766)
(Sociedad Chilena de Anatomía, 2001)
The ultrastructure of the pre-meiotic and meiotic stages of spermatogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)
(2002-04-01)
Spermatogenesis of 'corvina' P. squamosissimus starts from a stem cell that gives rise to germ cells. These cells are enveloped by Sertoli cells, forming cysts. The germ cells in the cysts are all at the same stage of ...
The ultrastructure of the pre-meiotic and meiotic stages of spermatogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)
(2002-04-01)
Spermatogenesis of 'corvina' P. squamosissimus starts from a stem cell that gives rise to germ cells. These cells are enveloped by Sertoli cells, forming cysts. The germ cells in the cysts are all at the same stage of ...
Some ultrastructural observations of the vegetative, resting and excysting ciliate, urostyla grandis (urostylidae, hypotrichida)
(Sociedad de Biología de Chile, 2009)
Ultrastructural features of the regenerative cells of the bees (Hymenoptera, Apidae) midguts
(California State University, 1999-01-01)
The epithelium of the bee ventriculus is formed by two cell types: the principal or digestive cells and the regenerative cells. In this article the ultrastructure of the regenerative cells is described, as well as the ...
Ultrastructural features of the regenerative cells of the bees (Hymenoptera, Apidae) midguts
(California State University, 1999-01-01)
The epithelium of the bee ventriculus is formed by two cell types: the principal or digestive cells and the regenerative cells. In this article the ultrastructure of the regenerative cells is described, as well as the ...
Ultrastructural study of the coagulating gland of Wistar rats submitted to experimental chronic alcohol ingestion
(1996-07-02)
Morphological changes of coagulating gland of Wistar rats submitted to the experimental chronic alcoholism were noted. Ultrastructurally, it was observed reduction of the granular endoplasmic reticulum cisternae and nuclei ...
Ultrastructural study of the coagulating gland of Wistar rats submitted to experimental chronic alcohol ingestion
(1996-07-02)
Morphological changes of coagulating gland of Wistar rats submitted to the experimental chronic alcoholism were noted. Ultrastructurally, it was observed reduction of the granular endoplasmic reticulum cisternae and nuclei ...
Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis
(2000-10-01)
The spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of ...