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Light Microscopical and Ultrastructural Characterization of Black Howler Monkey ( Alouatta caraya ) Ovarian Follicles
Author(s) -
Lopes L. H. R.,
Lucci C. M.,
Garcia M. P.,
De Azevedo R. B.,
Báo S. N.
Publication year - 2006
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/j.1439-0264.2005.00660.x
Subject(s) - ovary , biology , ultrastructure , electron microscope , zoology , anatomy , endocrinology , physics , optics
Summary The present study describes the morphological characteristics of black howler monkey ( Alouatta caraya ) ovarian follicles. One ovary of an adult healthy black howler monkey was collected and processed for light and electron microscopy. Primordial, primary, secondary, tertiary and pre‐ovulatory follicles were evaluated for their morphometrical aspects. The ovary of black howler monkey presented a distinct conformation with a uniform distribution of the follicles mostly in the peripheric cortex. This black howler monkey ovary presented a total of 59 921 ovarian follicles. From this amount, 71.1% were classified as primordial, 18.9% as primary, 8.1% as secondary, 1.4% as tertiary and 0.5% as pre‐ovulatory follicles. From all these developmental stages, the mean diameters of follicles, oocytes, oocytes nuclei and the mean number of granulosa cells are described. Moreover, primordial, primary and secondary follicles have been observed by electron microscopy.