EdenteV2, Istex, Corpus, bibRecord, 000E83

Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater (Tamandua tetradactyla, Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions

Identifieur interne : 000E83 ( Istex/Corpus ); précédent : 000E82; suivant : 000E84

Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater (Tamandua tetradactyla, Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions

Auteurs : L. F. Rossi ; J. P. Luaces ; H. J. Aldana Marcos ; P. D. Cetica ; G. Perez Jimeno ; M. S. Merani

Source :

Anatomia, Histologia, Embryologia [ 0340-2096 ] ; 2013-08.

RBID : ISTEX:1DCE848EA550AA023B264F6527BF6255D9E69698

English descriptors

KwdEn :
- Anat, Anteater, Armadillo, Arrowhead, Arrowhead marks, Bartmann, Basal, Basal membrane, Blackwell verlag gmbh anat, Buenos aires, Bulbourethral glands, Cavernosum, Cetica, Chromatin, Connective tissue, Corpus cavernosum, Corpus spongiosum, Dasypus, Dasypus novemcinctus, Duct, Embryol, Epididymis, Epithelium, Erectile, Erectile process, Erectile tissues, Florencio varela, Genital, Genital tract, Giant anteater, Glans, Gmbh, Grasse, Histol, Histological, Histology, Inactive gonads, Lesser anteater, Lipid droplets, Lumen, Membranous, Membranous urethra, Morphology, Other xenarthrans, Pelvic cavity, Penile, Penile urethra, Penis, Prostate gland, Reproductive, Reproductive tract, Rete testis, Rossi, Scale bars, Seminal vesicle, Seminiferous, Seminiferous epithelium, Seminiferous tubules, Sertoli, Sertoli cells, Sloth, Smooth muscle cells, Sperm, Sperm heads, Spermatid, Spermatogenesis, Spermatogonium, Spermatozoon, Spongiosum, Synaptonemal complexes, Tail length, Tamandua, Tamandua tetradactyla, Testicular, Testis, Tetradactyla, Tubule, Tunica albuginea, Urethra, Verlag.
Teeft :
- Anat, Anteater, Armadillo, Arrowhead, Arrowhead marks, Bartmann, Basal, Basal membrane, Blackwell verlag gmbh anat, Buenos aires, Bulbourethral glands, Cavernosum, Cetica, Chromatin, Connective tissue, Corpus cavernosum, Corpus spongiosum, Dasypus, Dasypus novemcinctus, Duct, Embryol, Epididymis, Epithelium, Erectile, Erectile process, Erectile tissues, Florencio varela, Genital, Genital tract, Giant anteater, Glans, Gmbh, Grasse, Histol, Histological, Histology, Inactive gonads, Lesser anteater, Lipid droplets, Lumen, Membranous, Membranous urethra, Morphology, Other xenarthrans, Pelvic cavity, Penile, Penile urethra, Penis, Prostate gland, Reproductive, Reproductive tract, Rete testis, Rossi, Scale bars, Seminal vesicle, Seminiferous, Seminiferous epithelium, Seminiferous tubules, Sertoli, Sertoli cells, Sloth, Smooth muscle cells, Sperm, Sperm heads, Spermatid, Spermatogenesis, Spermatogonium, Spermatozoon, Spongiosum, Synaptonemal complexes, Tail length, Tamandua, Tamandua tetradactyla, Testicular, Testis, Tetradactyla, Tubule, Tunica albuginea, Urethra, Verlag.

Abstract

The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty‐like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologically distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 μm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis presented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.

Url:

https://api.istex.fr/document/1DCE848EA550AA023B264F6527BF6255D9E69698/fulltext/pdf

DOI: 10.1111/ahe.12008

Links to Exploration step

ISTEX:1DCE848EA550AA023B264F6527BF6255D9E69698

Le document en format XML

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<author><name sortKey="Aldana Marcos, H J" sort="Aldana Marcos, H J" uniqKey="Aldana Marcos H" first="H. J." last="Aldana Marcos">H. J. Aldana Marcos</name>
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<term>Anteater</term>
<term>Armadillo</term>
<term>Arrowhead</term>
<term>Arrowhead marks</term>
<term>Bartmann</term>
<term>Basal</term>
<term>Basal membrane</term>
<term>Blackwell verlag gmbh anat</term>
<term>Buenos aires</term>
<term>Bulbourethral glands</term>
<term>Cavernosum</term>
<term>Cetica</term>
<term>Chromatin</term>
<term>Connective tissue</term>
<term>Corpus cavernosum</term>
<term>Corpus spongiosum</term>
<term>Dasypus</term>
<term>Dasypus novemcinctus</term>
<term>Duct</term>
<term>Embryol</term>
<term>Epididymis</term>
<term>Epithelium</term>
<term>Erectile</term>
<term>Erectile process</term>
<term>Erectile tissues</term>
<term>Florencio varela</term>
<term>Genital</term>
<term>Genital tract</term>
<term>Giant anteater</term>
<term>Glans</term>
<term>Gmbh</term>
<term>Grasse</term>
<term>Histol</term>
<term>Histological</term>
<term>Histology</term>
<term>Inactive gonads</term>
<term>Lesser anteater</term>
<term>Lipid droplets</term>
<term>Lumen</term>
<term>Membranous</term>
<term>Membranous urethra</term>
<term>Morphology</term>
<term>Other xenarthrans</term>
<term>Pelvic cavity</term>
<term>Penile</term>
<term>Penile urethra</term>
<term>Penis</term>
<term>Prostate gland</term>
<term>Reproductive</term>
<term>Reproductive tract</term>
<term>Rete testis</term>
<term>Rossi</term>
<term>Scale bars</term>
<term>Seminal vesicle</term>
<term>Seminiferous</term>
<term>Seminiferous epithelium</term>
<term>Seminiferous tubules</term>
<term>Sertoli</term>
<term>Sertoli cells</term>
<term>Sloth</term>
<term>Smooth muscle cells</term>
<term>Sperm</term>
<term>Sperm heads</term>
<term>Spermatid</term>
<term>Spermatogenesis</term>
<term>Spermatogonium</term>
<term>Spermatozoon</term>
<term>Spongiosum</term>
<term>Synaptonemal complexes</term>
<term>Tail length</term>
<term>Tamandua</term>
<term>Tamandua tetradactyla</term>
<term>Testicular</term>
<term>Testis</term>
<term>Tetradactyla</term>
<term>Tubule</term>
<term>Tunica albuginea</term>
<term>Urethra</term>
<term>Verlag</term>
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<term>Anteater</term>
<term>Armadillo</term>
<term>Arrowhead</term>
<term>Arrowhead marks</term>
<term>Bartmann</term>
<term>Basal</term>
<term>Basal membrane</term>
<term>Blackwell verlag gmbh anat</term>
<term>Buenos aires</term>
<term>Bulbourethral glands</term>
<term>Cavernosum</term>
<term>Cetica</term>
<term>Chromatin</term>
<term>Connective tissue</term>
<term>Corpus cavernosum</term>
<term>Corpus spongiosum</term>
<term>Dasypus</term>
<term>Dasypus novemcinctus</term>
<term>Duct</term>
<term>Embryol</term>
<term>Epididymis</term>
<term>Epithelium</term>
<term>Erectile</term>
<term>Erectile process</term>
<term>Erectile tissues</term>
<term>Florencio varela</term>
<term>Genital</term>
<term>Genital tract</term>
<term>Giant anteater</term>
<term>Glans</term>
<term>Gmbh</term>
<term>Grasse</term>
<term>Histol</term>
<term>Histological</term>
<term>Histology</term>
<term>Inactive gonads</term>
<term>Lesser anteater</term>
<term>Lipid droplets</term>
<term>Lumen</term>
<term>Membranous</term>
<term>Membranous urethra</term>
<term>Morphology</term>
<term>Other xenarthrans</term>
<term>Pelvic cavity</term>
<term>Penile</term>
<term>Penile urethra</term>
<term>Penis</term>
<term>Prostate gland</term>
<term>Reproductive</term>
<term>Reproductive tract</term>
<term>Rete testis</term>
<term>Rossi</term>
<term>Scale bars</term>
<term>Seminal vesicle</term>
<term>Seminiferous</term>
<term>Seminiferous epithelium</term>
<term>Seminiferous tubules</term>
<term>Sertoli</term>
<term>Sertoli cells</term>
<term>Sloth</term>
<term>Smooth muscle cells</term>
<term>Sperm</term>
<term>Sperm heads</term>
<term>Spermatid</term>
<term>Spermatogenesis</term>
<term>Spermatogonium</term>
<term>Spermatozoon</term>
<term>Spongiosum</term>
<term>Synaptonemal complexes</term>
<term>Tail length</term>
<term>Tamandua</term>
<term>Tamandua tetradactyla</term>
<term>Testicular</term>
<term>Testis</term>
<term>Tetradactyla</term>
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<front><div type="abstract">The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty‐like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologically distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 μm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis presented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.</div>
</front>
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<affiliation>Laboratorio de Biología Cromosómica, Facultad de Medicina, Universidad de Buenos Aires, C1121ABG, C.A.B.A, Argentina</affiliation>
<affiliation>Tel.: +54 11 5950 9500 int. 2153;Fax: +54 11 5950 9612;e‐mail:</affiliation>
<affiliation>E-mail: mmerani@fmed.uba.ar</affiliation>
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<originInfo><publisher>Blackwell Publishing Ltd</publisher>
<dateIssued encoding="w3cdtf">2013-08</dateIssued>
<dateCreated encoding="w3cdtf">2012-08-30</dateCreated>
<dateCaptured encoding="w3cdtf">2012-03-01</dateCaptured>
<dateValid encoding="w3cdtf">2012-08-01</dateValid>
<copyrightDate encoding="w3cdtf">2013</copyrightDate>
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<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<abstract>The anatomy and histology of the male genital tract of the lesser anteater were studied. Fine details of spermatozoa regarding their genesis and morphology were also studied in six adult specimens. The testes lie in the pelvic cavity. The deferent duct emerges from the epididymis and opens into the ejaculatory duct, which drains into the membranous urethra. Accessory glands (prostate, seminal vesicle and bulbourethral gland) are histologically similar to those described in other mammals. The short penis presents an urethral orifice, while the corpus spongiosum becomes thinner at the end indicating the absence of a histologically defined glans. The seminiferous epithelium shows: (1) Sertoli cells with deep nuclear indentations, (2) spermatogonia with crusty‐like chromatin, (3) spermatocytes at different stages of maturation and (4) three morphologically distinct stages of spermatid differentiation according to nuclear shape, acrosome development and chromatin condensation. Sperm heads appear oval. The length of the spermatozoa averages 67.33 ± 1.60 μm. Two specimens with inactive spermatogenesis were azoospermic. Their testes and epididymis presented sizes smaller than those with active spermatogenesis. These studies together with others in anteaters may contribute to successful breeding in conservation programmes.</abstract>
<relatedItem type="host"><titleInfo><title>Anatomia, Histologia, Embryologia</title>
</titleInfo>
<titleInfo type="abbreviated"><title>Anat. Histol. Embryol.</title>
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<subject><genre>article-category</genre>
<topic>Original Article</topic>
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<identifier type="ISSN">0340-2096</identifier>
<identifier type="eISSN">1439-0264</identifier>
<identifier type="DOI">10.1111/(ISSN)1439-0264</identifier>
<identifier type="PublisherID">AHE</identifier>
<part><date>2013</date>
<detail type="volume"><caption>vol.</caption>
<number>42</number>
</detail>
<detail type="issue"><caption>no.</caption>
<number>4</number>
</detail>
<extent unit="pages"><start>247</start>
<end>256</end>
<total>10</total>
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<identifier type="ark">ark:/67375/WNG-25X8NM2M-X</identifier>
<identifier type="DOI">10.1111/ahe.12008</identifier>
<identifier type="ArticleID">AHE12008</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2013 Blackwell Verlag GmbH© 2012 Blackwell Verlag GmbH</accessCondition>
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Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater (Tamandua tetradactyla, Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions

Anatomy and Histology of the Male Reproductive Tract and Spermatogenesis Fine Structure in the Lesser Anteater (Tamandua tetradactyla, Myrmecophagidae, Xenarthra): Morphological Evidences of Reproductive Functions

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