Ultrastructure of the Rete testis in the Cat (Felis domestica, L.)*

Viotto, Maria José Salete; Orsi, Antônio Marcos; Vicentini, Carlos Alberto; Dias, S. Mello; Gregório, Elisa Aparecida

doi:10.1111/j.1439-0264.1993.tb00349.x

Cited by 11 publications

(11 citation statements)

References 16 publications

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“…Similar findings have been also recorded in cat, where tunical rete tubules appeared communicating with the extra-testicular rete testis [10].…”

Section: Discussionsupporting

confidence: 89%

“…Septal segments of rete tubules as those recorded in goat, bovines and cat were demonstrated in the present study [7,8,10]. These septal segments connect the terminal parts of the seminiferous tubules with the mediastinal rete [7].…”

Section: Discussionsupporting

confidence: 76%

“…The spatial topography of the excurrent duct system of the mammalian testis has been described by several authors in horse, goat, bull, cat [6][7][8][9][10]. Amman et al described the connection between the seminiferous tubules and the efferent ducts in the stallion [6].…”

Section: Introductionmentioning

confidence: 99%

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The development of the intratesticular excurrent duct system of donkey (Equus asinus) from birth to maturity

Hh¹,

Mnk²,

Ae³

et al. 2017

Histol Cytol Embryol

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The testis of the donkey was completely descended into the scrotum around birth. It was covered by a thick tunica albuginea consisting of outer and inner fibrous layers in addition to middle vascular one. Discrete bundles of smooth muscle cells were demonstrated in the outer fibrous layer of the tunica albuginea. These cells give the tunica albuginea a contractile function, which may aid in sperm transport. The present study emphasized an irregular arrangement of the testicular lobules of the donkey during various stages of the postnatal life. Such arrangement does not allow some lobules to have direct contact with the mediastinum testis. The latter was located paraxially, toward the epididymal border and extended about two-thirds of the testicular length; it is thick at the head extremity and gradually faded out caudal wards. The connection between the seminiferous cords and the initial part of the straight tubules exhibited a sharp cut contact in neonates, but it demonstrated exfoliated supporting and germ cells, as well as crowded population of peritubular cells in suckling animals. In premature ones, the connection between the seminiferous tubules and straight testicular tubules was characterized by a peculiar structure appearance that attained more modification and development. This connection included two regions; terminal segment of the seminiferous tubule and a dilated initial part of the straight tubule. In mature stage, the terminal segment was composed of three regions with different cellular composition. The duct system of the donkey testis included the intralobular, interlobular, mediastinal and tunical segments in addition to the efferent ductules. From the seminiferous tubules to the efferent ductules, the lining epithelium was essentially the same in cellular composition; however these passages differed in size and configuration from region to another.

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“…Similar findings have been also recorded in cat, where tunical rete tubules appeared communicating with the extra-testicular rete testis [10].…”

Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 76%

See 1 more Smart Citation

The development of the intratesticular excurrent duct system of donkey (Equus asinus) from birth to maturity

Hh¹,

Mnk²,

Ae³

et al. 2017

Histol Cytol Embryol

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“…On the other hand, previous studies have demonstrated that quite a few lymphocytes occasionally penetrate into the RT in the normal rat, cat, goat, boar, and bull [6][7][8][9][10][11] . Moreover, the presence of penetrating lymphocytes inside the TR in the normal state has been reported in the monkey 6) .…”

Section: Introductionmentioning

confidence: 99%

The presence of intra-tubular lymphocytes in normal testis of the mouse

Naito

Terayama

Hirai

et al. 2008

Okajimas Folia Anat. Jpn.

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Summary: Spermatoza contain various autoimmunogenic materials, which are recognized as foreign by the self immune system. Therefore, the blood-tesits-barrier (BTB) formed by Sertoli cells, basal lamina and myoid cells protects autoimmunogeneic spermatozoa from attack by the self immune system. However, the BTB at the tubuli recti (TR) and the rete testis (RT) is known to be incomplete against humoral substances. We investigated here whether the BTB is physiologically penetrated by lymphocytes in mice. We performed light and electron microscopical observation of the seminiferous tubules (ST), the TR and the RT in normal C3H/He mice. Although no lymphocytes were observed inside the ST, a very few lymphocytes could be found beyond the basal lamina of the TR and the RT. These lymphocytes were close to testicular spermatozoa in the TR lumen. These findings provide a possibility that lymphocytes may gain access to autoantigens of spermatozoa inside the TR and RT under physiological conditions in mice.

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“…On the basis of these analyses, the rete testis of some wild and domestic mammals, of laboratory rodents and of humans has been analyzed and basically assigned to two distinct morphological types: (1) cavitary and superficial RT present in rodents [Roosen-Runge, 1961;Dym, 1976;Cavicchia and Burgos, 1977] and marsupials [Orsi et al, 1979;Rodger, 1982], and (2) axial and labyrinth-like RT present in man [Bustos-Obrégon and Holstein, 1976;Roosen-Runge and Holstein, 1978] and in domestic mammals [Dym, 1976;Orsi et al, 1984;Hees et al, 1987Hees et al, , 1989Viotto et al, 1991Viotto et al, , 1993.…”

Section: Introductionmentioning

confidence: 99%

A Scanning Electron Microscopic Study of the Rete testis of the Guinea Pig

Beu¹,

Orsi²,

Gregório³

et al. 1998

Cells Tissues Organs

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Scanning electron microscopic (SEM) observations of the structure of the rete testis (RT) of guinea pigs preceded by and complemented with stereomicroscopy and light-microscopic studies showed that the RT of this species is predominantly cavitary. An axial and labyrinth-like morphological pattern was also observed in the RT complex, with partially interconnected chambers and epithelium-lined channels accompanying a connective axis observed in the middle portion of the cranial end of the testis. Characteristics of the chordaeretis and bullaeretis were also visualized in the guinea pig RT and the results are discussed in terms of the morphological patterns observed in the RT of other mammals and of man.

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Ultrastructure of the Rete testis in the Cat (Felis domestica, L.)*

Cited by 11 publications

References 16 publications

The development of the intratesticular excurrent duct system of donkey (Equus asinus) from birth to maturity

The development of the intratesticular excurrent duct system of donkey (Equus asinus) from birth to maturity

The presence of intra-tubular lymphocytes in normal testis of the mouse

A Scanning Electron Microscopic Study of the Rete testis of the Guinea Pig

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