spermatocyte

[spər′mad·ə‚sīt]

(histology)

A cell of the last or next to the last generation of male germ cells which differentiates to form spermatozoa.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Spermatocyte

a male sexual cell derived from a spermatogonium. Two types of spermatocytés are distinguished: primary and secondary. Primary spermatocytes develop during the growth period, and secondary spermatocytés during the second meiotic division. The latter subsequently give rise to spermatids.

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References in periodicals archive

Testicular cell number estimation: To estimate the total number of spermatogonia A (pale-staining nucleus with a fine "dusty" distribution of heterochromatin throughout the nucleus), B (with dense clumps of heterochromatin around the periphery of the nucleus), (24) Sertoli cells, spermatocytes, round and long spermatids, and Leydig cells, a Nikon E200 light microscope (Tokyo, Japan) fitted with a 60x oil objective lens was applied at the final magnification of 1,640x.

The Impact of Echium Amoenum Distillate, on Naturally Boosting Fertility: Potential Ameliorative Role in Male Mice Reproductive Parameters

The control negative group (200x; H&E) has normal cyto-architecture, reveal interstitial tissues (IT) and seminiferous tubules (ST) with sustentacular cells and the normal developing germ cells: spermatogonia (Sp), spermatocytes I (SPI), spermatids (Spt), spermatozoa (Spz) with flagellum.

Does Oregano Protect Against Testicular Toxicity Produced by Ethylene Glycol in Adult Male Albino Rat?/ ?El Oregano Protege Contra la Toxicidad Testicular Producida por Etilenglicol en Ratas Macho Albinas Adultas?

Score 5 denotes no spermatozoa or spermatids and many spermatocytes; score 4 no spermatozoa or spermatids and few spermatocytes.

Decreased Expression of CDC25A in Azoospermia as the Etiology of Spermatogenesis Failure

Black perch < 90 mm SL did not have spermatozeugmata within the testicular tissues but all stages of spermatocyte development were present (Fig.

Reproductive Morphology of Male Black Perch (Embiotoca jacksoni)

In adult rats, Madhu, Sarkar, Biswas, Behera, and Patra (2011) observed reduction in seminiferous tubular areas, secondary spermatocytes and nuclear diameter of Leydig and Sertoli cells after 45 days of exposure to 1 mg [kg.sup.-1] bw [day.sup.-1] of 3-MCPD.

Experimental exposure to 3-monochloropropane-1,2-diol from the pre-puberty causes damage in sperm production and motility in adulthood/Exposicao experimental ao 3-monocloropropano-1,2-diol, a partir da pre-puberdade, causa alteracao na producao e motilidade espermatica na idade adulta

5: Spermatocyte abnormalities Primary rat spermatocytes stained with an anti-SCP3 antibody were selected to quantify synaptonemal complex abnormalities by fluorescence photomicroscopy.

Ex vivo assessment of testicular toxicity induced by carbendazim and iprodione, alone or in a mixture

In a study, administration of 200 and 300 mg/kg to rats for 60 days showed a significant increase in the number of sperms, sertoli cells, and primary spermatocyte compared to the control group.

A review on medicinal plants used for improvement of spermatogenesis

Seminiferous tubules were labeled as type A, B, C according to the spermatogenetic activity variations between tubules; A: Tubule consisting of sertoli cells and spermatogonia, no spermatocytes or spermatids; B: Tubule consisting of sertoli cells, spermatogonia and spermatocytes, no spermatids; C: Tubule consisting of sertoli cells, spermatogonia, spermatocytes and spermatids.

Effects of testosterone treatment on recovery of rat spermatogenesis after irradiation

Radiation-induced chromosome aberrations in mouse spermatocytes and oocytes.

Cytogenetic alterations in preimplantation mice embryos following male mouse gonadal gamma-irradiation: comparison of two methods for reproductive toxicity screening

Effects ofgamma rays on intact spermatocyte cells, with complete cessation of the spermatogenesis process, was reported on peach fruit flies (Shehata et al.

Ultrastructural observations on the gonads and neurosecretory cells of Schistocerca gregaria after treatment with lufenuron (CGA-184699)

After the meiotic division, a smaller secondary spermatocyte is formed.

A practical approach to testicular biopsy interpretation for male infertility