primary spermatocyte


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spermatocyte

 [sper-mat´o-sīt]
the mother cell of a spermatid.
primary spermatocyte the original large diploid cell into which a spermatogonium develops; it can later undergo the first meiotic division into the secondary spermatocyte.
secondary spermatocyte a haploid cell produced by meiotic division of the primary spermatocyte; it can then develop into the spermatid.

pri·mar·y sper·ma·to·cyte

the spermatocyte derived by mitotic division from a spermatogonium, and that undergoes the first division of meiosis.

pri·mar·y sper·ma·to·cyte

(prī'mar-ē spěr-mat'ŏ-sīt)
The spermatocyte derived by a growth phase from a spermatogonium; undergoes the first division of meiosis.

primary spermatocyte

an early stage in SPERMATOGENESIS.
References in periodicals archive ?
Score 5 of Johnsen categories is characterized by primary spermatocytes that will enter meiosis.
Groups Control Parameters Spermatogonia 41.20 [+ or -] 2.95 Sustentacular 15 [+ or -] 1.41 Primary Spermatocyte 45.60 [+ or -] 4.39 Spermatid 135.60 [+ or -] 12.97 Spermatozoa 119.20 [+ or -] 12.81 Groups Diabetic control Parameters Spermatogonia 35.00 [+ or -] 6.48 Sustentacular 15.71 [+ or -] 2.75 Primary Spermatocyte 41.29 [+ or -] 5.88 Spermatid 106.29 [+ or -] 17.17 (a) * Spermatozoa 80.86 [+ or -] 18.81 (a) * Groups A.
(6) Reversible arrest at the primary spermatocyte level can be due to heat, infections, or hormonal and nutritional factors, while irreversible arrest at the primary spermatocyte or spermatid level is most often related to chromosomes anomalies either in somatic cells or in germ cells with subsequent impairment of meiosis.
Effect of the treatment with nandrolone decanoate in the number of different cell types--type-A spermatogonia (SPA), pachytene primary spermatocytes (SP1(a)), round spermatids (SPtids), total germ cells (Germ cell) and Sertoli cells (STL) of the stage VIII of the seminiferous epithelium cycle (SEC) of sedentary rats and rats subjected to physical training.
They are spermatogonium, 5 stages of primary spermatocyte, secondary spermatocyte, 2 stages of spermatid and spermatozoa (Fig.
The condition of the gametes in a ripe triploid male is largely immature, with mostly primary spermatocytes, variable but minority proportions of secondary spermatocytes/spermatids, and rare populations of spermatozoa.
First, 4N primary spermatocytes fail to undergo complete meiosis and therefore cannot produce haploid sperm cells.
A) Primary spermatocytes (40X); B) Secondary spermatocytes (40X); C) Spermatids (40X); D) Spermatozoa (40X); E) Spermatozeugmata (20X).
In the proximal area, the epithelium is discontinuous and thin (18.96 [+ or -] 0.987 [micro]m), consisting of scarce primary spermatocytes and spermatogonia.