secondary spermatocyte

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Related to secondary spermatocyte: primary spermatocyte, primary oocyte, secondary oocyte

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.

sec·on·dar·y sper·ma·to·cyte

the spermatocyte derived from a primary spermatocyte by the first meiotic division; each secondary spermatocyte produces two spermatids by the second meiotic division.

sec·on·dar·y sper·mat·o·cyte

(sek'ŏn-dar-ē spĕr-mat'ō-sīt)

The spermatocyte derived from a primary spermatocyte by the first meiotic division; each secondary spermatocyte produces two spermatids by the second meiotic division.

spermatocyte

the mother cell of a spermatid.

primary spermatocyte

daughter cell of a spermatogonium (an incongruous nomenclature in such an intensely masculine context). It undergoes the first meiotic division.

secondary spermatocyte

a cell produced by meiotic division of the primary spermatocyte, and which gives rise to the spermatid.

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References in periodicals archive ?

88** (c) Secondary spermatocytes number/cross-section Control 67.

Antispermatogenic, antiandrogenic activities of Albizia lebbeck (L.) Benth bark extract in male albino rats

In the secondary spermatocyte, the thick chromatids are clumped along the cell periphery.

Gametogenic processes in the pearl oyster, Pteria penguin (Roding, 1798) (Bivalvia, Mollusca)

340 [micro]m) shows a maximum spermatogenic activity with primary, secondary spermatocytes and spermatids; the discontinuous (23.

Epitelio germinal permanente y ciclo reproductivo en machos de atractosteus tropicus (lepisosteiformes: lepisosteidae) Tabasco, Mexico

Hence, a significant reduction in spermatogonia, spermatids and secondary spermatocytes was observed in the TD group.

The effect of Amantadine on Clomipramine induced sexual dysfunction in male rats

The FSH is responsible for the development of spermatogonia to secondary spermatocytes through different stages namely spermatogonia, spermatids, sertoli cells and secondary spermatocytes.

Clomipramine affects sexual behavior and reproductive functions in male rats

Few secondary spermatocytes with karyolytic nuclei can be seen.

Effect of Murraya paniculata (LINN) stem extract on testicular cell population dynamics and histology of testes on albino rats

To estimate the relative frequency of nondisjunction and malsegregation, secondary spermatocytes (metaphase II cells, MII) were scored for the number of metacentric and acrocentric macrochro-mosomes and presence of either the Y or two X chromosomes.

Cytogenetic analysis of chromosomal intermediates from a hybrid zone between two chromosome races of the Sceloporus grammicus complex (Sauria, Phrynosomatidae)

Therefore, reproductive phases of males were recognized according to the presence of spermatogonia, primary and secondary spermatocytes, spermatids and spermatozoa.

Cellular development of the germinal epithelium during the gametogenic cycle of the golden mussel Limnoperna fortunei (Bivalvia: Mytilidae)

In early recrudescence, primary spermatocytes predominate, whereas in late recrudescence, secondary spermatocytes and spermatids are most abundant; (3) Spermiogenesis, lumina of the seminiferous tubules are lined by clusters of sperm or metamorphosing spermatids.

Reproduction in the Great Basin Collared lizard, Crotaphytus bicinctores (Squamata: Crotaphytidae)

Secondary spermatocytes are seen less commonly than primary spermatocytes (Fig.

Gonadal organization and gametogenesis in Musculium argentinum (veneroida: sphaeriidae) from a population in Southern Chile

Specifically, primary spermatocytes and secondary spermatocytes strongly expressed cPdcl2 mRNA at 10 weeks.

Expression patterns of germ cell-specific phosducin-like 2 during testicular and ovarian development in chickens

Three stages in the testicular cycle (Table 1) were present: (1) regressed (= quiescence), seminiferous tubules contain Sertoli cells and spermatogonia; (2) recrudescence (= recovery), proliferation of cells in the germinal epithelium is in progress, primary, secondary spermatocytes and, in some cases, spermatids are present; (3) spermiogenesis (= sperm production), lumina of seminiferous tubules lined by spermatozoa; clusters of metamorphosing spermatids are present.

Reproductive cycle of the Central American mabuya, Mabuya unimarginata (squamata: scincidae) from Costa Rica