spermatogenesis


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Related to spermatogenesis: Sertoli cells, oogenesis, gametogenesis

spermatogenesis

 [sper″mah-to-jen´ĕ-sis]
the development of mature spermatozoa from spermatogonia; it includes spermatocytogenesis and spermiogenesis.

sper·ma·to·gen·e·sis

(sper'mă-tō-jen'ĕ-sis),
The entire process by which spermatogonial stem cells divide and differentiate into sperms. The process has three phases: spermatocytogenesis, meiosis, and spermiogenesis.
See also: spermiogenesis, meiosis, spermatocytogenesis.
Synonym(s): spermatogeny
[spermato- + G. genesis, origin]

spermatogenesis

/sper·ma·to·gen·e·sis/ (-jen´ĕ-sis) the process of formation of spermatozoa, including both spermatocytogenesis and spermiogenesis.

spermatogenesis

(spər-măt′ə-jĕn′ĭ-sĭs, spûr′mə-tə-)
n.
Formation and development of spermatozoa by meiosis and spermiogenesis.

sper·mat′o·ge·net′ic (-jə-nĕt′ĭk), sper·mat′o·gen′ic (-jĕn′ĭk) adj.

spermatogenesis

[spərmat′əjen′əsis, spur′-]
Etymology: Gk, sperma + genesis, origin
the process of development of spermatozoa, consisting of two stages. In the first stage, spermatogonia become spermatocytes, which develop into spermatids. In the second stage, called spermiogenesis, the spermatids become spermatozoa. Also called spermatocytogenesis, spermiogenesis. spermatogenic, spermatogenous, adj.
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Spermatogenesis

spermatogenesis

The process of sperm production, which occurs in the testes.

spermatogenesis

Physiology The production of male sex gametes; the maturational changes that transform spermatids into spermatozoa. See Sperm.

sper·ma·to·gen·e·sis

(spĕr'mă-tō-jen'ĕ-sis)
The entire process by which spermatogonial stem cells divide and differentiate into spermatozoa.
See also: spermiogenesis
Synonym(s): spermatocytogenesis.
[spermato- + G. genesis, origin]
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SPERMATOGENESIS
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SPERMATOGENESIS

spermatogenesis

(sper?mat-o-jen'e-sis) [? + genesis, generation, birth]
The formation of mature functional spermatozoa. In the process, undifferentiated spermatogonia become primary spermatocytes, each of which divides to form two secondary spermatocytes. Each of these divides to form two spermatids, which transform into functional motile spermatozoa. In the process, the chromosome number is reduced from the diploid to the haploid number.
See: illustration; gametogenesis; maturation; meiosisillustration

spermatogenesis

the form ofMEIOSIS producing male gametes. see GAMETOGENESIS.

Spermatogenesis

The process by which sperm develop to become mature sperm, capable of fertilizing an ovum.
Mentioned in: Infertility

spermatogenesis

the development of mature spermatozoa from spermatogonia; it includes spermatocytogenesis and spermiogenesis.
References in periodicals archive ?
14 In addition, some deletion patterns are more common in some populations, for example, in Eastern Siberian Yakuts9 and are compatible with normal spermatogenesis and fertility.
Of the reproductive/developmental effects documented in the literature, spermatogenesis is considered the most sensitive adverse effect of TCDD exposure, as shown by the use of this end point by the WHO in setting its tolerable daily intake for TCDD (Joint FAO/WHO Expert Committee on Food Additives 2001).
Increased apoptosis occurring during the first wave of spermatogenesis is stage-specific and primarily affects midpachytene spermatocytes in the rat testis.
Sertoli cell function depends on adequate stimulation by FSH and the elevation of FSH may result in abnormal spermatogenesis (28).
44] In 2008, the studies found that Mrhl regulated spermatogenesis through two molecular mechanisms.
However, the association and activities of these cells with the developing spermatogenic cells during spermatogenesis remains elusive.
Results: Spermatogenesis was suppressed and Johnsons score was decreased from normal spermatogenesis (10) to (6-8) in the experimental group 2 and was more improved in the Mentha piperita treated group as compare to the melatonin.
Effect of rejuvenation hormones on spermatogenesis.
When these events occur, the role of sertoli cell switches during puberty to support spermatogenesis.
1 Spermatogenesis is a complex process of germ cell proliferation and differentiation which leads to the production and release of spermatozoa from the testis.