Histological section through testicular parenchyma of a boar. 1 Lumen of Tubulus seminiferus contortus, 2 spermatids, 3 spermatocytes, 4 spermatogonia, 5 Sertoli cell, 6 myofibroblasts, 7 Leydig cells, 8 capillaries
Identifiers
MeSH
D013093
FMA
72291
Anatomical terminology
[edit on Wikidata]
A spermatogonium (pl.: spermatogonia) is an undifferentiated male germ cell. Spermatogonia undergo spermatogenesis to form mature spermatozoa in the seminiferous tubules of the testis.
There are three subtypes of spermatogonia in humans:
Type A (dark) cells, with dark nuclei. These cells are reserve spermatogonial stem cells which do not usually undergo active mitosis.
Type A (pale) cells, with pale nuclei. These are the spermatogonial stem cells that undergo active mitosis. These cells divide to produce Type B cells.
Type B cells, which undergo growth and become primary spermatocytes.
A spermatogonium (pl.: spermatogonia) is an undifferentiated male germ cell. Spermatogonia undergo spermatogenesis to form mature spermatozoa in the seminiferous...
A spermatogonial stem cell (SSC), also known as a type A spermatogonium, is a spermatogonium that does not differentiate into a spermatocyte, a precursor...
normal complement of genetic material. In spermatocytogenesis, a diploid spermatogonium, which resides in the basal compartment of the seminiferous tubules...
type Ad spermatogonium divides to produce another type Ad spermatogonium, which can further carry on spermatogenesis, and one type Ap spermatogonium, which...
located within the testes during development and adulthood are called spermatogonium (plural spermatogonia). Female gametogonia, known as oogonium (plural...
DNA copy number/Chromatids in human Process entered by cell Duration spermatogonium (types Ad, Ap and B) germ cells diploid (2N) / 46 2C / 46 spermatocytogenesis...
asexual means through soredia, or sexual means through ascogonium and spermatogonium. The growth rate of lichens in nature is slow, but can be increased...
system (various types) Oogonium/oocyte Germ cells Spermatid Spermatocyte Spermatogonium cell Stem cell for spermatocyte Spermatozoon Granulosa cell In the ovaries...
expression has been shown to be restricted to the earliest state of spermatogonium. GRCh38: Ensembl release 89: ENSG00000171794 – Ensembl, May 2017 GRCm38:...
results in the production of four haploid sperm cells from one diploid spermatogonium. CIB1 has been shown to play a critical role in spermatogenesis by regulating...
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