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Each secondary spermatocyte will form two spermatids after meiosis II. [1] Although spermatocytes that divide mitotically and meiotically are sensitive to radiation and cancer, spermatogonial stem cells are not. Therefore, after termination of radiation therapy or chemotherapy, the spermatognia stems cells may re-initiate the formation of ...
Spermatocytogenesis is the male form of gametocytogenesis and results in the formation of spermatocytes possessing half the normal complement of genetic material. In spermatocytogenesis, a diploid spermatogonium , which resides in the basal compartment of the seminiferous tubules, divides mitotically, producing two diploid intermediate cells ...
Complete diagram of a human spermatozoon Schematic of subcellular structures in a murine spermatid being formed showing the formation of the residual body and acrosomal cap. The process of spermiogenesis is traditionally divided into four stages: the Golgi phase, the cap phase, formation of the tail, and the maturation stage.
Schematic diagram of Spermatocytogenesis. Spermatocytogenesis is the male form of gametocytogenesis and involves stem cells dividing to replace themselves and to produce a population of cells destined to become mature sperm.
Gametogenesis is the formation or production of gametes (taking place during meiosis). The development and maturation of sex cells also takes place during meiosis. Gametogenesis is also the process of formation in male and female gametes that occur in the gonads (ovary and testis). Both male and female produce gametes.
A spermatogonium (plural: spermatogonia) is an undifferentiated male germ cell.Spermatogonia undergo spermatogenesis to form mature spermatozoa in the seminiferous tubules of the testicles.
CD59, a surface molecule on SCs and a member of the complement regulatory proteins (CRP), inhibits the last step of the complement cascade, the formation of the membrane attack complex. [ 20 ] Clusterin, a soluble molecule with functions similar to CD59, forms a complex with Granzyme B and inhibits activation of apoptosis by T-lymphocytes or NK ...
The first phases involves the fetal and neonatal phases of germ cell development that lead to the formation of the SSCs. The second phase is spermatogenesis , which is a cycle of regulated mitosis , meiosis and differentiation (via spermiogenesis ) leading to the production of mature spermatozoa , also known as sperm cells.