A Spermatogonium (plural: spermatogonia) is an intermediary male gametogonium (a kind of germ cell) in the production of spermatozoa. They are the primitive differentiatedmalegerm cells which give rise to primary spermatocytes. Spermatocytes are diploidcells which divide by meiosis to produce the haploidspermatids. A gametogonium (plural gametogonia) is a germ cell that divides into gametocytes. ... A germ cell is a kind of cell that is part of the germline, and is involved in the reproduction of organisms. ... Schematic diagram of a sperm cell, showing the (1) acrosome, (2) cell membrane, (3) nucleus, (4) mitochondria, and (5) flagellum (tail) A sperm cell, or spermatozoon ( spermatozoa) (in Greek: sperm = semen and zoon = alive), is the haploid cell that is the male gamete. ... Differentiation can mean the following: In biology: cellular differentiation; evolutionary differentiation; In mathematics: see: derivative In cosmogony: planetary differentiation Differentiation (geology); Differentiation (logic); Differentiation (marketing). ... Male symbol Male is the sex of an organism, or a part of an organism, which produces sperm. ... A germ cell is a kind of cell that is part of the germline, and is involved in the reproduction of organisms. ... Spermatogenesis refers to the creation, or genesis, of sperm cells, which occurs in the male gonads or testes. ... Diploid (meaning double in Greek) cells have two copies (homologs) of each chromosome (both sex- and non-sex determining chromosomes), usually one from the mother and one from the father. ... Cells in culture, stained for keratin (red) and DNA (green) The cell is the structural and functional unit of all living organisms, and are sometimes called the building blocks of life. ... In biology, meiosis is the process that transforms one diploid cell into four haploid cells in eukaryotes in order to redistribute the diploids cells genome. ... Haploid (meaning simple in Greek) cells have only one copy of each chromosome. ... The term spermatid refers to the haploid male germ cell that results from secondary spermatocyte division. ...
Source: This article includes material from Biology Online.
One daughter cell, known as a Type A spermatogonium, does not participate in spermatogenesis and is needed to ensure that stem cells never run out of supply, which are needed in large quantities since the average male produces trillions of sperm cells throughout his lifetime.
The Type B spermatogonium initiates another mitotic division that results in two daughter cells, each equipped with 2n chromosomes.
The daughter cells of spermatogonium move away from the basal lamina.
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