What is spermatogenesis?
spermatogenesis is the process of manufacturing sperm cells or the development of immature germ cells known as spermatogonia into ripe sperm cells called spermatozoa . A sperm cell is a male reproductive cell that fertilizes female eggs in sexual reproduction. The ability of the male reproduction depends on the high quality and quantity of sperm; Therefore, spermatogenesis has been constantly from puberty until death. The phases included in this process are spermatocytogenesis, spermatidogenesis and spermiogenesis.
Spermatogenesis begins in seminar tubules, which, depending on their type, look like a small, straight or twisted noodles in the testicles. The interior of the seed tubules are lined with sertoli cells and spermatogonia. Sertoli cells are often referred to as "nurses" cells because they help in the development of sperm by consuming spermatogenesis waste materials and directing cells through tubules channels.
During esmatocytogenesis, spermatogonia is divided by mitosisto create two diploid cells called primary semen . Mitosis is a type of cell division in which the parent cell grows and then divided in half to form two identical daughter cells. Primary spermatocytes that have twice the amount of genetic material as normal cells must then undergo meiosis I.
In this type of division, the parent cell is divided into two diploid cells that have half of chromosomes or genetic material as a parent cell. The resulting secondary spermatocytes that have a normal amount of chromosomes must then go through Meiosis II to form spermatides. This short part of spermatogenesis is called spermatidogenesis.
spermatides have only half of the total number of chromosomes. This is because the sperm is connected to an egg that also contains only half the amount of non -cherical chromosomes make up a whole set of chroMoster made from both male and female genes. Random halves and chromosome pairing increases genetic variability, an important component in evolution.
During spermogenesis, the final phase of spermatogenesis, sperm cell grows the tail and achieve full maturation. In the first phase of this process, in the Golgi phase, the genetic material of the spermatides is firmly wrapped together to form a core and spermatide subject to structural change. While it was previously circular, the middle section begins to bulge and the cell spreads at one end to form a Golgi apparatus that creates chemicals called enzymes. Furthermore, the Golgi apparatus surrounds the core to form an acrosomal cap during the cap phase. Enzymes released by acrozomal closure break the wall of the female egg during fertilization, allowing the core of the sperm to enter the egg and connect to the core of the egg.
In the following acrosomal phase, the sperm cell grows the tail that helps it move. The sperm cell rotates in the wall of the seed tubules so that its tail of the shiftIt eats towards lumen or interior space of the tube. With the help of a hormone called testosterone, the cells consume sertoli excess cellular materials in the maturation phase. In another process known as sperm -sperm sperm, the ripe sperm is released into the lumen and driven into the epididymis, a small, curled tube located between the rear of the testicles and vas deferens. Here, the sperm becomes movable or capable of moving on their own and prepared for ejaculation to a woman during sex.