What is a spermatozoon?

Spermatozoon is a male sex cell or gamete that fertilizes female eggs or eggs in organisms that are sexually reproduced, including all animals and some plants. Unlike most cells that make up multicellular organisms, spermatozoa consists of a head and at least one flagella or tail, allowing them to move separately. The head contains very little cytoplasm compared to other cells and carries very densely packed chromosomes in the core. Like all sex cells, the cells of sperm are haploid and contain only half of the number of chromosomes typical of species.

In mammals, spermatogenesis begins in the seminar vesicles of male testicles. In the presence of high concentrations of testosterone, which begin to occur during adolescence, primary spermatocytes ripen and divide into secondary spermatocytes. The resulting cells are divided into 2 immature sperm cells called spermatides, each becoming a ripe spermatozone.S warm, humid environment,which sperm require for survival and medium through which they can easily move. It also protects cells and helps control the speed at which they move. The energy needed for the whip or flageline movement with which the tail drives each sperm cell through the seed fluid is provided by small cellular structures called mitochondria that surround the upper part of the tail.

For fertilization and reproduction, spermatozoa must be transferred from a male to a woman via a vagina or Cloaca, where glycoproteins on the cell surface prevents the sperm of the immune system. The sperm passes through the female reproductive tract, where one of them penetrates into the protective outer layer of the egg. The species -specific receptors on the surface of the egg and the spermatozoa ensure that sperm cells are generally able to fertilize only eggs from the same species.

in the cell membrane that closes the head and covers most of the ODLasti below it is an inner layer called Acrosome, which plays an important role in fertilization. The egg penetration occurs when the acrosome piercing spermatozoon protrudes with a cell membrane and reacts with the outer layer of the egg and weakens the outer layer. As this acrosomal reaction proceeds, the spermatozoon head is associated with the cell membrane of the eggs and releases its content into the egg. Cores of fuses of sperm and eggs, resulting in a zygot that develops a new organism of the same kind.