Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding, in most cases, mitochondrial DNA).
Sperm are male sex cells. You start to produce sperm around puberty. Learn more about their anatomy and function.
Sperm cells are found in semen. They come in two types and carry an X or Y chromosome. Here, learn how sperm looks and how many men have.
How Is Sperm Created? What is Sperm? Sperm is the male reproductive cell or germ cell produced and released by the male reproductive organs. These cells are essential for fertilization and the creation of new life. Sperm cells are tiny, with an average size of median length (4.3 μm), and width (2.9 μm). Each mature sperm cell is composed of a head, midpiece, and tail. The sperm head contains ...
Sperm is a reproductive cell created in the testicles. Males produce millions of these cells each day, but it takes only one sperm to fertilize an egg. This article outlines what sperm are, where ...
There are huge gaps in what we know about sperm, from how they navigate to why sperm counts are tumbling. The BBC unravels why we know so little about this perplexing cell.
As the male reproductive cell, sperm is a key aspect of human fertility. In this article, you’ll find a brief overview of the male reproductive system and answers to questions like, How is sperm ...