Sperm | Definition, Function, Life Cycle, & Facts | Britannica
网页Sperm, male reproductive cell, produced by most animals. In higher vertebrates, especially mammals, sperm are produced in the testes. The sperm unites with (fertilizes) the ovum (egg) of a female to produce a new offspring. Mature sperm have two distinguishable parts, a head and a tail.
Sperm - Wikipedia
网页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 Cell - The Definitive Guide - Biology Dictionary
网页2021年5月15日 · A sperm cell or spermatozoon is a gamete (sex cell) produced in the male reproductive tract. It is a motile cell with a single aim – to fertilize a female egg. Each sperm cell contains the entire genome of the male that produces it.
Sperm: Cells, How Long It Lives, Anatomy & Function - Cleveland Clinic
网页2024年7月25日 · Sperm are tadpole-shaped microscopic male sex cells. In humans, when a sperm cell joins with (conception or fertilization) a female sex cell (ovum or egg cell), the fetal development process begins. This often happens after vaginal intercourse. But it can also occur through assisted reproductive technologies, such as …
Spermatozoa: Anatomy and function - Kenhub
网页2024年2月27日 · The term spermatozoa (singular: spermatozoon), also known as sperm, refers to the male sex cells or gametes. They are formed through the process of spermatogenesis, which begins at puberty with the proliferation progenitor (stem) …
Sperm: Everything you need to know - Medical News Today
网页2020年3月4日 · Sperm cells are male reproductive cells that originate in the testicles. Sperm cells swim to and fertilize a female reproductive cell called an oocyte, or egg.
Sperm - Molecular Biology of the Cell - NCBI Bookshelf
网页Typical sperm are “stripped-down” cells, equipped with a strong flagellum to propel them through an aqueous medium but unencumbered by cytoplasmic organelles such as ribosomes, endoplasmic reticulum, or Golgi apparatus, which are unnecessary for the task of delivering the DNA to the egg.
Sperm biology and male reproductive health | Scientific …
网页2020年12月14日 · Sperm are unique cells, produced through the complex and precisely orchestrated process of spermatogenesis, in which there are a number of checkpoints in place to guarantee delivery of a...
On the Origin and Evolution of Sperm Cells - PMC - National …
网页2022年12月30日 · Sperm cells have intrigued biologists since they were first observed nearly 350 years ago by Antonie van Leeuwenhoek and Johan Ham. The discovery of these ‘animalcules’ (i.e., spermatozoa) launched the field of sperm biology, and the subsequent three and half centuries of inquiry into this small, highly specialized cell has revolutionized ...
Sperm biology and male reproductive health - PMC - National …
网页2020年12月14日 · Sperm are unique cells, produced through the complex and precisely orchestrated process of spermatogenesis, in which there are a number of checkpoints in place to guarantee delivery of a high-quality and high-fidelity DNA product.
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