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 | 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: How Long Sperm Live, Sperm Count, and More - WebMD
网页2023年12月22日 · A normal sperm count ranges from 15 million to over 200 million sperm per milliliter of semen. If your sperm count drops below 15 million/mL, you may have trouble impregnating your partner.
Sperm: Everything you need to know - Medical News Today
网页2020年3月4日 · 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,...
How often should a man release sperm? - Medical News Today
网页2024年5月21日 · This article looks at how often a male should release sperm, possible health benefits of ejaculation, and whether there is a link between ejaculation and cancer.
What to Know About How Sperm Is Produced - WebMD
网页Men produce millions of gametes called sperm. Producing sperm is the main function of the male reproductive system. Keep reading to learn about how your body makes sperm, what it is made of,...
How Is Sperm Produced? - Healthline
网页2018年6月13日 · How is sperm produced? There is a system of tiny tubes in the testicles. These tubes, called the seminiferous tubules, house the germ cells that hormones — including testosterone, the male sex ...
Sperm: Cells, How Long It Lives, Anatomy & Function - Cleveland …
网页2024年7月25日 · Sperm. Sperm are male sex cells with three main parts: a head, midpiece and tail. People assigned male at birth (AMAB) start to produce sperm around puberty. Your body releases tens of millions of sperm when you ejaculate. But it only takes one sperm to fertilize an egg cell.
Sperm: X and Y Chromosomes, Quantity, Inside Body - Verywell …
网页2024年6月3日 · This article explains what sperm are, including their types and composition, their role in reproduction, and how many sperm cells are needed to achieve pregnancy. It also explores ways to improve sperm counts if you are faced with infertility.
13 Facts About Semen and Sperm: Composition, Volume, and …
网页2020年8月31日 · Semen is a fluid that contains sperm and fluids from the prostate, seminal vesicles, and bulbourethral glands. It helps sperm travel to an egg for fertilization.