male sperm cell
21Male contraceptive — Male contraceptives include condoms, withdrawal (although medical professionals do not regard this as an effective method of contraception), and vasectomy.[1] In other animals, castration is commonly used for contraception. Other forms of male… …
22Sperm donation — is the provision (or ‘donation’) by a man, (known as a ‘sperm donor’), of his sperm, with the intention that it be used to impregnate a woman who is not usually the man s sexual partner, in order to produce a child. A sperm donor is the natural… …
23Male egg — Male eggs are the result of a process in which the eggs of a female would be emptied of their genetic contents (a technique similar to that used in the cloning process), and those contents would be replaced with male DNA. Such eggs could then be… …
24Male oral contraceptive — A male oral contraceptive is not commercially available to the public, although several forms are in various stages of research and development.Fact|date=October 2007 Botanical compounds*In 1980, a test was successfully performed on male rats… …
25Male reproductive system (human) — This article is about the human male reproductive system. For the male reproductive systems of other organisms, see Sexual reproduction. Male reproductive system (human) Drawing of the Male Internal Sexual Anatomy Latin …
26Sperm bank — A sperm bank or cryobank is a facility that collects and stores human sperm mainly from sperm donors, primarily for the purpose of achieving pregnancies through third party reproduction, notably by artificial insemination. Sperm donated in this… …
27Cell biology — Not to be confused with Cell (biology). Cell research redirects here. For the journal, see Cell Research (journal) …
28Sperm — A sperm is the male "gamete" or sex cell. It combines with the female "gamete," called an ovum, to form a zygote. The formation process is called "fertilization." (see ovum, zygote). * * * SYN: spermatozoon. [G.… …
29Male — The traditional definition of male was "an individual of the sex that produces sperm" (or some such). However, things are not so simple today. Male can be defined by physical appearance, by chromosome constitution (see Male chromosome… …
30sperm — [[t]spɜ͟ː(r)m[/t]] sperms (sperm can also be used as the plural form.) 1) N COUNT A sperm is a cell which is produced in the sex organs of a male animal and can enter a female animal s egg and fertilize it. Conception occurs when a single sperm… …
