The production of spermatozoa is continuous throughout a man's life, however each spermatozoon has a limited life-span. Within the male testicle they last about a month.
Spermatozoon. -The male sex cell. (Plural-Spermatozoa.)
Sphincter muscle. -A circular muscle at the end of the bowel which controls the emptying of the bowel.
See ultrasound Speculum The instrument inserted in the vagina which allows the cervix to be seen Sperm The common term for a spermatozoon, the mature male reproductive cell or gamete, produced in the testicles. Sperm are relased through ...
This type of twinning occurs with one egg (ovum) and one sperm (spermatozoon). The inner cell mass that develops from a single fertilized ovum separates into two masses, each of which gives rise to a complete embryo.
INTERVENTION(S): Evaluation of sperm cell morphology according to World Health Organization criteria, measurement of Gd binding by an immunocytochemical staining method, scoring of Gd binding per spermatozoon, ...
Pregnancy occurs as the result of the female gamete or oocyte (egg) being penetrated by the male gamete spermatozoon in a process referred to, in medicine, as "fertilization", or more commonly known as "conception".
INTRACYTOPLASMIC SPERM INJECTION (ICSI): Microscopically injecting one spermatozoon into the cytoplasm of each mature oocyte to facilitate fertilization.
Gamete
The male and female reproductive cells - the sperm (spermatozoon) and the egg (ovum).
 See also: Sperm, Pregnancy, Multip, Egg, Urine
  
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