Sperm cells, illustration

Numéro d’image : 13376779
Sperm cells, illustration
Illustration of sperm cells, or spermatozoa. These are the male sex cells. They are produced in the testes and are responsible for fertilisation of the female ovum (egg). Each sperm consists of a head that contains the genetic material, and a tail that beats to propel the sperm. When a man ejaculates he releases millions of sperm cells, which travel along the female reproductive tract, through the cervix to the uterus (womb) and fallopian tubes, where one may fertilise an ovum. The tip of the head, the acrosome, contains enzymes that are released to help the sperm penetrate the egg.
Licence : Droits gérés
Crédit: Science Photo Library / Bavosi, John
Taille de l’image : 6385 px × 4486 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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