This image is not available for purchase in your country.

Human sperm

Human sperm

P624/0117

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

Sperm cells. Coloured scanning electron micrograph (SEM) of human sperm cells (spermatozoa). These tiny male sex cells are produced in the testes, and are responsible for fertilisation of the female egg (ovum). Each sperm has a rounded head which contains the male hereditary material (DNA) and a long whip-like tail that propels it along. Sperm production commences at puberty and is dependent on the male sex hormone testosterone. Some 300 million sperm are released by the male during ejaculation, while the female usually produces one large egg at a time. Only one sperm cell can fertilise the egg. Magnification unknown.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}