Human sperm

Human sperm

P624/0117 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 45.8MB

Downloadable file size: 1.2MB

Price image Pricing

Please login to use the price calculator


Credit: 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.

Keywords: anatomy, human, human body, human spermatozoa, reproduction, reproductive system, sperm, sperm cell, spermatozoa

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.