CLAUS LUNAU / SCIENCE PHOTO LIBRARY CLAUS LUNAU / SCIENCE PHOTO LIBRARY
Sperm cell, computer artwork. This is a mature human sperm cell (spermatozoon), the male gamete (sex cell) in reproduction. A sperm cell is composed of a head (right), a body (centre right) and a tail (centre and left). The head consists of an acrosome (yellow), a cap-like structure that breaks down the barrier around the female sex cell. The nucleus (round) contains the cell's genetic information (chromosomes shown in red). The body of the sperm cell contains mitochondria (green), that produce the energy required for the sperm cell to swim through the female genital tract. The tail contains axial filaments that move and propel the sperm cell forward.
Model release not required. Property release not required.