Sperm cell anatomy. Cutaway computer artwork showing the internal structure of a sperm cell (spermatozoon),the male sex cell. Each sperm cell consists of a head (upper right),mid-piece (centre left) and tail (lower left). The head contains the acrosome,which will pierce the egg's membrane during fertilisation,and the nucleus,within which is the genetic material. The mid-piece contains the centriole and numerous mitochondria (disc-shaped) that provide the energy necessary for the cell to swim. The tail contains microtubules arranged in a central axial filament (axoneme) that spins in a twisting motion to propel the sperm towards the egg for fertilisation | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Vernon, Tim |
Taille de l’image : | 3471 px × 5078 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |