Science Source Feb 2010

EN_90286490_0459

30,00 EUR Private use
Making print for private purpose, storage in computer memory, no distribution rights.
40,00 EUR Internet - private use
Strictly for editorial, single use on a personal (nonprofit) web site, Internet portal, social media (Facebook, Instagram etc.), blog for 1 year. Not for resale. Maximum picture size 2000px.
75,00 EUR Internet commercial use
Strictly for editorial, single use on a commercial web site, Internet portal, social media (Facebook, Instagram etc.), blog for 1 year. Not for resale. Maximum picture size 2000px.
90,00 EUR Print use
Strictly for editorial, single use, inside of newspaper, magazine, book (including digital version), one edition, one single country. Not for resale.

Gross prices

caption

Scanning electron micrograph (SEM) of a sperm on the surface of a human egg (ovum) during fertilization. The egg has a furry surface which attracts sperm. The sperm's tail enables it to swim and reach the female ovum. The head is capped by the acrosome that releases enzymes that assist in the penetration of the egg during fertilization. Only a single sperm succeeds in fertilization. Rapid chemical changes thicken the outer membrane surrounding the ovum and form a barrier to competing sperm. Once fertilized, the egg begins the process of cell division.

headline Science Source Feb 2010

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Don W. Fawcett

original transmission reference 9e1280

weight 2,71MB

size 34cm x 43cm by 300dpi

keywords - Show

ACROSOME, AND, ASSIST, ATTRACTS, BARRIER, BEGINS, BY, CAPPED, CELL, CELLULAR, CHANGES, CHEMICAL, COMPETING, CONCEPTION, DIVISION, DON, DURING, E, EGG, ELECTRON, ENABLES, ENZYMES, FAWCETT, FEMALE, FERTILIZATION, FERTILIZE, FERTILIZED, FERTILIZING, FORM, FURRY, HAS, HEAD, HISTOLOGICAL, HISTOLOGY, HUMAN, IMAGING, IN, IS, IT, MEDICAL, MEMBRANE, MICROGRAPH, MICROGRAPHY, MICROSCOPY, OF, ON, ONCE, ONLY, OUTER, OVUM, PENETRATION, PROCESS, RAPID, REACH, RELEASES, REPRODUCTION, REPRODUCTIVE, SCANNING, SCIENCE, SEM, SINGLE, SPERM, SUCCEEDS, SURFACE, SURROUNDING, SWIM, SYSTEM, TAIL, THAT, THE, THICKEN, TO, WHICH,