fertilisation. animation of sperm cells attempting to penetrate a human egg. only one of these sperm cells fertilises the egg. fertilisation occurs when the sperms genetic material (deoxyribonucleic acid, dna) fuses with the eggs dna forming a zygote - sperm 個影片檔及 b 捲影像00:20
human sperm swimming, race; two tailed human sperm top left of frame later in shot, interference contrast - sperm 個影片檔及 b 捲影像00:16
close angle of uterus or reproductive organ. egg cell in foreground bottom left. sperm cells fall or swim down from topcenter toward egg cell. human body. - sperm 個影片檔及 b 捲影像00:24
california: los angeles: int liquid nitrogen vapour around "sperm tank" container dr robert graham and assistant opening canister, obscured by vapour... - sperm 個影片檔及 b 捲影像02:04
sperm donation; england: newcastle university: int microscopic shot of sperm swimming fertility scientists workig in lab - sperm 個影片檔及 b 捲影像00:29
artificial insemination: donor children not told their origins; lib technician removing lid from container of liquid nitrogen container carrying... - sperm 個影片檔及 b 捲影像00:24
close angle of uterus. sperm enter screen from right, swims across to left, camera pans to follow but stops and sperm exit screen left. human body. - sperm 個影片檔及 b 捲影像00:31
doctors call for men to able to donate sperm after they die; england: london: gir: int dr larisa corda live studio interview sot. - sperm 個影片檔及 b 捲影像03:08
black and white animation of spermatozoa mving from the testes to the seminal vesicles / sperm mixing with semen and traveling through the penis /... - sperm 個影片檔及 b 捲影像00:44
father loses ivf damages claim over daughter conceived after split from former partner; r08080806 / 8.8.2008 london: cloud of dry ice emerging as... - sperm 個影片檔及 b 捲影像00:07
artificial insemination: donor children not told their origins; lib int top removed from container of liquid nitrogen used to store frozen sperm - sperm 個影片檔及 b 捲影像00:03
national sperm bank opens in birmingham; t17070450 / tx file fertilisation clinic: int microscopic shot egg being pierced, injected with sperm - sperm 個影片檔及 b 捲影像00:04
living spermatozoa cells, machine automatically filling glass containers w/ liquid & melting top w/ heat to seal, many sealed bottles, storage tank... - sperm 個影片檔及 b 捲影像00:36
human oocyte cryopreservation, intracytoplasmic sperm injection on september 17, 2014 in new york city. - sperm 個影片檔及 b 捲影像00:13
a sockeye salmon interrupts a pair laying and fertilizing eggs on a riverbed. available in hd. - sperm 個影片檔及 b 捲影像00:30
cu rear view of mating european frogs, expressing spawn and sperm, united kingdom - sperm 個影片檔及 b 捲影像00:07