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LM of human sperm fertilising an egg
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LM of human sperm fertilising an egg
Sperm fertilising egg. Light micrograph of a human egg with sperm at its surface attempting to penetrate and fertilise it. The large size of the rounded egg is seen in relation to the tiny sperm at upper frame. Around the egg is a thick zona pellucida layer. Women usually produce one egg (ovum) for fertilisation, whereas men release some 300 million sperm (spermatozoa) which travel with whiplash movements of their tail through the uterus to reach the egg. Only one sperm succeeds in penetrating the eggs wall and fertilises the egg by fusing with its nucleus. When this occurs, the egg membrane forms a barrier to other sperm. Magnification: x260 at 5x7cm size. x130 at 35mm size
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6455823
© DR YORGOS NIKAS/SCIENCE PHOTO LIBRARY
Egg And Sperm Fertilisation Fertilization In Human Fertilisation Ovum Re Production Sperm Spermatozoa Light Micrograph
EDITORS COMMENTS
This print from Science Photo Library showcases the intricate process of human fertilization. The image depicts a light micrograph capturing the moment when a sperm attempts to penetrate and fertilize an egg. The stark contrast between the large, rounded egg and the minuscule sperm at its surface is awe-inspiring. The photograph highlights the importance of timing and precision in reproduction. While women typically produce only one egg for fertilization, men release an astounding 300 million spermatozoa during ejaculation. These tiny cells embark on a journey through the uterus, propelled by their whiplash-like tail movements, with hopes of reaching and penetrating the egg. However, amidst this fierce competition, only one lucky sperm will succeed in breaking through the eggs' protective wall to fuse with its nucleus. Once this fusion occurs, a barrier forms around the egg membrane preventing any other sperm from entering. With magnification at x260 for a 5x7cm size or x130 for 35mm size, this extraordinary photograph allows us to marvel at nature's wonders up close. It serves as a reminder of both our biological complexity and our capacity for creation - encapsulating key elements such as human reproduction, anatomy, ovum development, fertilization processes within humans using light micrographs.
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