Human fertilisation
Wall Art and Photo Gifts from Science Photo Library
Human fertilisation
Sperm fertilising egg. Computer illustration of sperm cells (at right) approaching a human egg (at left). One of the sperm is fertilising it. Women usually produce one large egg (ovum), whereas men release some 300 million much smaller sperm (spermatozoa) which travel with whiplash movements of their tails through the uterus to reach the egg. A few hundred sperm survive this journey and encounter the egg in the fallopian tube. Only one sperm can penetrate the eggs thick outer layer (zona pellucida) and fertilise it by fusing with its DNA (deoxyribonucleic acid) genetic material. When this occurs, the egg membrane forms a barrier to other sperm
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6454633
© PASIEKA/SCIENCE PHOTO LIBRARY
Beginning Beginnings Egg And Sperm Art Fertilisation Fertilization In Human Fertilisation Ovum Re Production Sperm Spermatozoa
EDITORS COMMENTS
This print from Science Photo Library beautifully captures the intricate process of human fertilization. In this computer illustration, we witness the remarkable journey of sperm cells as they approach a human egg. The image showcases the stark contrast between one large egg produced by women and the staggering number of 300 million smaller sperm released by men. With whiplash movements of their tails, these resilient spermatozoa navigate through the uterus in search of the awaiting egg. Only a few hundred survive this arduous expedition and ultimately encounter the egg in the fallopian tube. However, only one lucky sperm can penetrate the thick outer layer known as zona pellucida to fuse with its DNA genetic material. The moment when fertilization occurs is truly extraordinary - it marks a significant milestone where life begins. As soon as fusion takes place, an impenetrable barrier forms around the egg membrane, preventing any other potential suitors from entering. This artwork not only showcases our complex reproductive anatomy but also highlights how delicate and precise nature's design is when it comes to creating new life. It serves as a reminder that within every individual lies an incredible story that began with this miraculous union between an eager sperm cell and a receptive egg.
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