Graafian follicles, light micrograph

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Graafian follicles, light micrograph

Developing Graafian follicles. Light micrograph of a sectioned human ovary, showing two developing Graafian follicles. A Graafian follicle is a structure in the ovaries from which an ovum (egg cell) is released. It comprises an ovum (inner circle), surrounded by the zona granulosa (purple dots). The pale area in each follicle is the fluid-containing antrum. The cells in zona granulosa secrete follicle stimulating hormone (FSH) and produce oestrogen. FSH stimulates the maturation of the follicle. When mature it releases the ovum, which travels from the ovary down the Fallopian tube to the uterus. Normally, only one ovum is released each month, although several follicles develop each cycle

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6449623

© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Cycle Fertile Fertility Follicle Follicles Graafian Follicle Histological Histology Ovarian Ovary Ovulation Ovum Re Production Reproductive System Light Micrograph Light Microscope

EDITORS COMMENTS
This print showcases the intricate beauty of developing Graafian follicles within a human ovary. The image captures two distinct follicles at different stages of maturation, shedding light on the fascinating process of egg cell release. Each Graafian follicle consists of an inner circle representing the ovum, surrounded by purple dots known as zona granulosa. These cells play a crucial role in secreting follicle stimulating hormone (FSH) and producing estrogen, vital for the maturation and development of the follicle. The pale areas observed within each follicle indicate the presence of fluid-filled chambers called antrums. It is within these spaces that the growing eggs reside before their eventual release during ovulation. Remarkably, while multiple follicles develop during each menstrual cycle, only one ovum is typically released per month. This delicate balance ensures fertility and reproductive success in females. By offering a glimpse into this complex biological process, this micrograph not only highlights the intricacies of female anatomy but also underscores its significance in terms of reproduction and human life. A testament to both scientific exploration and artistic appreciation, this print from Science Photo Library serves as a reminder of nature's incredible design within our own bodies.

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