STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Seminal vesicle. Light micrograph of a section through the seminal vesicle showing the complex mucosal folding. The seminal vesicles are a pair of glands situated on each side of the male urinary bladder that secrete seminal fluid and nourish and promote the movement of spermatozoa through the urethra. Magnification: x50 when printed at 10 centimetres.
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