Plate 14.275 Seminal Vesicle
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Monkey, 10% formalin, H. & E., 269 x.
The complex ramifications of the mucosa are shown; the folds are lined by a columnar to pseudostratified columnar epithelium. Epithelial development is androgen-dependent. The height of the epithelium in this specimen suggests ample hormonal stimulation and active secretion. Post-mortem migration of spermatozoa (asterisks) into the recesses and pockets formed within the mucosal lining gave rise to the earlier erroneous interpretation that the seminal vesicle serves as a reservoir or storage depot for sperm. The gland is in fact a major secretory accessory sex gland, the secretions of which, in man, contribute the majority of the seminal volume.
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