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Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells Atlas of Microscopic Anatomy: Section 14 - Male Reproductive System

Plate 14.275 Seminal Vesicle

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger, Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed


Plate 14.275 Seminal Vesicle

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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