Plate 14.273 Seminal Vesicle
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed
Monkey, 10% formalin, H. & E., 21 x.
The seminal vesicles arise as tortuous diverticula of the vas deferens and therefore present histologically as multiple sections through a tubular structure. The wall consists of adventitia, muscularis, and elaborate mucosa, thrown into several orders of branching folds. The folds, like villi of the intestinal tract, are underlaid by a tunica propria of loose connective tissue. Secretions produced by the epithelial cells are delivered to a central luminal channel*, the extent of which is largely obscured by the tortuosity of the tube. Lobulation of the organ by septa from the adventitia is incomplete and inconspicuous. See Plate 275 for higher power detail of the mucosa.
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