Plate 14.276 Prostate Gland
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Human, 10% formalln, H. & E., 162 x.
Stroma: Abundant and continuous with the gland capsule, it constitutes one third to one fourth of the gland volume and is composed of fibroelastic connective tissue intermixed with smooth muscle fibers. Glands are embedded in the stroma.
Tubuloalveolar glands: Irregular, large lumen, widely spaced tubules with alveolar extensions, which vary greatly in shape and size. Epithelial lining in tissue sections is simple cuboidal to columnar in shape, depending upon physiological state.
Prostatic concretions: Corpora amylacea, acidophilic condensed secretions of prostatic glands. They may be lamellated and increase in number with advancing age. Source of prostatic calculi.
The prostate is located at the origin of the urethra (which it surrounds), adjacent to the urinary bladder. The prostate secretes a thin, opalescent, slightly acid fluid, which contains several enzymes, including diastase and proteases, and citric acid. The smaller prostatic concretions are found in the prostatic fluid.
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