Page 821 - Atlas of Histology with Functional Correlations
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(8) with a dilation at its distal end before it opens into the prostatic urethra (1).
The epithelium is simple secretory or pseudostratified columnar type. Two
ejaculatory ducts (3) open at the colliculus, one on each side of the utricle (8).
FIGURE 20.16 ■ Prostate gland and prostatic urethra. Stain: hematoxylin and
eosin. Low magnification.
FIGURE 20.17 | Prostate Gland: Glandular Acini
and Prostatic Concretions
A small section of the prostate gland from Figure 20.16 is illustrated at a higher
magnification.
The glandular acini (1) in the prostate gland are highly variable with
normally wide and typically irregular lumina because of the protrusion of the
epithelium-covered connective tissue folds (10). Some glandular acini (1)
contain proteinaceous prostatic secretions (9). Other acini (1) contain prostatic
concretions (4, 6, 8) that are formed by condensed prostatic secretions and
become the characteristic features of the prostate gland. The number of prostatic
820
