Lymphatic drainage from the prostate is to the obturator, hypogastric and external iliac nodes (Figure 29.2).
The seminal vesicles are paired, convoluted glands measuring approximately 5 cm in length and lying on the posterior wall of the prostate. Their function is to add a significant volume of alkaline secretion to the ejaculate, which promotes sperm motility and survival. Cowper's (bulbourethral) glands are paired, pea-sized, tubular glands found periurethrally immediately distal to the prostate.
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