Abstract
SUMMARY A modification of Pickworth's method for demonstrating blood‐vessles is described. The intrinsic vessels of the prostate can be divided into an outer or capsular plexus, an intermediate zone of vessles, and a urethral plexus. The outer plexus lies mainly on the lateral surface of the gland, althouth inferiorly an anterior group of vessels is seen. The intermediate zone of vessels comprises those derived from the capsular plexus and a leash of vessles accompanying the ejaculatory ducts and prostatic utricles. The urethral plexus, towards which the intermediate vessels pass, is mainly derived from the capsular vessels. The plexus accompanying the ejaculatory ducts supplies a region of the urethral creast surrouding the entrance of those ducts into the urethra.
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