lacunae urethrales urethrae masculinae

[TA] urethral lacunae of male urethra: small depressions or pits in the mucous membrane of the urethra, with their openings usually directed distally; some are openings of ducts of the urethral glands. The largest one, at the distal end, is the lacuna magna. Called also lacunae of Morgagni and urethral lacunae of Morgagni.