尿道海綿体白膜Tunica albuginea of corpus spongiosum; Tunica albuginea of male urethra; Tunica albuginea of penis(Tunica albuginea corporis spongiosi)
尿道海綿体白膜【にょうどうかいめんたいはくまく】 More delicate connective-tissue sheath surrounding the corpus spongiosum. It is mainly composed of an inner circular fiber layer.(尿道海綿体白膜は陰茎海綿体白膜にくらべ、やや発達が弱い。)