Cross-section illustration of the human glans penis.
Theseptum glandis, alsoseptum of the glans, refers to thefibrous partition of the ventral aspect of theglans penis that separates the two glans wings in the ventral midline.[1] The septum extends from theurethral meatus through the glanular urethra (fossa navicularis) and ends in thetunica albuginea of thehuman penis. Externally it is attached to thefrenulum which extends lower on the neck of the penis.[2]
The septum glandis results during theembryonic development of the male fetus as the two sides of thegenital tubercle merge in the midline without fusing, to form a hollow tube that encloses themale urethra.[3] The two sides of the preputial lamina that will become theprepuce approach on the underside and remain separated by a thin tissue ofmesenchyme that will form the frenulum.[4] Ventrally, the two wings of thecorona do not fully attach to each other, remaining separated at the subglanular level.[2]