The septum glandis, also septum of the glans, refers to the
fibrous partition of the ventral aspect of the
glans penis that separates the two glans wings in the ventral midline.[1] The septum extends from the
urethral meatus through the glanular urethra (
fossa navicularis) and ends in the
tunica albuginea of the
human penis. Externally it is attached to the
frenulum which extends lower on the neck of the penis.[2]
The septum glandis results during the
embryonic development of the male fetus as the two sides of the
genital tubercle merge in the midline without fusing, to form a hollow tube that encloses the
male urethra.[3] The two sides of the preputial lamina that will become the
prepuce approach on the underside and remain separated by a thin tissue of
mesenchyme that will form the frenulum.[4] Ventrally, the two wings of the
corona do not fully attach to each other, remaining separated at the subglanular level.[2]