The arrow points to the boundary between the<unk>  and the true skin of the foreskin. The<unk>  is a<unk>  of mobile skin at the most distal end of the foreskin. It is part of the akroposthion: the portion which extends beyond the glans. It has, especially in regard to phimosis and preputioplasty, been called the preputial ring or phimotic ring. More particularly, it refers to the transitional area from the external to the internal surface of the prepuce, or foreskin. Rich in Meissner's corpuscles, the area is usually described as highly erogenous. Along with the frenulum of the penis, it is considered to be the most sensitive part of the penis to fine-touch. It was discovered by Canadian pathologist and medical researcher John Taylor in 1991 and first anatomically and histologically detailed in the British Journal of Urology in 1996. The structure is generally believed to be important in male sexual sensation and reflexes. Most or all of the<unk>  is removed by male circumcision due to its position on the prepuce. Efforts to regenerate the<unk>  are presently underway by scientists.
Ridged band
Loop mark
Wale mark
Grand Rounds
Stenvers projection
Parasternal heave
Stereoblindness
Maddox wing