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. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: Differentiation. 2019 Sep 6;110:49–63. doi: 10.1016/j.diff.2019.07.004

Figure 1.

Figure 1.

The mouse penile glans (A) lies within an extensive preputial space defined by the hair-bearing external prepuce, which forms the prominent elevation in the perineum (C). Comparison of (A & B) suggests homology between the human prepuce and the mouse “internal prepuce” (both red) in so far as both are integral to the distal aspect of the penis and encircle the glans. (C & D) Side views of male (C) and female (D) mouse perineal appendages (labeled external genitalia). The MUMP (male urogenital mating protuberance) is a fibrocartilaginous process that extends ~1mm beyond the urethral meatus in mice (A).