Complex sentence: In some cases, the ridged band is referred to as the frenar band, which refers also to the inner surface of the foreskin that helps contract the tip of the foreskin allow it to remain positioned over the glans.
Split into simpler sentences: In some cases, the ridged band is referred to as the frenar band. The frenar band helps to contract the tip of the foreskin so that it remains positioned over the glans.