The frenular delta in human anatomy is the triangular area underneath the penile glans along the penile ventral body, and is composed of a mucosa. The frenulum attaches at the top of the triangle and outlines its sides, which connect with the ridged bands. The delta is highly innervated, and is considered a specific erogenous zone.
- McGrath K. The frenular delta: a new preputial structure. In: Denniston GC, Hodges FM, Milos MF, editors. Understanding Circumcision: A Multi-Disciplinary Approach to a Multi-Dimensional Problem. New York: Kluwer/Plenum; 2001. p. 199-206.
- Winkelmann RK. The erogenous zones: their nerve supply and significance. Mayo Clin Proc. 1959;34(2):39-47. PMID 13645790.
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