Penile Anatomy

To help us understand what it is we are going to be stretching and expanding, let’s first take a look at the structure of the penis in detail.

The Structure of the Penile Sheath

Penis cross section

The layers of the penile shaft from the outside to the inside are the:

  1. Skin – The epidermis and dermis (This is primarily where the new skin is going to be grown during restoration)
  2. Superficial (Dartos) fascia – a.k.a. loose areolar [small pigmented circular layer] This loose connective tissue is connected to the dermis which enables the extraordinary mobility of the penile skin — which is also intimately connected with the Dartos-Peripenic muscle layer and most superficial veins).
  3. Areolar tissue
  4. Deep (Buck’s) Fascia penis – Condensed connective tissue which surrounds both the corpora cavernosa and corpora spongiosum, separates the superficial veins from the deep veins and joins the tunica albuginea [a strong very elastic, white fibrous coat, forming a sheath] at the sulcus).
  5. Tunica albuginea – Very dense connective tissue that is almost pure collagen, surrounds each corpus cavernosum penis and therefore also forms the median septum, provides strength against over-inflation [e.g. re-enforced garden hose] and therefore determines maximum penile size).
  6. From there in, it is the erectile core, the corpus cavernosa and related nerves and blood vessels as shown in the diagram

The Frenular Delta (36K, PDF format).
This paper describes in detail the anatomy and function of the various parts of the intact penis, in particular the foreskin and the frenulum on the underside of the penis.

Anatomy and  Histology of the Penile and Clitoral Prepuce in Primates (189K, PDF format).
This paper describe the anatomy of the foreskin and compares it to other primates, showing in particular how important it is in humans and how it differs from other primates.

Scroll to Top