Slide LU172 [Penis, human child]. Note the three cylinders of erectile tissue: the two corpora cavernosa and the single corpus spongiosum containing the penile urethra. Various tunics are present, the tunica albuginea representing one. The dorsal portion of the outer connective tissue contains numerous blood vessels and nerves. The penis will be studied further.
Cross section of human penis: 1. Corpus spongiosum with penile (spongy) urethra; 2. Corpora cavernosa (pl); 3. Dorsal vein (enlarged)