The human penis<>contains<>the urethra, as well as three cylinders of spongy erectile tissue
The penis consists mainly of three cylindrical bodies of erectile tissue ( spongy tissue full of tiny blood vessels ) that run the length of the organ .
The human penis contains the urethra, as well as three cylinders of spongy erectile tissue.
The human penis contains the urethra, as well as how many cylinders of spongy erectile tissue?