Anatomy and Functions of the Male Foreskin http://www.noharmm.org/anatomy.htm
To understand the function of the prepuce, it is necessary to understand the function of the penis. While it is commonly recognized that the penis has two functions - urination and procreation - in reality, it is essential only for procreation, since it is not required for urination.
Male Sexual Anatomy - The Foreskin http://net.indra.com/~shredder/intact/index.html
The Foreskin - What is it and how it works - Pictures and Diagrams - Circumcision Issues - Foreskin Restoration - The Intact Penis... Need to brush up on your anatomy of what the foreskin is and how it works? This site contains explicit pictures with all the details, along with guidelines on caring for intact children.