The human penis is a male body part found on the outside of the body. It is used for urination and for sexual intercourse. The main sexual function of the penis is to be inserted into a female 's vagina and deliver semen which may cause pregnancy. The penis also provides pleasure during other types of sexual activity, including foreplay, oral sex, and solo sex (which doctors say is normal and healthy). There are many slang words for penis . Like dick and cock. A euphemism for penis is male ... The penis terminates in an oval or cone-shaped body, the glans penis , which contains the exterior opening of the urethra. The glans penis is covered by a loose skin, the foreskin or prepuce, which enables it to expand freely during erection. Penis , the copulatory organ of the male of higher vertebrates that in mammals usually also provides the channel by which urine leaves the body. The corresponding structure in lower invertebrates is often called the cirrus. Learn about the anatomy and physiology of the penis . Together with the testes and surrounding structures, the penis functions as part of the male reproductive system. The main parts of the penis are the root, body, the epithelium of the penis , including the shaft skin, and the foreskin covering the glans.
