Male Reproductive System

The males reproductive system produce a special type of cell called sperm cell. The sperm cells are produced by the seminiferous tubules inside the testes.
The scrotum is a structure responsible for holding the testes. It regulates the temperature of the gonads, thus, allowing the production of sperm.
Interstitial cells are the cells responsible for the production of the male hormone testosterone. It lies right next to the seminiferous tubules.
The Sertoli cells are a the ones responsible for nourishing and support the developing sperm cells.
The sperm cells are going to develop fully at a structure called the epididymis, from there it goes on the ductus deferens which will take them to the ejaculatory duct and then the penis.

Seminal Fluid

As the sperm cells passes through the ducts deferens, it is mixed with different fluids.
Seminal vesicles produce a fluid that provide sugar (fructose) therefore energy for the sperm cells. The prostate gland and Cowper's gland produce a alkaline fluid that will protect the sperm from the acid in the urethra.