Here is a partial list of the ethnic groups of Gabon by province.
Estuaire Haut Ogooué Moyen Ogooué Ngounié
Ogooué-Ivindo
Ogooué-Lolo Ogooué-Maritime Woleu Ntem
... both sexes, to pass urine to the outside, and also a reproductive function in the male, as a passage for sperm. The external urethral sphincter is the skeletal muscle ...