Methylene Blue, methylthionine chloride or 3,7-bis(dimethylamino)phenothiazin-5-ium chloride is a chemical compound used as a dye and medication for Gram's stain, Wright stain[?], and the treatment of metoxyhemoglobinemia.
... muscle that allows voluntary control over urination.
In the human female, the urethra is about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris ...