Cowper's gland
In the anatomy of the male human body, the bulbourethral glands (or Cowper's glands) are two small, rounded, and somewhat lobulated bodies, of a yellow color, about the size of peas, placed behind and lateral to the membranous portion of the urethra, between the two layers of the fascia of the urogenital diaphragm. They lie close above the bulb, and are enclosed by the transverse fibers of the pre-ejaculatory fluid or Cowper's fluid (colloquially known as "pre-cum") which is generated upon sexual arousal.
Cowper's glands in males are homologous to Bartholin's glands in females.
Structure
Each gland is made up of several lobules, held together by a fibrous investment. Each lobule consists of a number of acini, lined by public domain text of the 1918 edition of Gray's Anatomy, and so may not reflect modern anatomical knowledge -- please update as necessary
