Paired, pea-shaped bulbourethral glands (or
are located within the urogenital diaphragm on each side of the
Each gland has a short duct that projects into the base of the
penis and enters the
Their secretory product is a
clear, viscous mucin
when mixed with water.
As a component of the seminal fluid, this mucin
and serves as a
lubricant during sexual intercourse.