The perineal region is that part of the trunk below the pelvic diaphragm. It is diamond shaped and has the same boundaries as the pelvic outlet. It is divided into an anterior, urogenital triangle and a posterior, anal triangle.
Definition for &QUOT;Quasar&QUOT; an incredibly distant, and thus old, celestial objectâ¦ View More
Quasars. Astronomers first knew they had a mystery on their hands in the 1960s when they turned the first radio telescopes to the sky. They detected the radio waves streaming off the Sun, the Milky Way and a few stars, but they also turned up bizarre objects they couldnât explain.