Pyramid of vestibule
Pyramis vestibuli
Definition
Between the spherical and the elliptical recesses is an oblique ridge, the crista vestibuli, the anterior end of which is named the pyramid of the vestibule.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).