Medical Dictionary

obturator internus


obturator internus

noun obturator in·ter·nus \-in-ˈtər-nəs\

Definition of OBTURATOR INTERNUS

:  a muscle that arises from the margin of the obturator foramen and from the obturator membrane, that inserts into the greater trochanter of the femur by way of tendons passing through the greater sciatic foramen, and that acts to rotate the thigh laterally when it is extended and to abduct it in the flexed position

Illustration of OBTURATOR INTERNUS

March 04, 2015
sprightly Hear it
Full of life and energy
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears