The following statement is true about internal rotation of the head?
The level at which internal rotation occurs is variable. Rotation in the cervix although orable is a less frequent occurrence. In a majority of cases, rotation occurs in the pelvic floor. Rarely it occurs as late as during crowning of the head.D.C.DUTTA&;S TEXTBOOK OF GYNECOLOGY, Pg no:125,7th edition
Rotation occurs mostly in the cervix
In majority, rotation occurs in the pelvic floor
Rotation occurs commonly during crowning of the head
Rotation is easier in primiparae than multiparae
General obstetrics