JAMB - Biology (1980 - No. 14)
The joint between the atlas and axis vertebrae allows for
rotatory movement only
up and down or nodding movements only
rotatory and nodding movements
no movement at all
slight movement
توضیح
-The joint between the atlas and axis vertebrae is a PIVOT JOINT.
-The Odontoid Process of the axis acts as a pivot which allow the rotation of the head on the vertebral column.
-Hence; the atlas and the skull together ROTATE about the Odontoid Process.