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Anatomy · Joints
Sample itemWhat joint type permits head rotation between atlas and axis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Pivot synovial joint
The atlanto-axial articulation is a pivot synovial joint in which the atlas rotates around the dens of the axis during head turning.
Option by option
A. Fibrous suture
Fibrous sutures are immobile skull articulations.
B. Hinge joint
Hinge joints mainly permit flexion and extension.
C. Saddle joint
Saddle joints allow biaxial movement such as at thumb base.
D. Pivot synovial joint (correct)
Correct: atlanto-axial rotation occurs at a pivot joint.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.