Question

Joint involved in movement of head from left to right.

• A. Atlanto axial
• B. Atlanto occipital
• C. C2- C3 Joint
• D. C3- C4 Joint

Answer 1

The Correct Option is A

In the human body, various joints contribute to the movement and support of the head. For the specific movement of rotating the head from left to right (or vice versa), we focus on the joint that predominantly facilitates this motion.

The atlanto-axial joint, which is formed by the articulation between the first cervical vertebra (C1, known as the atlas) and the second cervical vertebra (C2, known as the axis), is responsible for the rotational movement of the head.

This joint allows the atlas to pivot around the dens (odontoid process) of the axis, enabling a significant range of rotational motion. In contrast:

• The atlanto-occipital joint primarily permits nodding movements (flexion and extension) rather than rotation.
• The C2-C3 and C3-C4 joints are part of the lower cervical spine and contribute to other neck movements but are not as integral to head rotation as the atlanto-axial joint.

Therefore, the joint involved in the movement of the head from left to right is the atlanto-axial joint.