The Ability to Nod "Yes" is Due to the Articulation

Question

The ability to nod "yes" is due to the articulation of which two bones?
A) atlas and axis
B) axis and C3
C) atlas and C3
D) axis and occipital
E) atlas and occipital

Accepted Answer

The atlas (C1 vertebra) articulates with the occipital bone at the atlanto-occipital joint, allowing for the nodding motion. Hence, the ability to nod "yes" is due to the articulation of the atlas and the occipital bone.