'The axis is the second one of these bones; it serves as a pivot for the atlas, the topmost one'
your vertebrae
ANATOMICALLY CORRECT: The axis is the second one of these bones; it serves as a pivot for the atlas, the topmost one
The axis is the second one of these bones; it serves as a pivot for the atlas, the topmost one
The axis is the second one of these bones; it serves as a pivot for the atlas, the topmost one
ANATOMICALLY CORRECT
your vertebrae
ANATOMICALLY CORRECT