Cervical lordosis is a curve in the cervical spine, the area of the spine which contains the neck vertebrae. This curve is entirely normal and in fact desirable because it helps to stabilize the head and spine, but when the curve straightens out, becomes too deep, or faces in the wrong direction, it can become a problem.
If something's canonical, it follows a principle or rule, usually in a religious or church-related situation. It is also used in mathematics, music and can refer to something reduced to its most basic form.
Statute. An act of a legislature that declares, proscribes, or commands something; a specific law, expressed in writing. A statute is a written law passed by a legislature on the state or federal level. Statutes set forth general propositions of law that courts apply to specific situations.