________ cause the disruption of DNA function and cell death

Peripherally acting adrenergic blockers reduce blood pressure by reducing arterial and venous:

A) blood flow B) vascular tone C) fibrillation D) viscosity

Observing the central incisor from the _____________ aspect assists in differentiating it from the mandibular lateral incisor.

Fill in the blank(s) with the appropriate word(s).