Eosinophils respond to allergic conditions and parasitic invasions

If the SA node fails to discharge, an electrical impulse will originate from the:

a. AV node. b. bundle of His. c. Purkinje network. d. ventricles.

The horizontal angulation for topographical occlusal radiographs is determined by directing the central rays at the image receptor perpendicularly through the teeth embrasures (spaces)

Indicate whether the statement is true or false