Destruction of radial nerve, percutaneous approach

There are specialized anatomic structures that receive the vibration of sound, as well as being sensitive to gravity and the movements of the head. These structures are connected to the ________ cranial nerve by special nerve fibers.

A. second B. fourth C. sixth D. eighth

Medications can be administered via each of these methods, except:

A. intravenous. B. intradermal. C. intracardiac. D. intranasal.