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contents  The goal in these in vivo experiments was to answer
the questions …   Biology Articles » Anatomy & Physiology »
Anatomy and Physiology of Principal Cells of the Medial Nucleus
of the Trapezoid Body (MNTB) of the Cat » Methods   Many of the
methods used for these experiments have been described in detail
elsewhere (Smith and Rhode 1985ref-arrow.gif; Smith et
al.1991ref-arrow.gif, 1993bref-arrow.gif) and are summarized
here. Animals were maintainedin an American Association for
Accreditation of Laboratory AnimalCare (AAALAC)-approved animal
care facility, and all methods havebeen approved by the
University of Wisconsin Institutional AnimalCare And Use
committee.  Surgical procedure  Young adult cats were
anesthetized and maintained in an areflexive state with
pentobarbital sodium (35 mg/kg). Pinnae wereremoved, and the
external auditory meati cut transversely forinsertion of metal
ear pieces through which acoustic stimuli,calibrated from 60 Hz
t