<prompt> Brain temperature is most accurately measured throughTympanic membraneNasopharynxScalpCornea  <response>: Core temperature can be estimated bymeasuring the temperature of the lower esophagus, pulmonary aery, nasopharynx, or tympanum . Brain temperature is usually considered a central temperature, and in the absence of intracranial pathology, it can be estimated by measuring tympanic or esophageal temperatures Ref ganongs review of medical physiology 25e 