Fig. (2) Midsagittal section of the upper respiratory tract. OP:
oropharnyx. LP: laryngopharnyx. TR: trachea. ES: esophagus. EP:
epiglottis. TC: thyroid cartilage. CC: cricoid cartilage. Arrow A:
path for direct laryngoscopic orotracheal intubation. Arrow B: path
for surgical cricothyrotomy. Arrow C: path for high surgical
traceostomy.