The lateral, posterior exterior, cross-sectional, and side cut-away views of the esophagus anatomy. The lateral view highlights the esophagus and trachea. The side cut-away view includes the esophagus, trachea, nasopharynx, oropharynx, and laryngopharynx. The posterior exterior view displays the esophagus. The cross-sectional view highlights the trachea and esophagus.