Multiple choice How many tracheal tubes arise from each abdominal spiracle? Several 2 tubes 3 tubes 1 tube Reveal answer Fill a bubble to check yourself C Correct answer Explanation From the atrium of each abdominal spiracle, three tracheal tubes arise. The three tracheal tubes are as follows: A. Dorsal tracheal tube B. Ventral tracheal tube C. Lateral tracheal tube