organism
 |__adult____________
organ system         |
 |__tracheal system__|
                     adult tracheal system  179 rec.
                      |__adult peritracheal PM cell 3 rec.
                      |__adult spiracle 33 rec.
                      |   |__adult abdominal spiracle(+) 16 rec.
                      |   |__adult thoracic spiracle(+) 11 rec.
                      |   |__peritreme of spiracle(+) 1 rec.
                      |__adult tracheal section 85 rec.
                      |   |__adult abdominal superficial tracheal branch(+) 9 rec.
                      |   |__adult cervical trachea 7 rec.
                      |   |__adult cibarial muscle tracheal branch 1 rec.
                      |   |__adult dorsal tracheal branch(+) 9 rec.
                      |   |__adult ganglionic tracheal branch(+)
                      |   |__adult haltere tracheal branch
                      |   |__adult labial tracheal branch 4 rec.
                      |   |__adult leg tracheal branch(+) 3 rec.
                      |   |__adult maxillary palp tracheal branch 2 rec.
                      |   |__adult mediosternal tracheal branch 2 rec.
                      |   |__adult spiracular tracheal branch(+) 1 rec.
                      |   |__adult tracheal air sac(+) 28 rec.
                      |   |__adult tracheal dorsal trunk(+) 5 rec.
                      |   |__adult tracheal lateral trunk(+) 4 rec.
                      |   |__adult tracheal transverse connective(+) 3 rec.
                      |   |__adult ventral tracheal anastomosis(+) 2 rec.
                      |   |__adult visceral tracheal branch(+) 20 rec.
                      |   |__adult wing tracheal branch
                      |__adult tracheocyte 44 rec.
                          |__tracheocyte of adult dorsal tracheal branch
                          |__tracheocyte of adult ganglionic tracheal branch
                          |__tracheocyte of adult spiracular tracheal branch
                          |__tracheocyte of adult tracheal dorsal trunk
                          |__tracheocyte of adult tracheal lateral trunk
                          |__tracheocyte of adult tracheal transverse connective
                          |__tracheocyte of adult visceral tracheal branch