multi-tissue structure
 |__foregut_______________
organ system subdivision  |
 |__gut section___________|
gut                       |
 |__gut section___________|
gut section               |
 |__foregut_______________|
                          pharynx  294 rec.
                           |__adult pharynx 40 rec.
                           |   |__adult cibarium(+) 33 rec.
                           |   |__adult epipharynx
                           |   |__adult hypopharynx(+) 14 rec.
                           |__embryonic/larval pharynx 237 rec.
                           |   |__anteroventral group sensillum(+)
                           |   |__dorsal fold lateral sensillum
                           |   |__dorsal fold medial sensillum(+)
                           |   |__dorsal pharyngeal sense organ(+) 14 rec.
                           |   |__embryonic/larval cibarium 1 rec.
                           |   |__embryonic/larval epipharynx(+) 1 rec.
                           |   |__embryonic/larval hypopharynx 4 rec.
                           |   |__laterohypopharyngeal organ 2 rec.
                           |   |__pharyngeal bar 4 rec.
                           |   |__posteriolateral sensillum V4
                           |   |__posterior pharyngeal sense organ 15 rec.
                           |__pharyngeal sense organ 46 rec.
                               |__adult labral sense organ(+) 12 rec.
                               |__anterior sensillum of dorsal cibarial sense organ
                               |__anteroventral group sensillum(+)
                               |__buccal tree
                               |__chemosensory labral sensillum 7
                               |__cibarial fish-trap bristle(+) 2 rec.
                               |__cibarial sense organ(+) 11 rec.
                               |__distal sensillum of ventral cibarial sense organ
                               |__dorsal fold lateral sensillum
                               |__dorsal fold medial sensillum(+)
                               |__dorsal pharyngeal sense organ(+) 14 rec.
                               |__dorsal pharyngeal sensillum(+) 4 rec.
                               |__laterohypopharyngeal organ 2 rec.
                               |__mechano-chemo-sensory labral sensillum(+)
                               |__mechanosensory labral sensillum(+)
                               |__middle sensillum of ventral cibarial sense organ
                               |__posteriolateral sensillum V4
                               |__posterior pharyngeal sense organ 15 rec.
                               |__posterior sensillum of dorsal cibarial sense organ
                               |__proximal sensillum of ventral cibarial sense organ