1.Lub cev phab ntsa qhia cov leeg nqaij.
2.Lub digestive system qhia qhov qhib, foregut, gastricum, midgut, posterior plab, qhov quav, (lub digestive raj ntawm foregut mus posterior plab yuav raug tshem tawm) thiab salivary qog.
3.Lub circulatory system qhia cov hlab ntsha dorsal thiab lub plawv.Cov kab mob ua pa qhia tau hais tias lub hnab ntim cua thiab cov yeeb nkab cua network.Excretory system Shemal kwj dej.
4.Lub paj hlwb qhia lub hlwb, ventral paj qaum, ventral ganglion thiab lub ntsiab paj hlwb.Lub cev xeeb tub qhia txog zes qe menyuam, suspensory ligaments, lateral fallopian hlab, (sab laug tuaj yeem tshem tawm) cov hlab ntsha hauv nruab nrab, cov hlab ntsha hauv plab, qhov chaw mos, thiab qhov chaw mos foramina.