Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Shiri dzine imwe yenzira dzokufema dzakaoma kunzwisisa zvikuru pamapoka ose emhuka. Pakupinza mweya, 75% yemhepo yakachena inopfuura nemumapapu uye inoyerera yakananga muhomwe yemhepo yokumashure iyo inobva mumapapu uye inobatanidza nenzvimbo dzomhepo mumapfupa uye inozadza nemhepo. Imwe 25% yemhepo inoenda zvakananga mumapapu. Apo shiri inenge ichidzinga mweya, mhepo inoshandiswa inobva mumapapu uye mhepo itsva inenge yakachengetwa kubva muhomwe yemhepo yokumashure inomanikidzwa kupinda mumapapu panguva imwe chete. Nokudaro, mapapu eshiri anowana mhepo yakachena nguva dzose paanenge achifema nokufema. Kurira kunogadzirwa nokushandisa syrinx, kamuri yemhasuru inosanganisira matempanic membranes akawanda ayo anotsauka kubva kumugumo wepasi we trachea; trachea iri yakareba mune dzimwe mhando, ichiwedzera huwandu hwekutaura uye kuona kwehukuru hweshiri. Mune shiri, mitsinga mikuru inotora ropa kubva pamoyo inobva kurudyi aortic arch (kana pharyngeal arch), kusiyana nemhuka dzinoyamwisa uko kuruboshwe aortic arch inoumba chikamu ichi cheaorta. Iyo postcava inogamuchira ropa kubva kumakumbo kupfurikidza negadziriro yenhepfenyuro yenheyo. Kusiyana nezvisikwa zvinoyamwisa, masero matsvuku eropa eshiri anochengetedza nucleus yawo.  Mubvunzo: Chii chinoita kuti mhepo ipinde mumapapu eshiri
bhegi remhepo riri kumashure