UmTlolo Ongenzasi
a Amatjhuguluko wokuzalanisa izinja, kanengi angaba nomphumela wokulahleka kwezakhi zefuzo. Isibonelo, inja yomhlobo we-dachshund enesiqu esincani ibangelwe kungakheki kuhle kosorhwamu (cartilage), umphumela kukobana iba yifitjhani khulu.