Njengoba kushiwo embhalweni, i-sternum yilabo abahlala emaceleni e-front- noma indalo-ikholomu yomzimba ophelile, -ngokuthi "ukuwa" komenzi.

I-Fig. VI-E

Kulesi sixhumanisi kuyafaneleka ukucaphuna "I-Bookbook ye-Anatomy", i-4th edition, ikhasi le-767:

I-Morphology Yesimiso Sokukhathazeka:

"Ubudlelwano be-phylogenetic bezinto ezizwelayo kanye ne-cerebro-spinal ohlelweni akunakwenzeka ukunquma. Kungenzeka ukuthi uhlelo oluzwelayo lumelela isakhiwo sasendulo esizimele ohlelweni lwezinzwa lwe-cerebro-spinal, izinto ezisetshenziselwa isimiso sezinzwa sesimanje; noma kungenzeka ukuthi ukuhlotshaniswa kwezinzwa zomgogodla kanye nozwela kukhona kokubili imiphumela yokwakheka kwezitho ezintsha nezakhiwo endaweni ye-splanchnic. Njengoba ihlolisiswa kukho konke ukukhanya, inezici eziyehlukanisa ngokuphumelelayo nohlelo lwe-cerebro-spinal, nakuba isihlanganiswe ngokungenakuhlukaniswa nayo futhi ingaphansi kwayo.”