Io-chui-kut (Latin-gí: Pars lumbalis) sī io-chui ê kut-thâu lêng-kiāⁿ, lâng ê io-chui-kut lóng-chóng ū 5 tè, thâu-pêng hit tè (L1) kap 12 hō heng-chui-kut (Th12) sio-chiap; boé-pêng (L5) kap chiàn-kut sio-chiap.

Lumbar vertebrae
Position of human lumbar vertebrae (shown in red). It consists of 5 bones, from the top down, L1, L2, L3, L4 and L5.
A typical lumbar vertebra
Siông-sè
Sek-pia̍t hû-hō
Latin-gí vertebrae lumbales
TA A02.2.04.001
FMA 9921