Neeg Keeb Kwm Tsev Neeg Keeb Kwm
19cm, Lub neej loj. Cov kev lees paub ntawm pob txha taub hau ntawm pob txha taub hau, 7 lub ncauj tsev menyuam txhaws nrog intervertebral discs, ntu ntawm txha caj qaum thiab pob txha ceg. Hloov kho kom haum rau sawv ntsug, tshem tau
Sau koj cov lus ntawm no thiab xa rau peb