お歯黒[ohaguro] tooth blackening
臼歯[kyuushi] molar
永久歯[eikyuushi] permanent tooth
奥歯[okuba] molars
下歯[shitaba] lower teeth

仮歯[kashi] false tooth
加工歯[kakoushi] dental bridge
義歯[gishi] artificial tooth
鋸歯[kyoshi] teeth of a saw
金歯[kinba] gold tooth

胸腔[kyoukou] thorax
口腔外科[koukuugeka] dental surgery
耳腔[jikou] inside the ear
体腔[taikou] body cavity
体腔壁[taikouheki] body wall

内腔[naikou] lumen (anatomical)
口腔[koukou] the oral cavity
鼻腔[bikou] the nasal cavity
腹腔[fukkou] abdominal cavity
口腔癌[koukougan] oral cancer

延髄[enzui] medulla oblongata
骨髄[kotsuzui] bone marrow
歯髄[shizui] (tooth) pulp
心髄[shinzui] true meaning
精髄[seizui] essence

脊髄[sekizui] spinal cord
脳髄[nouzui] brain
髄虫[meichuu] pyralid larva
骨髄炎[kotsuzuien] osteomyelitis
脊髄炎[sekizuien] myelitis