日本語
maruku
bone-marrow puncture ; bone marrow
kotsuzui senshi
こつずいせんし
bone-marrow puncture
kotsuzui
こつずい
bone marrow
This katakana word "maruku" comes from German word, "Mark (bone marrow)".
たんじゅう
bile
ずいえき
cerebrospinal fluid ; spinal fluid
ずがいこつ
skull