肋骨(ろっこつ)

ろっこつ
noun
rib; ribs
medical
1. rib; ribs
The curved bones that form the rib cage, protecting the heart and lungs. Humans have 12 pairs of ribs.
肋骨(ろっこつ)にひびが入(はい)った。
I cracked a rib.
転(ころ)んで肋骨(ろっこつ)を折(お)った。
I fell and broke a rib.
肋骨(ろっこつ)は心臓(しんぞう)と肺(はい)を守(まも)っている。
The ribs protect the heart and lungs.
人間(にんげん)の肋骨(ろっこつ)は左右(さゆう)十二本(じゅうにほん)ずつある。
Humans have twelve ribs on each side.
肋骨(ろっこつ)を骨折(こっせつ)すると、深(ふか)く息(いき)を吸(す)うたびに強(つよ)い痛(いた)みが走(はし)る。
When you fracture a rib, you feel a sharp pain every time you take a deep breath.

Anatomy

Humans have 12 pairs (24 total) of 肋骨(ろっこつ):

  • 7 pairs of 真肋(しんろく) (true ribs): attached directly to sternum
  • 3 pairs of 仮肋(かろく) (false ribs): attached indirectly
  • 2 pairs of 浮遊肋(ふゆうろく) (floating ribs): not attached to sternum

Medical terms

  • 肋骨骨折(ろっこつこっせつ): rib fracture
  • 肋間(ろっかん): intercostal (between ribs)
  • 肋間筋(ろっかんきん): intercostal muscles

Related words

Related Words

Related: 骨盤(こつばん) (pelvis)
Related: 胸骨(きょうこつ) (sternum)
core
Added 2026.1.17 2:27 · Revised 2026.9.2 12:02
05500/05962_rokkotsu