一筋道[hitosujimichi] straight road
一筋繩[hitosujinawa] (piece of) rope
横筋[yokosuji] transversal
家筋[iesuji] lineage
括約筋[katsuyakukin] sphincter

筋違い[sujichigai] cramp
筋違い[sujikai] diagonal
筋骨[kinkotsu] muscles (sinews) and bones
筋書[sujigaki] synopsis

腓骨[hikotsu] fibula
腓返り[komuragaeri] cramp in the leg
腓腹筋[hifukukin] gastrocnemius muscle

腓腸筋[hichoukin] gastrocnemius muscle
腓腹[hifuku] calf muscle

胃腸[ichou] stomach
回腸[kaichou] ileum
結腸[kecchou] colon
鼓腸[kochou] flatulence
十二指腸[juunishichou] duodenum

十二指腸虫[juunishichouchuu] hookworm
大腸[daichou] large intestine
脱腸[dacchou] abdominal hernia
断腸[danchou] heartbreak
断腸の思い[danchounoomoi] heartbroken thoughts