noun
abdominal internal oblique muscle
Anatomical term for the internal oblique muscle of the abdomen.
内腹斜筋は腹筋群の一つで、体幹をひねる動きに関与する。
The abdominal internal oblique muscle is one of the abdominal muscles and is involved in twisting the trunk.
Compound of 内 (internal) + 腹 (abdomen) + 斜 (oblique) + 筋 (muscle), directly describing the muscle's location and orientation.