| 释义 |
internal intercostal (muscle) in·ter·nal in·ter·cos·tal (mus·cle) [TA] flat muscle of thorax arising from lower border of rib and passes obliquely downward and backward to be inserted into upper border of rib below; action, contract during expiration, also maintain tension in the intercostal spaces to resist mediolateral movement; nerve supply, intercostal. Synonym(s): musculus intercostalis internus [TA] |