Tags: Anatomical Structure, Muscle.
The innermost intercostal muscle is a layer of intercostal muscles deep to the plane that contains the intercostal nerves and intercostal vessels and the internal intercostal muscles. These are divided into:transversus thoracis anteriorlylateral muscle slips laterally (which cross a single intercostal space)subcostalis posteriorly (which often cross more than one intercostal space)
