title: The morphology of the human lumbar multifidus.
abstract: Dissection studies revealed that the fibres of the lumbar multifidus are divided by distinct cleavage planes into five bands. Each band arises from a lumbar spinous process, and is innervated unisegmentally. The lumbar multifidus is therefore composed of five myotomes arranged such that the fibres that move a particular segment are innervated by the nerve of that segment. Target points are described that enable electromyography to be performed on paraspinal muscles of known unisegmental innervation.
authors.affiliation: Department of Anatomy, University of Queensland, St Lucia 4067, Australia.
authors.forename: J E
authors.initials: JE
authors.lastname: Macintosh
authors.forename: F
authors.initials: F
authors.lastname: Valencia
authors.forename: N
authors.initials: N
authors.lastname: Bogduk
authors.forename: R R
authors.initials: RR
authors.lastname: Munro