longissimus thoracis muscle

(redirected from musculus longissimus thoracis)

lon·gis·si·mus tho·ra·cis mus·cle

(lon-jis'i-mŭs thō-rā'sis mŭs'ĕl)
Origin, with iliocostalis and from transverse processes of lower thoracic vertebrae; insertion, by lateral slips into most or all of the ribs between angles and tubercles and into tips of transverse processes of upper lumbar vertebrae, and by medial slips into accessory processes of upper lumbar and transverse processes of thoracic vertebrae; action, extends vertebral column; nerve supply, dorsal primary rami of thoracic and lumbar spinal nerves.
Synonym(s): musculus longissimus thoracis [TA] , thoracic longissimus muscle.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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