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Multifidus thoracis
Other Terms:
Musculus multifidus thoracis,
Muscles multifides du thorax
Muscle parts
None
Latin name
Musculus multifidus thoracis
Latin muscle parts
None
Group
Epaxial muscle – Transversospinales – Multifidus
Etymology
The English name for this muscle is the muscle split into many parts. The word multifidus comes from the Latin multi meaning “much, or many” and the verb findere, which means “to split into many parts.” The word thoracis comes from the Greek thorakos meaning “breast plate or chest.”
Origin
Transverse processes from T1 to T12
Insertion
Posterior surface of laminae and base of spinous processes of from C7 to T11
Action
Assist with extension of the thoracic vertebral column; postural support of vertebral column; proprioceptive monitors of vertebral position.
Nerve supply
Dorsal rami of thoracic spinal nerves (L1 to T1)
Blood supply
Dorsal branches of the posterior intercostal arteries from the thoracic aorta.
Latin
Musculus multifidus thoracis
French
Muscles multifides du thorax
