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Muscles of the Back
N/A
12
Biology
Undergraduate 1
11/11/2013

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Cards

Term
Erector spinae - Origin
Definition
Nuchal ligament; R3 - R12, thoracic and lumbar vertebrae; Sacral crest; Thoracolumbar fascia
Term
Erector spinae - Insertion
Definition
Mastoid process of temporal; Cervical and thoracic vertebrae; All ribs
Term
Erector spinae - Action
Definition
Extend, laterally flex thoracic vertebral column
Term
Semispinalis thoracis - Origin
Definition
T6 - T10
Term
Semispinalis thoracis - Insertion
Definition
C6 - T4
Term
Semispinalis thoracis - Action
Definition
Extend, rotate thoracic vertebral column
Term
Quadratus lumborum - Origin
Definition
Iliac crest of ilium; Iliolumbar ligament
Term
Quadratus lumborum - Insertion
Definition
R12; L1 - L4
Term
Quadratus lumborum - Action
Definition
Extend, laterally flex lumbar vertebral column
Term
Multifidus - Origin
Definition
C4 - L5; Posterior superior iliac spine of ilium; Sacrum
Term
Multifidus - Insertion
Definition
Laminae, spinous processes of superior vertebrae
Term
Multifidus - Action
Definition
Stabilize adjacent vertebrae
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