Errector Spinae Flashcards
Splenius Capitis
Origin
Ligamentum nuchae
SP C7-T3
Splenius Capitis
Insertion
Lateral 1/3rd superior nuchal line
Mastoid process
Splenius Capitis
Innervation
Dorsal rami in the area
Splenius Capitis
Action
Bilateral: Head extension
Unilateral: Ipsilateral lateral flexion and rotation
Splenius Cervicis
Origin
SP T3-T6
Splenius Cervicis
Insertion
TP C1-C3
Splenius Cervicis
Innervation
Dorsal Rami in the area
Splenius Cervicis
Action
Bilateral: Neck extension
Unilateral: Ipsilateral lateral flexion and rotation
Iliocostalis Lumborum
Origin
Common tendon of the erector spinal muscles
Iliac crest
Iliocostalis Lomborum
Insertion
Inferior borders of the 6th-12th ribs at the costal angle
Iliocostalis Lumborum
Innervation
Dorsal rami in the area
Iliocostalis Lumborum
Action
Spine: bilateral extension
Unilateral ipsilateral lateral flexion
Iliocostalis Thoracis
Origin
Superior borders of the 6th-12th ribs at the costal angle
Iliocostalis Thoracis
Insertion
Inferior borders of the 1st-6th ribs at the costal angle
Iliocostalis Thoracis
Innervation
Dorsal rami in the area
Iliocostalis Thoracis
Action
Spine: bilateral extension
Unilateral ipsilateral lateral flexion
Iliocostalis Cervicis
Origin
3rd-6th ribs at costal angles
Iliocostalis Cervicis
Insertion
Posterior tubercles of TP C4-C6
Iliocostalis Cervicis
Innervation
Dorsal rami in the area
Iliocostalis Cervicis
Action
Spine: bilateral extension
Unilateral ipsilateral lateral flexion
Longissimus Thoracis
Origin
Common tendon of the erector spinae muscles
TP accessory processes of L1-L5
Longissimus Thoracis
Insertion
TP T1-T12
3rd-12th ribs lateral to the tubercle
Longissimus Thoracis
Innervation
Dorsal rami in the area
Longissimus Thoracis
Action
Spine: bilateral extension
Unilateral ipsilateral lateral flexion
Longissimus Cervicis
Origin
TP T1-T5
Longissimus Cervicis
Insertion
Posterior tubercles TP C2-C6
Longissimus Cervicis
Innervation
Dorsal rami in the area
Longissimus Cervicis
Action
Spine: bilateral extension
Unilateral ipsilateral lateral flexion
Longissimus Capitis
Origin
TP T1-T5
Articular processes C4-C7
Longissimus Capitis
Insertion
Mastoid process
Longissimus Capitis
Innervation
Dorsal rami in the area
Longissimus Capitis
Action
Head: Extension
Unilateral ipsilateral lateral flexion
Spinalis Thoracis
Origin
SP T11-L2
Spinalis Thoracis
Insertion
SP upper Thoracic T1-T4
Spinalis Thoracis
Innervation
Dorsal rami in the area
Spinalis Thoracis
Action
Spine: extension
Spinalis Cervicis
Origin
SP upper thoracic T1-T6
Spinalis Cervicis
Insertion
SP upper cervical C2-C4
Spinalis Cervicis
Innervation
Dorsal rami in the area
Spinalis Cervicis
Action
Spine: extension
Spinalis Capitis
Origin
SP C7-T1
Spinalis Capitis
Insertion
Between superior and inferior nuchal lines
Spinalis Capitis
Innervation
Dorsal rami in the area
Spinalis Capitis
Action
Head extension