TCC Lab 1
What is the insertion of Longissimus Capitis?
Mastoid process
What is the nerve innervation of the Iliocostalis Lumborum?
spinal
What is the nerve innervation of the Iliocostalis cervicis?
spinal
What is the insertion of Spinalis Cervicis?
SP cervical vertebrae except C1
What is the insertion of Longissimus Cervicis?
TP of cervical vertebrae
Origin of Rotatores
TP of lumbar through cervical vertebrae
What is the origin of Longissimus Capitis?
TP upper 5 thoracic
What is the origin of Longissimus Cervicis?
TP upper 5 thoracic
The Rotatores spans
1-2 vertebrae
the multifidi spans
2-4 vertebrae
Secondary action of Multifidi
Bilateral: Spinal extension
Secondary action of Rotatores
Bilateral: Spinal extension
Primary action of Semispinalis Capitis
Bilateral: spinal extension
What is the secondary action of Longissimus Capitis?
Bilateral: spinal extension
What is the secondary action of Longissimus Cervicis?
Bilateral: spinal extension
What is the secondary action of Longissimus Thoracis?
Bilateral: spinal extension
What is the secondary action of Spinalis Cervicis?
Bilateral: spinal extension
What is the secondary action of Spinalis Thoracis?
Bilateral: spinal extension
What is the secondary action of the Iliocostalis Lumborum?
Bilateral: spinal extension
What is the secondary action of the Iliocostalis Thoracis?
Bilateral: spinal extension
What is the secondary action of the Iliocostalis cervicis?
Bilateral: spinal extension
Nerve innervation of Semispinalis Capitis
Cervical
What is the origin of Longissimus Thoracis?
Common Tendon
What is the origin of the Iliocostalis Lumborum?
Common tendon
Which Erector Spinae muscles belong to the 'Most Lateral group?
Iliocostalis Lumborum, Iliocostalis Thoracis, Iliocostalis Cervicis
Description of Most Lateral Group of erector spinae muscles
Lateral "mound" along lumbar; thoracic and cervical: deep to trapezius, rhomboids, serratus posterior and inferior
What is the origin of Spinalis Cervicis?
Ligamentum nuchae, SP C7
Which Erector Spinae muscles belong to the 'Middle group?
Longissimus Thoracis, Longissimus Cervicis, Longissimus Capitis
What is the insertion of Longissimus Thoracis?
Lower 9 ribs and TP of thoracic vertebrae
Muscles that make up the Transversospinalis Group
Multifidi, Rotatores, Semispinalis capitis
What is the origin of Spinalis Thoracis?
SP of upper lumbar and lower thoracic vertebrae
What is the insertion of Spinalis Thoracis?
SP upper thoracic
What is the origin of the Iliocostalis cervicis?
Posterior surface of ribs 1-12
What is the insertion of the Iliocostalis Thoracis?
Posterior surface of ribs 1-6
Origin of Multifidi
Sacrum and TP lumbar through cervical vertebrae
What is the origin of the Iliocostalis Thoracis?
Posterior surface of ribs 1-12
Insertion of Multifidi
SP C2-L5
Insertion of Rotatores
SP C2-L5
Location of Transversospinalis Group
Smaller group that runs the length of the vertebral column; short & diagnal fibers. Difficult to isolate. Can be felt as a group along the lamina groove of thoracic & lumbar vertebrae; Deep to the erectors; has 3 branches; runs from tp to sp in various lengths
Description of Rotatores
Smaller- deeper to multifidi
Description of Most Midline Group of Erector spinae muscles
Smallest, lies closest to the spine in the lamina groove
What is the insertion of the Iliocostalis Lumborum?
TP of L1-L3 and posterior surface ribs 6-12
Nerve innervation of Rotatores
Spinal
Nerve innervation of multifidi
Spinal
What is the Nerve Innervation of Longissimus Capitis?
Spinal
What is the Nerve Innervation of Longissimus Cervicis?
Spinal
What is the Nerve Innervation of Longissimus Thoracis?
Spinal
What is the Nerve Innervation of Spinalis Servicis?
Spinal
What is the Nerve Innervation of Spinalis Thoracis?
Spinal
What is the nerve innervation of the Iliocostalis Thoracis?
Spinal
Which Erector Spinae muscles belong to the 'most midline' group?
Spinalis thoracis and Spinalis Cervicis
Origin of Semispinalis Capitis
TP C4-T5
What is the insertion of the Iliocostalis cervicis?
TP lower cervicals
Description of Middle group of erector spinae muscles
Thick "mound" along thoracic; thoracic and cervical: deep to trapezius, rhomboids, serratus posterior and inferior
Description of Multifidi
Thick in lumbar spine; posterior surface of sacrum
Description of Semispinalis Capitis
Thoraci & cervical; reaches cranium; "bumps" when neck extended with resistance
Primary action of Multifidi
Unilateral: Rotation of opposite side
Primary action of Rotatores
Unilateral: Rotation of opposite side
What is the Primary Action of Longissimus Thoracis?
Unilateral: lateral flex to same side
What is the Primary Action of Spinalis Cervicis?
Unilateral: lateral flex to same side
What is the Primary Action of Spinalis Thoracis?
Unilateral: lateral flex to same side
What is the primary action of Longissimus Capitis?
Unilateral: lateral flex to same side
What is the primary action of Longissimus Cervicis?
Unilateral: lateral flex to same side
What is the primary action of the Iliocostalis Lumborum?
Unilateral: lateral flex to same side
What is the primary action of the Iliocostalis Thoracis?
Unilateral: lateral flex to same side
What is the primary action of the Iliocostalis cervicis?
Unilateral: lateral flex to same side
Insertion of Semispinalis Capitis
between the superior and inferior nuchal lines of the occiput
What is the functional use of the erector spinae muscles?
maintain upright posture, correcting falling forward posture, picking up a heavy suitcase
Secondary action of Semispinalis Capitis
none
What is the location of the Erector Spinae muscle group?
runs from sacrum to occiput posteriorly. Looks like a poplar tree with three main branches: spinalis, longissimus, iliocostalis. They branch off to smaller branches.
