Deep Back Flashcards
What are the superficial extrinsic muscles?
Traps and lats innervated by ventral rami
What are the extrinsic intermediate muscles?
Serratus posterior group innervated by ventral rami
What are the deep intrinsic muscles?
Spinotransversalis, erector spinae, transversospinalis groups, innervated by dorsal rami
In the Thoracolumbar Fascia Laminae, the posterior lamina attaches to ______.
the lumbar spinous process
In the Thoracolumbar Fascia Laminae, the middle lamina attaches to ____.
Lumbar transverse processes
In the Thoracolumbar Fascia Laminae,, the anterior lamina (deepest) attaches to the ____.
lumbar transverse processes
What is the action of serratus posterior superior?
elevate upper ribs during inspiration
What is the action of the serratus posterior inferior?
Pull lower ribs inferiorly and counteract the diaphragm
Superficial intrinsic muscles make up the spinotransversalis system, these consist of what muscles?
Splenius capitis
Splenius cervicis
Intermediat intrinsic muscles make up the sacrospinalis (erector spinae) group, these consist of?
Iliocostalis
Longissimus
Spinalis
Deep intrinsic back muslces make up the transversopinalis system, these are made of? How do these run?
Semispinalis
Multifidus
Rotatores
Run laterally insert medially, transverse process to transverse process
What is another name for the nuchal ligament?
Supraspinous ligament
What is the erector spinae group responsible for?
Upright posture
Runs longitudinally up
What are the components to the longissimus muscle?
Thoracis
Cervicis
Capitis
What are the components to the iliocostalis?
Lumborum
Thoracis
Cervicis
