DPT6160 - MUSCLES OF THE SPINE EXAM QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
intrinsic muscles of the back innervation
posterior rami of spinal nerves
intrinsic muscles of the back function
maintain posture and move the vertebral column
intrinsic muscles of the back are enclosed by what?
deep fascia that attaches medially to the nuchal ligament, tips of spinous processes,
supraspinous ligament, and median crest of sacrum
intermediate layer of spine muscles
erector spinae
erector spinae
prime mover of back extension; comprised of the iliocostalis, longissimus, and spinalis
erector spinae pneumonic
i (iliocostalis)
like (longissimus)
standing (spinalis)
so (spinalis)
leave (longissimus)
it (iliocostalis)
, iliocostalis distal attachment
lumborum, thoracis, cervicis; fibers run superiorly to angles of lower ribs and cervical
transverse processes
iliocostalis proximal attachment
broad tendon from posterior iliac crest, posterior surface of sacrum, sacroiliac
ligaments, sacral and lumbar spinous processes, and supraspinous ligament
iliocostalis innervation
posterior rami of spinal nerves
iliocostalis movement
extension of vertebral column
control movement via eccentric contraction
lateral flexion
longissimus proximal attachment
broad tendon from posterior iliac crest, posterior surface of sacrum, sacroiliac
ligaments, sacral and lumbar spinous processes, and supraspinous ligament
longissimus distal attachment
thoracis, cervicis, capitis; fibers run superiorly to ribs between tubercles and angles to
transverse processes in thoracic and cervical regions, and to mastoid process of
temporal bone
longissimus innervation
posterior rami of spinal nerves
longissimus movement
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
intrinsic muscles of the back innervation
posterior rami of spinal nerves
intrinsic muscles of the back function
maintain posture and move the vertebral column
intrinsic muscles of the back are enclosed by what?
deep fascia that attaches medially to the nuchal ligament, tips of spinous processes,
supraspinous ligament, and median crest of sacrum
intermediate layer of spine muscles
erector spinae
erector spinae
prime mover of back extension; comprised of the iliocostalis, longissimus, and spinalis
erector spinae pneumonic
i (iliocostalis)
like (longissimus)
standing (spinalis)
so (spinalis)
leave (longissimus)
it (iliocostalis)
, iliocostalis distal attachment
lumborum, thoracis, cervicis; fibers run superiorly to angles of lower ribs and cervical
transverse processes
iliocostalis proximal attachment
broad tendon from posterior iliac crest, posterior surface of sacrum, sacroiliac
ligaments, sacral and lumbar spinous processes, and supraspinous ligament
iliocostalis innervation
posterior rami of spinal nerves
iliocostalis movement
extension of vertebral column
control movement via eccentric contraction
lateral flexion
longissimus proximal attachment
broad tendon from posterior iliac crest, posterior surface of sacrum, sacroiliac
ligaments, sacral and lumbar spinous processes, and supraspinous ligament
longissimus distal attachment
thoracis, cervicis, capitis; fibers run superiorly to ribs between tubercles and angles to
transverse processes in thoracic and cervical regions, and to mastoid process of
temporal bone
longissimus innervation
posterior rami of spinal nerves
longissimus movement
