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Vertebral Column and back
Cole 1/18/10
54
Anatomy
Undergraduate 4
01/21/2011

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Term
flexion, bending toward fetal position
Definition
describe flexion of the trunk (at the lumbar)
Term
leaning back looking at ceiling
Definition
describe extension of the trunk (at the lumbar region)
Term
leaning side to side
Definition
describe lateral flexion
Term
primary curvature, kyphosis, convex
Definition
curvature of the spine of a fetus
Term
cervical, lumbar: secondary curvature (lordosis)
throracic, sacral, coccygeal: primary curvature kyphosis
Definition
curvature of spine of adult
Term
2 superior/inferior articular processes, 2 transverse processes, 1 spinous process
Definition
name all the processes of a vertebra
Term
pedicle and lamina
Definition
2 parts of the vertebral arch
Term
vertebral arch
Definition
surrounds the vertebral canal
Term
two intervertebral notches
Definition
what forms the intervertebral foramen
Term
superior and inferior articular processes
Definition
what processes of the spine form synovial joints
Term
intervertebral foramen b/w adjacent pedicles
Definition
where does the spinal nerve exit the vertebral canal
Term
between bodies and articular processes
Definition
where synovial joints are in the spinal column
Term
intervertebral disk
Definition
name of the pad between vertebral bodies
Term
bifid spine and transverse foramen for cranial nerves
Definition
what two features are unique to cervical vertebrae
Term
costal articular facets on transverse process and bodies for ribs + long vertically oriented spines
Definition
what are 2 unique features of thoracic vertebrae
Term
short posteriorly oriented spines
Definition
what is unique about lumbar vertebrae
Term
shock absorbance, allow movement between vertebrae
Definition
2 functions of intervertebral disks
Term
annulus fibrosis
Definition
what surrounds the nucleus pulposis and connects vertebral bodies together laterally, or all the way around
Term
nucleus pulposis
Definition
only remnant of the notochord
Term
anterior longitudinal ligament
Definition
ligament that runs superior to inferior on the spine and holds the vertebral bodies together on the anterior side, faces the body cavity
Term
posterior longitudinal ligament
Definition
ligament that attaches the vertebral bodies int he vertebral canal along the posterior surface of the vertebral body
Term
ligamentum flavum
Definition
yellow, discontinuous ligament that holds vertebral lamina together
Term
interspinous ligaments
Definition
series of ligaments that connect spines together
Term
supraspinous ligament
Definition
ligament on the dorsal side of the spines (on the tips) this is specialized in the neck for muscle attachment
Term
inter-transverse ligament
Definition
ligament that connects transverse processes
Term
thoracolumbar fascia
Definition
separates intrinsic and extrinsic back muscles
Term
epaxial
Definition
intrinsic back muscles are derrived from what myotome
Term
dorsal rami
Definition
intrinsic back muscles are innervated by which rami?
Term
trapezius-cranial nerve 11, accessory nerve
Definition
only extrinsic back muscle not innervated by a ventral rami
Term
superficial, intermediate, deep
Definition
3 groups of back muscles based on depth
Term
extrinisic
Definition
superficial group of back muscles (intrinsic or ex)
Term
extrinsic
Definition
intermediate group of back muscles (intrinsic of ex)
Term
intrinsic
Definition
deep group of back muscles (intrinsic or ex)
Term
spinalis, longissimus, iliocostalis
Definition
muscles of erector spinae group
Term
erector spinae, transversospinalis, interspinal-intervertransverse
Definition
3 groups of deep back muscles
Term
multifidus, semispinalis, rotatores
Definition
3 muscles of transversospinalis group
Term
interspinales, intertransversarii
Definition
2 muscles of the interspinal-intertransverse group
Term
erector spinae
Definition
these muscles extend the trunk when active bilaterally, when active unitlaterally they flex the trunk toward the side of muscle activity
Term
semispinalis
Definition
transversospinalis muscle that is well developed in the neck, but absent in the thorax causes extension of the head and neck
Term
multifidis
Definition
transversospinalis muscle that is well developed in the sacrum/lumbar, bust absent in thorax inserts on the spines
Term
rotatores
Definition
transversospinalis muscle that only spans one or 2 vertebral levels
Term
transversospinalis
Definition
muscle group that assists the erector spinae in trunk extension when active bilaterally. When active unilaterally, they rotate the trunk to the opposite side of muscle activity
Term
intertransversarii
Definition
tiny interspinal-intertransverse muscle that is involved in head and neck movement
Term
intermediate (extrinsic) back muscles and superficial group
Definition
back muscle innervated by ventral rami of spinal nerves
Term
serratus posterior superior/inferior, levator costae, rhomboid major and minor
Definition
list the intermediate, extrinsic back muscles
Term
serratus posterior (superior and inferior), levator costae
Definition
accessory respiratory muscle, intermediate back muscle group, innervated by intercostal nerve
Term
rhomboid major and minor
Definition
intermediate muscle, upper limb muscle, innervated by dorsal scapular nerve, C5
Term
serratus posterior superior
Definition
muscle deep to rhomboids
Term
serratus posterior inferior
Definition
muscle deep to latissimus
Term
superficial muscles
Definition
these muscles of the back are all innervated by the ventral rami of spinal nerves or cranial nerve 11 (accessory)
Term
trapezius, latissimus dorsi
Definition
list of superficial back muscles
Term
trapezius
Definition
superficial upper limb and neck muscle innervated by CN 11
Term
latissimus dorsi
Definition
superficial upper limb muscle, innervated by long thoracic nerve C5-7
Term
latissimus dorsi
Definition
most superficial lower back muscle
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