Anatomy Flashcards
ligaments flava
connects lamina of vertebral arches
AKA yellow ligament
processes of vertebrae
Spinous
2 transverse
function in. muscle attachment and movement
C2
Axis
head rotates on this
dens or odontoid processes
annulus fibrosis
fibrous ring
outer layer of IV disk
spinal cord runs
foramen magnum to L1 or L2
continues to spinal nerves (cauda equina)
Atlanto-occipital joint location
between C1 & occiput of skill
characteristics of thoracic vertebrae
articular faces are vertical = prevents flexion and extension (but can do rotation and lateral flexion)
long spinous processes
Atlanto-axial joint location
between C 1 and C2
sacral foramen
exits for sacral spinal nerves
anterior are larger than posterior foramen
C1
Atlas
allows for lesion and extension
lateral masses support the head
superficial intrinsic muscles
splenius
capitis, cervicis
normal spine vertebrae break down
Cervical = 7 Thoracic = 12 Lumbar = 5 Sacrum = 5 Coccyx = 4
IV disk is composed of
annulus fibrosus an nucleus pulposus
anterior longitudinal ligament
runts entire length of vertebral column in front of the body
only ligament to limit extension
foramen transversarium
fond in cervical transverse processes
site of passage for vertebral artery and vein
deep intrinsic muscles
transversospinalis
semispinalis, multifdus, rotatores
nucleus pulposus
central cell like fluid of IV disk
Bodies of vertebrae separated by
intervertebral disk
intermediate intrinsic muscles
erector spinae
iliocostalis, longissimus, spinalis
curves of thoracic and sacral regions
kyphotic curves
components of vertebrae
body
arch
articular facets
processess
extrinsic muscles of back
superficial and deep
control limb and respiratory movement
intrinsic muscles of the back
act on vertebral column only
produce muscle movement and posture
characteristics of lumbar vertebrae (movement allowed(
flexion/extension/lateral flexion OK but no rotation
spinous processes are shorter and more squared off
joint with minimal motion
sacroiliac
posterior longitudinal ligament
protects form posterior disk herniation
spinous processes by race/gender
bifid in males but not in females/African descent
curves of cervical and lumbar regions
lordotic curves
groups of intrinsic muscles
superficial
intermediate
deep layers
dens location and ligament
anterior to SC and held by transverse ligament of Axis
