where does the anterior longitudinal ligament extend from?
anterior surface of vertebral bodies
can you stress the anterior longitudinal ligament?
No, taugt extension, can't in reality stress it
what aspects of the anterior longitudinal ligament are broader, thinner?
broader caudally and thinner cranially
at about the level of C2 what is the anterior longitudinal ligament replaced by?
it is replaced by the anterior atlantooccipital membrane (different type of tissue)
the anterior longitudinal ligament is thicker and narrower in the _spine than in the _ and _ spine
thicker and narrower in the T-spine than in the c and l-spine
the anterior longitudinal ligament extends to the front of the ___
the longitudinal fibres of the anterior longitudinal ligament attach to what?
anterior aspect of vertebral bodies
the anterior longitudinal ligament fibres blend with what?
subadjacent periosteum, perichondrium and periphery of the annulus fibrosis
describe the anterior longitudinal ligament superficial layer
longest, extend over 3 of 4 vertebrae (thinnest, weakest)
How many vertebrae does the anterior longitudinal ligament intermediate layer run between?
between two or three vertebrae
describe the anterior longitudinal ligament deep layer
one body to next (strongest)
where does the posterior longitudinal ligament lay?
lies in the vertebral canal on the posterior surface of the vertebral bodies
what is the posterior longitudinal ligament continuous with at about C1-C2?
what does the posterior longitudinal ligament attach to?
IVD, hyaline cartilage and vertebral bodies
in the lumbar spine and lower thoracis spine the posterior longitudinal ligment is ___, narrow over ___ and broad over ___
in lumbar spine and lower thoracic spine it is DENTICULATE, narrow over VERTEBRAL BODIES and broad over DISCS
what is the posterior longitudinal ligament fused with and how does this reinforce the disc
fused with nulus fibrosis of the IVD therfore reinforces disc posteriorly
when is the posterior longitduinal ligament taut?
T/F the posterior longitudinal ligament is affected by anything in the vertebral canal i.e. meningitis, disc herniation
describe the superficial layer of the posterior longitudinal ligament
longest, extend over 3 of 4 vertebrae
describe the intermediate layer of the posterior longitudinal ligament
between two or three vertebrae
describe the deep layer of the posterior longitudinal ligament
extends between adjacent vertebrae
where is the ligamentum flavum found and what does it lie posterior to?
inside vertebral canal posterior to spinal cord
what does the ligamentum flavum connect in the vertebral canal?
connects lamina to lamina
what tissue properties does the ligamentum flavum have and what does this allow for?
yellow elastic tissue like the ligamentum nuchae to allow for mobility and recoil
what does the ligamentum flavum restrict and what does it provide rebound tension for?
restricts flexion and lends rebound tension to go back into extension
do the fibres of the ligamentum flavum run parallel or perpendicular?
almost perpendicular fibres
what two points does the ligamentum flavum run between?
descend from inferior surface of one lamina to the superior surface of next lower lamina
where is the ligamentum flavum thin, thick and thickest?
thin -broad and long in the neck
thicker - in the thoracic spine
thickest -in the lumbar spine
what is the most superficial ligament in the spine?
what points does the supraspinous ligament run between
from spinous process to spinous process - C7 to sacrum (becomes ligamentum nuchae above C7)