Ligaments Flashcards
What is the name given to the ligamentum flavum based on appearance and histology?
it is a yellow elastic ligament
what fibers are most ligaments made up of?
collagen type 1 fibers which are whitish in appearance
where is the ossification of the ligamentum flavum most commonly identified?
the thoracic spine or the thoracolumbar transition zone
what is the relationship between the capsular ligament and mobility?
the more lax/loos the capsular ligament is, there greater the motion of the joint.
what regions of the vertebral column demonstrate the greatest laxity of capsular ligaments?
the cervical and lumbar regions
what layers are present in the capsular ligament?
a superficial layer of collagen fibers and a deep layer of elastic fibers.
if the zygapophyseal capsular ligament is not significantly involved in restricting motion what is its function?
it is probably involved in proprioceptive feedback to the muscles stabilizing the vertebral couple during movement.
What is now thought to be a major function of the interspinous ligament?
it is more likely a proprioceptive transducer for the spinal reflex.
what is the name given to the superficial layer of the ligamentum nuchae?
the funicular layer or part.
what is the name given to the deep layer of the ligamentum nuchae?
the lamellar layer or part.
what are the attachment sites for the superficial layer of the ligamentum nuchae?
the external occipital protuberance, external occipital crest, and spinous tubercle of C7.
what is the histological make up of the human ligamentum nuchae?
it is a yellow elastic ligament, but has more collagen fibers than in quadrupeds.
what is the classic function of the ligamentum nuchae?
it brakes or limits flexion of cervical spine.
what is the termination level inferiorly for the supraspinous ligament according to current literature?
primarily at L4 (73%); between L4 and L5 (5%)
what is now thought to be a major function of the supraspinous ligament?
it is a proprioceptive transducer for the spinal reflex
