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Flashcards in 3. Ligaments of spine Deck (10)
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1

which ligaments stabilise the vertebral bodies

1. anterior longitudinal ligament (stronger)
2. posterior longitudinal ligament

2

what is the course and function of the anterior longitudinal ligament

- course: anterior tubercle of atlas to sacrum, united with periosteum of vertebral bodies but mobile over intervertebral discs

- function: prevents hyperextension

3

what is the course and function of the posterior longitudinal ligament

- course: body of axis to sacral canal

- function: prevents hyperflexion

4

which ligaments stabilise the facet joints

1. ligamentum flavum
2. interspinous ligament
3. supraspinous ligament

5

what is the location and function of ligamentum flavum

- stretches between laminae of adjacent vertebrae
- prevents hyperflexion

6

what colour is the ligamentum flavum and why

yellow due to high elastin

7

what is the location and function of interspinous ligament

- weak sheets of fibrous tissue that unite spinous processes along adjacent borders (well developed only in lumbar region)
- provides stability in flexion

8

what is the location and function of supraspinous ligament

- strong band of white fibrous tissue linking tips of adjacent spinous processes
- prevents hyperflexion

9

what is the ligamentum nuchae

thickening of supraspinous ligament attached to external occipital protruberance... spinous processes of all cervical vertebrae... spinous process of C7

10

name 3 functions of ligamentum nuchae

1) maintains secondary curvature of cervical spine
2) helps cervical spine support head
3) major site of attachment of neck and trunk muscles (e.g. trapezius, rhomboids)