Craniovertebral Joints

Question 1

What is the Atlanto-Occipital Joint

Answer 1

Joint b/w C1 and occipital bone

yes movement

Question 2

What is Atlanto-Axial Jion

Answer 2

B/w atlas and axis

provides no movement

Question 3

Ligaments of the craniovertebral joint main f(x)?

Answer 3

Stabilize the joint
protect medulla and spinal cord
prevent excessive movement
some are extension of ligament of the spinal column

Question 4

What are the ligaments of the Craniovertebral joint

Answer 4

anterior atlanto-occipital membrane

membrane tectoria

posterior atlanto-occipital membran

cruciate ligament

Alar ligament

Question 5

Anterior atlanto-occipital membrane

Answer 5

extension of the anterior longitudinal ligament

goes from the atlas to the occipital bone

Question 6

Membrana Tectoria

Answer 6

extension of posterior longitudinal ligament of spinal column

    goes from axis to occipital bone, posterior to cruciate ligament

Question 7

Posterior Atlanto-Occipital Membrane

Answer 7

Extension of ligamenta flava

goes from atlas to the occipital bone

Question 8

What is the transverse ligament

Answer 8

it is one of the components of the cruciate ligament

transverse band within vertebral canal which is attached to inner side of the inferior bands

Question 9

Tear to the cruciate ligament causes what?

Answer 9

Dens of C2 to drive into the spinal cord and/or medulla.

Spinal cord damage is quadriplegia

Medulla damage will result into death :(

Question 10

Cruciate ligament contains what?

Answer 10

Transverse Ligament
Superior Band
Inferior Band

Question 11

Alar Ligament

Answer 11

check ligament

extends laterally from dens to occipital bone
Prevent excessive rotation of head