Back Arthrology

Question 1

Uncovertebral Joint of Luschka

Answer 1

At the cervical intervertebral joint: the joint between the Uncinate Process of the inferior Vertebra and beveled inferior surface of the superior Vertebra: It is unclear whether this joint should be classified as Synovial.

Question 2

Hyperextension or whiplash injury in automobile accidents results in____________

Answer 2

Excessive stretching and even tearing of the Anterior Longitudinal L.

Question 3

Describe Disc Herniation

Where is Herniation most common?

Answer 3

Herniation of the Nucleus Pulposus through the Annulus Fibrosis. It occurs posterolaterally where the Annulus Fibrosis receives no support from the Anterior and Posterior Longitudinal Ls.

Herniation is most common at L4/5 and L5/S1 (discs are much larger and more mobile)

Question 4

Atlanto-occipital Joint:
What type of joint?
Between which bones?

Answer 4

1. Condyloid Synovial Joint

2. Between the Atlas and the Basilar Occipital B.

Question 5

Median Atlantoaxial Joint:
What type of joint?
Between which bones?
What ligaments does it include?

Answer 5

1. Trochoid Synovial Joint(Pivot)
2. Atlas and the axis (C2)
3. Cruciate L, Alar L, Apical L of the Dens

Question 6

Lumbosacral Joint:
What kind of joint?
Between which bones?
What ligaments does it include?

Answer 6

1. Compound Joint: Symphysis and Planar Synovial
2. Between L5 and Sacrum
3. Anterior/Posterior Longitudinal L, Interspinous L, Intertransverse L, Supraspinous L (last 3 absent), Iliolumbar L, Lumbosacral L.