Q5 With reference to the vertebral column

Question 1

Describe the articular surfaces of the facet joints between the 5th and 6th thoracic vertebrae

Answer 1

Are on the superior and inferior articular processes of adjoining vertebrae, oval in shape covered in articular cartilage forming a plain synovial joint. Superior facet faces posteriorly, upwards and laterally. Inferior facet faces anteriorly, downwards and laterally. Facet are sloping vertically

Question 2

Explain how the direction of the articular surfaces influences the movement at this joint

Answer 2

Due to the axis of vertebral rotation and the vertical sloping aspect of the joint surfaces rotation is facilitated over side flexion and flex/extension. Joints move into extension briefly before achieving close-pack/position of most congruence

Question 3

Name 3 ligaments that support the facet joints in the thoracic spine

Answer 3

Supraspinous, Interspinous, Ligamentum Flava, intertransverse, capsular ligament

Question 4

List the movements that occur in the thoracic spine

Answer 4

R and L Rotation, Flexion/extension, side/lateral flexion to R and L