spine mcq

Question 1

1. The superior facet joint lies anterior to the inferior facet joint on axial CT slice through the lumbar spine

Answer 1

1. T- it does so for all spinal levels.

Question 2

2. The spinal cord ends at L3 in adult and T12/L1 in a child.

Answer 2

2. F opposite away around

Question 3

3. The spinal cord demonstrates lumbar enlargement as it descends.

Answer 3

3. T- this also occurs in the cervical cord

Question 4

4. The lumbar nerve roots exit below their corresponding pedicle.

Answer 4

this applies for the thoracic spine also. The cervical roots exit above.

Question 5

1. The typical vertebra has 5 primary and 3 secondary ossification centers

Answer 5

1. F- 3 primary and 5 secondary

Question 6

2. The atlas has both primary and secondary ossification centers

Answer 6

2. F

Question 7

3. Primary and secondary ossification centers appear at 8 weeks and 16 years respectively

Answer 7

t

Question 8

4. The anterior and posterior neural arch fusion starts in the cervical region and continues caudally.

Answer 8

4. F- anterior fusion starts neck and goes into lumbar and posterior does reverse. The sacrum is last in both cases.

Question 9

1. 3mm in adult and 6mm in children in acceptable

Answer 9

1. F (3mm adults, up to 5mm in children due to laxity of ligaments

Question 10

2. 10 mm sagittal diameter of the spinal cord canal is consistent with spinal cord narrowing

Answer 10

2. T ( > 18 mm normal; 15-17 mm - grey zone; less than 14 mm / cord compression)

Question 11

Artery of adamkiewicz

1. Arise at the level of T4-T8 as a intercostal artery
2. Arises from the right side in 2/3 of patients
3. Is an enlarged anterior radicular artery
4. AAA repair and bronchial artery embolisation may result in damage to this this artery.
5. Supplies the anterior spinal arteries

Answer 11

1. (F T4-t12)
2. F Left in 2/3
3. T
4. T
5. T- and sends a branch to supply the posterior.

Question 12

1. The supraspinatus ligaments becomes the nucal ligament above C7 and inserts on the internal occipital protuberance

Answer 12

1. F inserts on external occipital protuberance.

Question 13

2. The anterior longitudinal ligament extends from the basilar occipital bone to the sacrum

Answer 13

t

Question 14

3. Anterior longitudinal ligament is stronger than posterior longitudinal ligament

Answer 14

3. T- this is why never see anterior herniation of disc

Question 15

4. The ALL attaches more firmly to the Intervertebral discs than the vertebral bodies

Answer 15

4. F , this is why osteophytes can form anterior as the IVD can prolapse anteriorly.

Question 16

5. Posterior longitudinal ligament extends from the anterior foramen Magnus to the sacrum

Answer 16

5. (F the tectorial membrane is the superior part of PLL)

Question 17

7. The cruciform ligament lies posterior to the tectorial membrane

Answer 17

7. (F the cruciform ligament lies like a cross on the dens and is anterior to the tectorial membrane which is a continuation of the

Question 18

1. Red marrow contains predominately RBC and vasculature with no fat
2. Yellow marrow predominately is located within the axial skeleton in the adult

Answer 18

1. F- predominately vascular but also fat

2. T- The red marrow retreats and in the adult remains in the axial skeleton.

Question 19

3. Red marrow is seen the proximal humerus and NOF within the adult
4. At birth the femur is predominately made of red marrow

Answer 19

3. T

4. T

Question 20

5. Yellow marrow is bright on T1 and dark on T2

Answer 20

5. F- it follows the pattern of subcutaneous fat