Atypical Lumbar vertebra L5

Question 1

What is the appearance of the fifth lumbar vertebral body from the lateral view

Answer 1

Anterior height is greater than posterior height by several millimeters; it appears to form a wedge on a lateral X-ray view

Question 2

How many joint surfaces are present on the vertebral body of the fifth lumbar

Answer 2

Six

Question 3

How many synovial joint surfaces are present on the vertebral body of the fifth lumbar

Answer 3

None

Question 4

How many cartilaginous symphysis joint surfaces are present on the vertebral body of L5

Answer 4

Two

Question 5

How many fibrous syndesmosis joint surgaces are present on the vertebral body of L5

Answer 5

Five

Question 6

What muscles attach to the fifth lumbar vertebral body

Answer 6

Psoas major

Question 7

What is the orientation of the fifth lumbar superior articular facet

Answer 7

Backward, upward, medial (BUM)

Typically concaved

Question 8

What is the orientation of the fifth lumbar inferior articular facet

Answer 8

Forward, Lateral, Downward (FoLD)

Significantly convex

Question 9

What is the name given to the congenital condition in which the fifth lumbar spinous process is elongated, the sacrum exhibits spina bifida, and dorsiflexion produces pain

Answer 9

Knife Clasp syndrome

Question 10

What muscles will attach to the fifth lumbar spinous process

Answer 10

Latissimus dorsi
iliocostalis lumborum
longissimus thoracis
multifidis
rotator longus
rotator brevis
interspinalis