Day 10

Question 1

What is characteristic of the L1-L4 articular processes?

Answer 1

The transverse diameter (width between/distance between) superior articular process of an L1-L4 segment will be greater than the transverse diameter (width between/distance between) the inferior articular processes of that same segment.

Question 2

**What is the orientation of the typical lumbar superior articular facet?

Answer 2

backward, upward, medial (BUM); typically concave

Question 3

**What is the orientation of the typical lumbar inferior articular facet?

Answer 3

forward, lateral, downward (FoLD) ; slightly convexity

Question 4

What muscle(s) will attach to the mammillary process?

Answer 4

multifidis and intertransversarii

Question 5

What is the joint classification for the typical lumbar zygapophysis?

Answer 5

synovial plane (diarthrosis)

Question 6

How many joint classification for the typical lumbar vertebra?

Answer 6

four

Question 7

What is the position of the lumbar zygapophysis in children?

Answer 7

the zygapophysis lies in the coronal plane

Question 8

What is the position of the lumbar zygapophysis in adults?

Answer 8

the zygapophysis lies in the sagittal plane for L1/L2, L2/L3, and L3/L4;
the zygapophysis lies in the coronal plane for L4/L5 and L5/S1

Question 9

What names are given to the condition in which one zygapophysis of a vertebral couple lies in the coronal plane or position and the other zygapophysis lies in the sagittal plane or position?

Answer 9

joint asymmetry or joint tropism

Question 10

What is the name(s) of the condition in which the typical lumbar spinous process increases in length due to the aging process?

Answer 10

Baastrup’s syndrome or “kissing spines”

Question 11

What is Baastrup’s syndrome?

Answer 11

elongation of the lumbar spinous process as a result of aging

Question 12

What muscles will attach to the typical lumbar spinous process?

Answer 12

latissimus dorsi, serratus posterior inferior, iliocostalis lumborum, longissimus thoracis, spinalis thoracis, multifidis, rotator longus, rotator brevis and interspinalis

Question 13

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

Answer 13

six

Question 14

How many cartilaginous (amphiarthrosis) symphysis joint surfaces are present on the vertebral body of L5?

Answer 14

two

Question 15

How many fibrous (amphiarthrosis) syndesmosis joint surfaces are present on the vertebral body of L5?

Answer 15

four

Question 16

What joint classifications will be observed at the vertebral body of the fifth lumbar?

Answer 16

cartilaginous (amphiarthrosis) symphysis and fibrous (amphiarthrosis) syndesmosis

Question 17

What muscle(s) attach to the fifth lumbar vertebral body?

Answer 17

psoas major

Question 18

What is the joint classification of the mammillo-accessory ligament?

Answer 18

there is none since it attaches parts of the same vertebra together

Question 19

What muscles may attach to the transverse process of the fifth thoracic vertebrae?

Answer 19

psoas major, quadratus lumborum, longissimus thoracis, rotator brevis, rotator longus, and intertransversarii

Question 20

What ligaments traditionally attach to the transverse process of the fifth lumbar vertebrae?

Answer 20

lumbosacral, iliolumbar and mamillo-accessory ligaments

Question 21

What is the reported angulation and X-ray appearance of the fifth lumbar articular facets?

Answer 21

they lie in the vertical plane and are coronal facets

Question 22

What is the name(s) of the condition in which the L5 spinous process increases in length due to the aging process

Answer 22

Baastrup’s syndrome or “kissing spines”

Question 23

**What is the name given to the congenital condition in which the fifth lumbar spinous process is elongated, the sacrum exhibits spin bifid a, and dorsiflexion produces pain?

Answer 23

Knife Clasp Syndrome

Question 24

What muscles will attach to the fifth lumbar spinous process?

Answer 24

latissimus dorsi, iliocostalis lumborum, longissimus thoracis, multifidis, rotator longus, rotator brevis and interspinalis