exam 2 lumbars

Question 1

What accounts for direction of lumbar curve?

Answer 1

Vertebral body and IVD have greater ant. height than post. height

Question 2

Effect of aging on vertebral body of lumbars

Answer 2

Decrease in height, increase in circumference

Question 3

Number of joint surfaces present on typical lumbar vertebral body?

Answer 3

6

Question 4

Muscles attaching to typical lumbar vertebral body

Answer 4

Psoas major and minor

Question 5

Psoas minor only attaches to vertebral bodies of which segments?

Answer 5

T12 and L1

Question 6

Name given to ligaments attaching vertebral body to articular process

Answer 6

Transforaminal ligs.

Question 7

Hofmann ligaments are in which regions of vertebral column?

Answer 7

Cervical– upper thoracic region and lumbar region

Question 8

Cervical-upper thoracic hofmann ligaments attach what 2 structured together?

Answer 8

Dura mater to segments above

Question 9

Highest level demonstrating hofmann ligaments?

Answer 9

C6

Question 10

Proposed function of cervial-upper thoracic Hofmann ligaments?

Answer 10

Resist caudal movement of dural sac; resist gravitational forces on dura and cord

Question 11

Lumbars hofmann ligament attach what structures together?

Answer 11

Dura mater to lower segmental levels

Question 12

Proposed function of lumbar hofmann ligaments

Answer 12

Resist cranial movement of dural sac during flexion

Question 13

What osseous conditions of lumbar vertebra facilitate a spinal tap in this region?

Answer 13

Overlap of laminae, shingling, diminishes; overlap of spinous process, imbrication, diminishes

Question 14

Generic direction and relative length of each succeeding lumbar transverse process?

Answer 14

Each transverse process directed straight lat. and increases in length from L1-L3, L4 begins to decrease in length

Question 15

Name of elevation near origin of lumbar transverse process?

Answer 15

Accessory process

Question 16

Congenital elongationof lumbar ccessory process results in what feature? with a frequecy of?

Answer 16

Styloid process; occurance of 7%

Question 17

Ligament that will attach to lumbar accasory process

Answer 17

Mammillo-accessory lig.

Question 18

What is entrapped by mammillo-accesory ligment?

Answer 18

Medial branch of dorsal ramus of lumbar spinal nerve

Question 19

Muscles attaching to lumbar accessor process?

Answer 19

Longissimus thoracic and intertransversarii

Question 20

Ligament attaching 12th rib to transverse process of L1?

Answer 20

Lumbocostal lig.

Question 21

Muscles that may attach to transverse process of typical lumbar vertebra?

Answer 21

Psoas major, quadratus lumborum, longissimus thoracic, rotator brevis and longus, and intertransversarii

Question 22

Ligaments attaching to transverse process of typical lumbar vertebra

Answer 22

Lumbocostal, mammillo-accessory and intertransverse ligs,