1/12/2016 Spinal Questions Flashcards Preview

Spinal Anatomy Test 2 Quiz Questions > 1/12/2016 Spinal Questions > Flashcards

Flashcards in 1/12/2016 Spinal Questions Deck (58):
1

How many joints are traditionally observed at each lumbar vertebral body

L1-L5 = six each

2

What is the the inferior articular facet orientation at each lumbar vertebra?

L1-L5 = forward, downward, lateral (FoLD)

3

What part of the sacral all is derived from the costal element?

The anterior two-thirds

4

The costal element and true transverse process of sacrum unite to form what feature?

Sacral Ala

5

How many fibrous (Amphiarthrosis) Syndesmosis joint surfaces are present on the S1 vertebral body?

Four

6

How many joint surfaces are present on the vertebral body of the first sacral segment?

Five

7

What muscle(s) may attach to the first sacral vertebral body?

Psoas major

8

What is the reported angulation of the first sacral articular facets?

They lie vertically in the coronal plane

9

What is the position of the sacral zygapophysis in adults?

The zygapophysis lies in the coronal plane for L5/S1

10

What is the orientation of the first sacral superior articular facet?

Backward, upward, medial (BUM); typically concave

11

What is the name given to the projection on the first sacral superior articular process?

Mammillary process

12

From the anterior view, the intervertebral discs of sacrum will be replaced by what feature?

Transverse ridges

13

An imaginary line drawn along the dorsal midline of sacrum is identified as the __________.

Median sacral crest

14

What forms the median sacral crest?

Fused spinous processes and their spinous tubercles

15

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?

Knife Clasp Syndrome

16

An imaginary line drawn from the superior articular process of S1 to the sacral Cornu will form what feature?

Immediate sacral crest

17

What forms the intermediate sacral crest?

Fused articular processes and their facets

18

What features may be identified along the intermediate sacral crest?

The mammillary process of S1 and the sacral Cornu of S5

19

What is the remnant of the inferior articular process and facet of S5?

The sacral Cornu

20

What is the name of the inferior opening of the sacral spinal canal?

The sacral hiatus

21

What forms the lateral sacral crest?

The fused transverse processes and transverse tubercles from S1 to S5

22

What is the sacral tuberosity?

The enlarged transverse tubercle of S2

23

What is the name of the joint formed by the sacral tuberosity?

The accessory sacral-iliac joint

24

What muscle is said to attach to the dorsal surface of sacrum?

Iliac us

25

What feature is identified on the lateral surface of S1-S3?

Auricular surface

26

What classification of joint is formed by the Auricular surface of sacrum?

Synovial plane (diarthrosis arthrodia)

27

What feature does the anterior surface of the superior epiphyseal rim of S1 form?

The sacral promontory

28

What ligament is attached to the sacral hiatus?

The superficial posterior sacrococcygeal ligament

29

how many synovial joints are typically present at sacrum?

Four

30

What joint classifications are typically present at sacrum?

Fibrous (Amphiarthrosis) Syndesmosis, cartilaginous (Amphiarthrosis) symphysis and synovial plane (diarthrosis arthrodia)

31

How many synovial joints are maximally observed at each lumbar vertebra?

L1-L5 = four each

32

What forms the posterior boundary for the fifth sacral spinal nerve intervertebral foramen?

Sacral Cornu, coccygeal Cornu, superficial posterior sacrococcygeal ligament and intercornual ligament

33

What forms the anterior boundary for the fifth sacral spinal nerve intervertebral foramen?

Vertebral body S5, vertebral body Co1, deep posterior sacrococcygeal ligament and intervertebral disc

34

What is the homologous for the posterior longitudinal ligament at S5?

Deep posterior sacrococcygeal ligament

35

What is the homolog for the anterior longitudinal ligament at S5?

Anterior sacrococcygeal ligament

36

What is the homolog for the ligament flavum at S5?

Superficial posterior sacrococcygeal ligament

37

What forms the inferior boundary for the spinal canal?

The Union of the superficial posterior and deep posterior sacrococcygeal ligaments

38

What ligaments is formed by the union of the superficial posterior sacrococcygeal and the deep posterior sacrococcygeal ligaments at Co1?

The posterior sacrococcygeal ligament

39

What ligament is a homolog of the intertransverse ligament at S5?

Lateral sacrococcygeal ligament

40

What ligament divides the sciatic foramen into the greater and lesser sciatic foramina?

Sacrospinous ligament

41

Which ligament has broad attachment along the lateral margin of sacrum and coccyx and then attaches to the ischia like tuberosity?

Sacrotuberous ligament

42

Which ligament represents a thickening of the fibrous capsule of the sacrococcygeal-iliac joint?

Anterior sacro-iliac ligament

43

Which ligament is the strongest of the sacro-iliac ligaments and is penetrated by the dorsal rami of the sacral spinal nerves?

Interosseous sacro-iliac ligament

44

Which ligament will attach the intermediate sacral crest of S1, lateral sacral crest of S2 to the posterior superior iliac spine?

Short posterior sacro-iliac ligament

45

Which ligament attaches the lateral sacral crest of S3 and S4 to the posterior superior iliac spine?

Long posterior sacro-iliac ligament

46

What is the homolog for the capsular Ligament at S5?

Intercornual ligament

47

What is the number of coccygeal somites?

Ten

48

What is the typical number of segments that unite to form the adult coccyx?

4 segments

49

When is ossification of coccyx completed?

About age 30

50

What is the direction of fusion off coccygeal segments?

From caudal to cranial, the last segments to fuse together are Co1 and Co2

51

What is the direction of fusion of coccygeal segments?

From caudal to cranial, the last segments to fuse together are Co1 and Co2

52

What is the direction of the coccygeal curve?

Posterior (Kyphotic)

53

What is the major motion and range of motion for coccyx?

Flexion-extension, 5-20 degrees

54

How many coccygeal nerves are present in the fetus?

Typically 5 pairs of coccygeal nerves are present

55

How many coccygeal nerves are present in the adult?

Typically only one pair of coccygeal nerves remain in the adult

56

What forms the coccygeal nerve plexus?

S4, S5 and Co1 nerves

57

What is the ganglion impar?

A midline sympathetic ganglion

58

What innervates the coccygeal glom us or coccygeal body?

Both sympathetic and parasympathetic fibers are identified