Exam 2 - Regions of the Vertebral Column ( Sacrum and Coccyx) Flashcards Preview

Spinal Anatomy > Exam 2 - Regions of the Vertebral Column ( Sacrum and Coccyx) > Flashcards

Flashcards in Exam 2 - Regions of the Vertebral Column ( Sacrum and Coccyx) Deck (54):
1

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

transverse ridges

2

What part of the sacral ala continues along the ventral surface of sacrum to about S4?

the costal element

3

What forms the median sacral crest?

fused spinous processes and their spinous tubercles

4

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

intermediate sacral crest

5

What features may be identified along the intermediate sacral crest?

the mammillary process of S1 and the sacral cornu of S5

6

What does the sacral cornu represent?

the inferior articular process and facet of S5

7

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

the sacral hiatus

8

What features may be identified along the lateral sacral crest?

S1 transverse tubercle
sacral tuberosity of S2
transverse tubercles of S3-S5

9

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

the accessory sacro-iliac joint

10

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

iliacus

11

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

auricular surface

12

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

the sacral promontory

13

The continuation of the anterior longitudinal ligament below S3 forms what ligament?

the anterior sacrococcygeal ligament

14

The continuation of the posterior longitudinal ligament below S3 forms what ligament?

the deep posterior sacrococcygeal ligament

15

What ligament is attached to the sacral hiatus?

the superficial posterior sacrococcygeal ligament

16

What is the homolog of the PLL at S5?

deep posterior sacrococcygeal ligament

17

What is the homolog of the ALL at S5

the anterior sacrococcygeal ligament

18

What is the homolog for the ligamentum flavum at S5?

the superficial posterior sacrococcygeal ligament

19

What forms the inferior boundary for the spinal canal?

The union of the Superficial posterior and deep posterior sacrococcygeal ligaments

20

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

the posterior sacrococcygeal ligament

21

What ligament is homolog of the intertransverse ligament at S5?

lateral sacrococcygeal ligament

22

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

sacrospinous ligament

23

WHich ligament has a broad attachment along the lateral margin of sacrum and coccyx and then attaches to the ischial tuberosity?

sacrotuberous ligament

24

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

anterior sacro-iliac ligament

25

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

short posterior sacro-iliac ligament

26

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

long posterior sacro-iliac ligament

27

What is the homolog for the inferior articular process and facet at S5?

sacral cornu

28

What is the homolog for the superior articular process and facet at Co1?

coccygeal cornu

29

What is the homolog for the capsular ligament at S5?

intercornual ligament

30

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

interosseous sacro-iliac ligament

31

What is the number of coccygeal somites?

10

32

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

4

33

when is ossification of the coccyx completed?

about 30

34

What is the homolog of the the superior articular process and facet on Co1?

coccygeal cornu

35

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

flexion/extension 5-20 degrees

36

How many coccygeal nerves are present in the fetus?

typically 5 coccygeal nerves

37

What is the ganglion impar?

a midline sympathetic ganglion

38

What is the cocygeal glomus or coccygeal body?

an enlarged anteriovenous anastomosis located near the last segment of coccyx

39

What muscles attach to coccyx?

ischiococcygues
levator ani

40

What is the homolog for the posterior longitudinal ligament at Co1?

deep posterior sacrococcygeal ligament

41

What is the homelog for the naterior longitudinal ligament at Co1?

anterior sacrococcygeal ligament

42

What forms the inferior boundary for the spinal canal?

the union of the superficial posterior and deep posterior sacrococcygeal ligaments

43

What is the homolog for the capsular ligament at Co1?

intercornual ligament

44

What ligaments form the posterior boundary for the Co1 spinal nerve intervertebral foramen?

superficial posterior sacroccygeal ligament
intercornual ligament

45

What ligaments form the anterior boundary for the Co1 spinal nerve intervertebral foramen?

deep posterior sacrococcygeal ligament
intervertebral disc

46

What is the inferior atricular facet orientation of C1?

Backward Medial Downward
BMD

47

Superior articular facets of which vertebrae will be oriented Backward Upward Medial BUM?

C1, C3-C7,L1-L5, S1

48

Superior articular facets of which segments will be oriented Backward Upward Lateral?

C2, T1-T12

49

Inferior articular facets of which segments will be oriented Foward Lateral Downward FoLD?

C2-C6,T12, L1-L5

50

Inferior articular facets of which segments will be oriented Forward Medial Downward?

C7,T1-T11

51

Inferior articular facets of which segments will be oriented Foward Lateral Downward FoLD AND CONVEX?

T12,L1-L5

52

Which segment has the only inferior articular facet to face backward?

C1

53

WHich segments will have facets that are specifically concave?

C1
L1-L5 SUPERIOR ARTICULAR FACETS
S1

54

WHich segments will have facets that are specifically convex?

T12
L1-L5 INFERIOR ARTICULAR FACETS