Exam 2 Sacrum Flashcards Preview

Spinal Anatomy Summer 2015 > Exam 2 Sacrum > Flashcards

Flashcards in Exam 2 Sacrum Deck (33)
1

How many fibrous Amphiarthrosis syndesmosis joint surfaces are present on the S1 vertebral body

4

2

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

5

3

What muscles may attached to the first sacral vertebral body

Psoas major

4

What part of the sacral ala is derived from the Costoelement

The anterior two thirds

5

What is the position of the sacral zygapophyses in adults

The zygapophysis lies in the coronal plane for L5 S1

6

What is the orientation of the first sacral superior articular facet

Backward upward medial typically concave

7

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

Mamillary process

8

From the anterior view the intravertebral disc of the sacrum will be replaced by what feature

Transverse ridges

9

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

Median Sacral crest

10

What forms the median sacral crest

Fused spinous processes and there spinous tubercles

11

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

Intermediate Sacral crest

12

What forms the intermediate Sacral crest

Fused articular processes and their facet

13

What features maybe identified along the intermediate sacral crest

The Mammillary process of S1 and the sacral Cornu of S5

14

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

Sacral Cornu

15

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

Sacral hiatus

16

What forms the lateral Sacral crest

The fuse transverse processes and the transverse tubercles from S1 to S5

17

What is the sacral tuberousity

The enlarged transverse tubercle of S2

18

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

The accessory sacroiliac joint

19

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

Iliacus

20

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

Auricular surface

21

What classification of joint is formed by the auricular surface of sacrum

Synovial plane diarthrosis arthrodia

22

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

The sacral promontory

23

What ligament is attached to the Sacral hiatus

The superficial posterior sacrococcygeal ligament

24

What is the homolog for the ligamentum Flavum at S5

Superficial posterior Sacrococcygeal ligament

25

What forms the inferior boundary for the spinal canal

The union of the superficial posterior and Deep posterior Sacrococcygeal ligaments

26

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

The posterior sacrococcygeal ligament

27

What ligament is a homolog of the intertransverse ligament at S5

Lateral sacrococcygeal ligament

28

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

Sacro spinous ligament

29

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

Sacrotuberous ligament

30

Which ligament represents a thickening of the fibrous capsule of the sacroiliac joint

Anterior sacral iliac ligament

31

Which ligament is the strongest of the sacroiliac ligaments in is penetrated by the dorsal Rami of the sacral spinal nerves

Interosseus sacroiliac ligaments

32

What is the homolog for the superior articular process and facet of co1

Coccygeal Cornu

33

What is the homolog for the capsular ligament at S5

Intercornual ligament

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