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Flashcards in Sacrum Deck (31)
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1

part of sacral ala that is derived from the true costal element

anterior 2/3

2

# of fibrous (amphiarthrosis) syndesmosis joint surfaces present on S1 vertebral body

4

3

# of joint surfaces present on vertebral body of the 1st sacral segment

5

4

position of the sacral zygapophysis in adults

coronal plane for L5/S1

5

orientation of S1 superior articular facet

BUM, typically concave

6

name given to the projection on S1 superior articular process

mammillary process

7

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

transverse ridges

8

what is the imaginary line drawn along the dorsal midline of sacrum

median sacral crest

9

formed the medial sacral crest

fused spinous processes and their spinous tubercles

10

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

intermediate sacral crest

11

forms the intermediate sacral crest

fused articular processes and their facets

12

fearture ID'ed along the intermediate sacral crest

mammillary process of S1 and the sacral cornu of S5

13

the remnant of the inferior articular process and facet of S5

sacral cornu

14

name of the inferior opening of the sacral spinal canal

sacral hiatus

15

forms the lateral sacral crest

fused transverse processes and transverse tubercles of S1 to S5

16

what is the sacral tuberosity

enlarged transverse tubercle of S2

17

name of the joint formed by the sacral tuberosity

accessory sacro-iliac joint

18

muscle said to attach to the dorsal surface of sacrum

iliacus

19

feature ID'ed on the lateral surface of S1-S3

auricular surface

20

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

synovial plane (diarthrosis arthrodia)

21

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

sacral promontory

22

ligament attached to the sacral hiatus

superficial posterior sacrococcygeal ligament

23

homolog for the ligamentum flavor at S5

superficial posterior sacrococcygeal ligament

24

forms the inferior boundary for the spinal canal

union of the superficial posterior and deep posterior sacrococcygeal ligaments

25

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

posterior sacrococcygeal ligament

26

ligament that is a homolog of the intertransverse ligament at S5

lateral sacrococcygeal ligament

27

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

sacrospinous ligament

28

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

sacrotuberous ligament

29

ligament that represents a thickening of fibrous capsule of the sacro-iliac joint

anterior sacro-iliac ligament

30

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

interosseious sacro-iliac ligament