9/3 Questions Exam 2

Question 1

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

Answer 1

backward, upward, medial (BUM); typically concave

Question 2

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

Answer 2

mammillary process

Question 3

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

Answer 3

transverse ridges

Question 4

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

Answer 4

median sacral crest

Question 5

What forms the median sacral crest?

Answer 5

fused spinous processes and their spinous tubercles

Question 6

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

Answer 6

intermediate sacral crest

Question 7

What forms the intermediate sacral crest?

Answer 7

fused articular processes and their facets

Question 8

What features may be identified along the intermediate sacral crest?

Answer 8

the mammillary process of S1 and the sacral cornu of S5

Question 9

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

Answer 9

the sacral cornu

Question 10

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

Answer 10

the sacral hiatus

Question 11

What forms the lateral sacral crest?

Answer 11

the fused transverse processes and transverse tubercles from S1 to S5

Question 12

What is the sacral tuberosity?

Answer 12

the enlarged transverse tubercle of S2

Question 13

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

Answer 13

the accessory sacro-iliac joint

Question 14

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

Answer 14

iliacus

Question 15

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

Answer 15

auricular surface

Question 16

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

Answer 16

synovial plane (diarthrosis arthrodia)

Question 17

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

Answer 17

the sacral promontory

Question 18

What ligament is attached to the sacral hiatus?

Answer 18

the superficial posterior sacrococcygeal ligament

Question 19

What is the homolog for the ligamentum flavum at S5?

Answer 19

superficial posterior sacrococcygeal ligament

Question 20

What forms the inferior boundary for the spinal canal?

Answer 20

the union of the superficial posterior and deep posterior sacrococcygeal ligaments

Question 21

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

Answer 21

the posterior sacrococcygeal ligament

Question 22

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

Answer 22

lateral sacrococcygeal ligament

Question 23

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

Answer 23

sacrospinous ligament

Question 24

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

Answer 24

sacrotuberous ligament

Question 25

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

Answer 25

anterior sacro-iliac ligament

Question 26

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

Answer 26

interosseous sacro-iliac ligament

Question 27

What is the position of the sacral zygapophysis in adults?

Answer 27

the zygapophysis lies in the coronal plane for L5/S1