Exam 2- Sacrum

Question 1

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

Answer 1

Four

Question 2

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

Answer 2

5

Question 3

What muscle attaches to the first sacral vertebral body

Answer 3

Psoas major

Question 4

What is the position of the sacral zygapophysis in adults

Answer 4

The zygapophysis lies in the coronal plane for L5/S1

Question 5

What is the orientation of the first sacral superior articular facet

Answer 5

BUM; concave

Question 6

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

Answer 6

Mammillary process

Question 7

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

Answer 7

Transverse ridges

Question 8

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

Answer 8

Median sacral crest

Question 9

What forms the median sacral crest

Answer 9

Fused spinous processes and their spinous tubercles

Question 10

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

Answer 10

Intermediate sacral crest

Question 11

What forms the Intermediate sacral crest

Answer 11

Fused articular processes and their facets

Question 12

What features may be identified along the intermediate sacral crest

Answer 12

The mammillary process of S1 and the sacral cornu of S5

Question 13

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

Answer 13

The sacral Cornu

Question 14

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

Answer 14

The sacral hiatus

Question 15

What forms the lateral sacral crest

Answer 15

The fused transverse processes and transverse tubercles from S1 to S5

Question 16

What is the sacral tuberosity

Answer 16

The enlarged transverse tubercle of S2

Question 17

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

Answer 17

The accessory sacroiliac joint

Question 18

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

Answer 18

Iliacus

Question 19

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

Answer 19

Articular surface

Question 20

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

Answer 20

Synovial plane

Question 21

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

Answer 21

The sacral promontory

Question 22

What ligament is attached to the sacral hiatus

Answer 22

The superficial posterior sacral coccygeal ligament

Question 23

How many synovial joints are typically present at sacrum

Answer 23

Four

Question 24

What joint classifications are typically present at sacrum

Answer 24

Fibrous syndesmosis, carilaginous symphysis and synovial plane

Question 25

What part of the sacral ala is derived from the costal element

Answer 25

The anterior two-thirds

Question 26

What is the homolog for the ligamentum flavum

Answer 26

Superficial posterior sacrococcygeal ligament

Question 27

What forms the inferior boundary for the spinal canal

Answer 27

The Union of the superificial posterior and deep posterior sacrococcygeal ligaments

Question 28

What ligament is a homolog of the Intertransverse ligament of S5

Answer 28

Lateral sacrococcygeal ligament

Question 29

What ligament decides the static foramen into the greater and lesser sciatic foramina

Answer 29

Sacrospinous ligament

Question 30

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

Answer 30

Sacrotuberous ligament

Question 31

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

Answer 31

Anterior sacr-illiac ligament

Question 32

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

Answer 32

Interosseous sacro-iliac ligmament