Day 27 (Sacrum) Flashcards Preview

Spinal (2) Lecture (Mine) > Day 27 (Sacrum) > Flashcards

Flashcards in Day 27 (Sacrum) Deck (25):
1

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

the anterior two-thirds

2

What part of the sacral ala is derived from the true transverse process?

the posterior third

3

How many fibrous (amphiarthrosis) syndesmosis joint surfaces are present on the S1 vertebral body?

four

4

How many cartilaginous (amphiarthrosis) symphysis joint surfaces are present on the S1 vertebral body?

one

5

How many fibrous (amphiarthrosis) syndesmosis joint surfaces are present on the S1 vertebral body?

four

6

What muscle(s) may attach to the first sacral vertebral body?

psoas major

7

What is the position of the sacral zygapophysis in adults?

the zygapophysis lies in the coronal plane for L5/S1

8

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

backward, upward, medial (BUM); typically concave

9

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

mammillary process

10

What muscles will attach to the sacral mammilary processes?

multifidis

11

What is the usual condition for the first sacral spinous process?

it is non-bifid and short

12

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

median sacral crest

13

What is the name given to the congenital condition in which the fifth lumbar spinous process is elongated, the sacrum exhibits spina bifida, and dorsiflexion produces pain?

Knife Clasp Syndrome

14

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

intermediate sacral crest

15

What features may be identified along the intermediate sacral crest?

the mammillary process of S1 and the sacral cornu of S5

16

What does the sacral cornu represent?

the inferior articular process and facet of S5

17

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

the sacral hiatus

18

An imaginary line drawn from the transverse process of S1 to the inferior lateral sacral angle will form what feature?

the lateral sacral crest

19

What is the sacral tuberosity?

the enlarged transverse tubercle of S2

20

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

the accessory sacro-iliac joint

21

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

auricular surface

22

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

the sacral promontory

23

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

the deep posterior sacrococcygeal ligament

24

What forms the posterior boundary for the fifth sacral spinal nerve intervertebral foramen?

sacral cornu, coccygeal cornu, superficial posterior sacrococcygeal ligament and intercornual ligament

25

What forms the anterior boundary for the fifth sacral spinal nerve intervertebral foramen?

vertebral body S5, vertebral body Co1, deep posterior sacrococcygeal ligament and intervertebral disc

Decks in Spinal (2) Lecture (Mine) Class (41):