Day 28 (Sacrum, Coccyx, Spondylosis, Spondylolysis, Spondylolisthesis) Flashcards Preview

Spinal (2) Lecture (Mine) > Day 28 (Sacrum, Coccyx, Spondylosis, Spondylolysis, Spondylolisthesis) > Flashcards

Flashcards in Day 28 (Sacrum, Coccyx, Spondylosis, Spondylolysis, Spondylolisthesis) Deck (23):
1

What forms the inferior boundary for the spinal canal?

the union of the superficial posterior and deep posterior sacrococcygeal ligaments

2

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

sacrospinous ligament

3

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

sacrotuberous ligament

4

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

interosseous sacro-iliac ligament

5

What is the number of coccygeal somites?

ten

6

What is the typical number of segments which unite to form the adult coccyx?

4 segments

7

When is ossification of coccyx completed?

about age 30

8

What is the direction of fusion of coccygeal segments?

from caudal to cranial, the last segments to fuse together are Co1 and Co2

9

What is the direction of the coccygeal curve?

posterior (kyphotic)

10

What is the major motion and range of motion for coccyx?

flexion-extension, 5-20 degrees

11

How many coccygeal nerves are present in the fetus?

typically 5 pairs of coccygeal nerves are present

12

What forms the coccygeal nerve plexus?

S4, S5, and Co1 nerves

13

What is the ganglion impar?

a midline sympathetic ganglion

14

What is the coccygeal glomus or coccygeal body?

an enlarged encapsulated arteriovenous anastomosis located near the last segment of coccyx

15

What innervates the coccygeal glomus or coccygeal body?

both sympathetic and parasympathetic fibers are identified

16

What joint classifications are present for coccyx?

cartilaginous (amphiarthrosis) symphysis and fibrous (amphiarthrosis) syndesmosis

17

What ligaments of the vertebral column will be attached to coccyx?

anterior sacrococcygeal ligament, superficial posterior sacrococcygeal ligament, deep posterior sacrococcygeal ligament, posterior sacrococcygeal ligament, intercornual ligament, anococcygeal ligament, sacrospinous ligament, sacrotuberous ligament, short posterior sacro-iliac ligament, long posterior sacro-iliac ligament and intervertebral disc

18

What is the homolog for the posterior longitudinal ligament at Co1?

deep posterior sacrococcygeal ligament

19

What is the homolog for the ligamentum flavum at Co1?

superficial posterior sacrococcygeal ligament

20

What forms the inferior boundary for the spinal canal?

the union of the superficial posterior and deep posterior and deep posterior sacrococcygeal ligaments

21

What is the definition of spondylosis?

a vertebral condition

22

What is the definition of spondylolysis?

a vertebral separation or vertebral cleavage

23

What is the definition of spondylolisthesis?

a vertebral slippage

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