Sacrococcygeal Joint

Question 1

What joint classifications are present at the sacrococcygeal joint?

Answer 1

• cartilaginous (amphiarthrosis) symphysis

- fibrous (amphiarthrosis) syndesmosis

Question 2

What is different about the intervertebral disc of the sacrococcygeal joint?

Answer 2

it is a true fibrocartilage similar to the symphysis pubis but lacks the nucleus pulposus, annulus fibrosus, and cartilage end plates of intervertebral discs

Question 3

What lig represents the continuation of the anterior longitudinal lig at the sacrococcygeal joint?

Answer 3

the anterior sacrococcygeal lig

Question 4

What are the attaching sites for the anterior sacrococcygeal lig?

Answer 4

the vertebral bodies form about S3 to Co2-Co3

Question 5

List in order from cranial to caudal the ligs forming the anterior boundary of the spinal column.

Answer 5

• anterior atlanto-occipital lig
• anterior atlanto-axial lig
• anterior longitudinal lig
• anterior sacrococcygeal lig

Question 6

What lig represents the continuation of the posterior longitudinal lig at the sacrococcygeal joint?

Answer 6

the deep posterior sacrococcygeal lig

Question 7

What are the attaching sites for the deep posterior sacrococcygeal lig?

Answer 7

the vertebral bodies from about S3 to Co1

Question 8

List in order from cranial to caudal the ligs forming the anterior boundary for the spinal canal.

Answer 8

• membrana tectoria
• posterior longitudinal lig
• deep posterior sacrococcygeal lig

Question 9

What lig represents the homolog of the ligamentum flavum at the sacrococcygeal joint?

Answer 9

the superficial posterior sacrococcygeal lig

Question 10

What are the attaching sites for the superficial posterior sacrococcygeal lig?

Answer 10

the medial margins of the sacral hiatus and sacral cornu down to the back of the vertebral body of Co1

Question 11

List in order from cranial to caudal the ligs forming the posterior boundary of the spinal canal.

Answer 11

• posterior atlanto-occipital lig
• posterior atlanto-axial lig
• ligamentum flavum
• superficial posterior sacrococcygeal lig

Question 12

What forms the closure for the spinal canal inferiorly?

Answer 12

the fusion of the deep posterior sacrococcygeal lig with the superficial posterior sacrococcygeal lig

Question 13

What is the homolog of the intertransverse lig at the sacrococcygeal joint?

Answer 13

the lateral sacrococcygeal lig

Question 14

What are the attaching sites for the lateral sacrococcygeal lig?

Answer 14

the inferior lateral margin of sacrum and the transverse process of Co1

Question 15

What is the homolog of the capsular lig at the sacrococcygeal joint?

Answer 15

the intercornual lig

Question 16

What are the attaching sites for the intercornual lig?

Answer 16

the sacral cornu and the coccygeal cornu

Question 17

What does the sacral cornu represent?

Answer 17

the inferior articular process and facet of S5

Question 18

What does the coccygeal cornu represent?

Answer 18

the superior articular process and facet of Co1

Question 19

What common ligs are represented at the sacrococcygeal joint?

Answer 19

• anterior longitudinal lig
• posterior longitudinal lig
• intervertebral disc
• ligamentum flavum
• capsular lig
• intertransverse lig

Question 20

Which common ligs are absent at the sacrococcygeal joint?

Answer 20

• ligamentum nuchae
• supraspinous lig
• interspinous lig