Accessory Sacro-Iliac Joint Ligaments Flashcards Preview

Spinal Anatomy I - Exam 3 > Accessory Sacro-Iliac Joint Ligaments > Flashcards

Flashcards in Accessory Sacro-Iliac Joint Ligaments Deck (7):
1

What accessory sacroiliac joint ligs connect to the ischium?

- sacrotuberous lig
- sacrospinous lig

2

What joint classification is associated with the ligs of the sacroischium joint?

fibrous (amphiarthrosis) syndesmosis

3

What are the attachment sites of the sacrotuberous lig?

- from lateral sacral crest at S4 and S5, the inferolateral angle of sacrum and the superolateral part of coccyx, the PSIS and the PIIS
- to the ischial tuberosity

4

What is formed by the continuation of the sacrotuberous lig along the ischial ramus?

the falciform process

5

What are the attachment sites of the sacrospinous lig?

- from the lateral margin of the lower sacral segments and the upper part of coccyx
- to the ischial spine

6

What separates the greater sciatic and lesser sciatic foramen?

the sacrospinous lig

7

What is the function of the sacroischial ligaments?

- they oppose the upward tilt of the sacral apex
- resist the rotation of sacrum between the innominate bones

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