Part 1 ligaments and attachment points

Question 1

sacrospinous ligament

Answer 1

ischial spine to lateral borders of sacrum and coccyx

Question 2

sacrotuberous ligament

Answer 2

ischial tuberosity to lateral borders of sacrum and coccyx

Question 3

inguinal ligament

Answer 3

ASIS to pubic tubercle

Question 4

iliolumbar ligament

Answer 4

TVP of L5 to iliac crest

Branches out to superior aspect of iliac crest and iliac fossa.

Question 5

posterior sacroiliac ligament

Answer 5

intermediate and lateral sacral crests to iliac crest and PSIS, PIIS

Short and long heads branch out and run between the sacral foramina

Question 6

anterior sacroiliac ligament

Answer 6

ilium to sacrum

Connects lateral aspect of sulcus of ilium to third sacral segment

Question 7

interosseous sacroiliac ligament

Answer 7

auricular surface of sacrum to iliac tuberosity

deep to the posterior sacroiliac ligament