What are the four angles or spines of the ilium? The ilium, the most superior and largest of the three pelvic bones, has a crest and four angles o...

What are the four angles or spines of the ilium?

The ilium, the most superior and largest of the three pelvic bones, has a crest and four angles or spines.
These angles or spines are important landmarks in surface anatomy that serve for muscle insertions.
The iliac crest forms the prominence of the hip and ends anteriorly as the anterior superior iliac spine.
Immediately below this spine is the anterior inferior iliac spine.
The posterior termination of the iliac crest is the posterior superior iliac spine, and immediately below is the posterior inferior iliac spine.
a) I, II, and III are correct.
b) II, III, and IV are correct.
c) III, IV, and V are correct.
d) I, IV, and V are correct.
e) All statements are correct.