iliac spine


an·te·ri·or in·fe·ri·or il·i·ac spine

[TA] spine on the anterior border of the ilium between the anterior superior iliac spine and the acetabulum; site of origin for the direct head of the rectus femoris muscle. Synonym(s): spina iliaca anterior inferior [TA]

iliac spine

One of four spines of the ilium, namely, the anterior and posterior inferior spines and the anterior and posterior superior spines.See also: spine