anterior inferior 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]

an·te·ri·or in·fe·ri·or il·i·ac spine

(an-tēr'ē-ŏr in-fēr'ē-ŏr il'ē-ak spīn) [TA] The landmark on the anterior aspect of the ilium, inferior to the anterior superior iliac spine.

an·te·ri·or in·fe·ri·or il·i·ac spine

(ASIS) (an-tēr'ē-ŏr in-fēr'ē-ŏr il'ē-ak spīn) [TA] The landmark on the anterior aspect of the ilium, inferior to the anterior superior iliac spine.