Anterior superior iliac spine

Anterior superior iliac spine

The obturator membrane (anterior superior iliac spine visible in upper right of illustration)

Anterior superior iliac spine labeled second to bottom, right.
Latin Spina iliaca anterior superior
TA A02.5.01.111
FMA 49465

Anatomical terms of bone

The anterior superior iliac spine (abbreviated: ASIS) is a bony projection of the iliac bone and an important landmark of surface anatomy. It refers to the anterior extremity of the iliac crest of the pelvis, which provides attachment for the inguinal ligament, and the sartorius muscle. The Tensor fasciae latae muscle attaches about 5cm away at the iliac tubercle.

The anterior superior iliac spine provides a clue in identifying some other clinical landmarks, including:

  1. McBurney's point
  2. Roser-Nélaton line
  3. True leg length (see unequal leg length)


A – Anterior (front, like the face)
S – Superior (towards the head, opposite to feet)
IIliac (Pelvis bone)

Additional images

See also

External links

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This article is issued from Wikipedia - version of the 10/15/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.