This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Psoas minor muscle (anatomy)

Authoring team

Psoas minor is one of the muscles of the posterior abdominal wall. It is absent in 30-40% of the population.

It originates from the:

  • vertebral bodies of T12 and L1
  • intervertebral disc between T12 and L1

Passing inferiorly and slightly laterally with a long tendon, it inserts into the:

  • fascia overlying the iliopsoas muscle
  • pectineal line of the pubis
  • iliopubic eminence

It is innervated by the anterior primary rami of the first lumbar nerve (L1).

Psoas minor has a weak action to:

  • flex the pelvis
  • flex the lumbar region of the vertebral column

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.