Iliopsoas
A deep muscle group which joins the spine to the legs through the pelvis . It is made up of the iliacus , psoas major and psoas minor muscles.
Synonyms:
Symptoms: internal snapping, low back pain, limited range of motion
Conditions: iliopectinal bursitis, tendinopathy.
http://medicsenglish.com/wp-content/uploads/2022/02/iliopsoas.mp3