Lumbar iliac muscle (Musculus iliopsoas)
The muscle iliopsoas (lumbar iliac muscle) is a two-part, approx. 4 cm thick, elongated muscle consisting of the large lumbar muscle and the iliac muscle. It is one of the most important muscles in our body. Approach, Origin, Innervation Approach: Small trochanter (Trochanter minor) Origin: 12th thoracic vertebra, 1st – 4th lumbar vertebra (Processus costarii) … Lumbar iliac muscle (Musculus iliopsoas)