El iliopsoas es un músculo situado en el compartimento anterior del muslo. Está compuesto por dos músculos distintos: el psoas mayor y el ilíaco. Estos músculos se originan en la pelvis y pasan por debajo del ligamento inguinal hasta el compartimento anterior del muslo, donde forman un tendón común. Inserciones: Psoas mayor: se origina en las vértebras lumbares. Ilíaco: se origina en la fosa ilíaca de la pelvis. Se insertan juntas en el trocánter menor del fémur. Acciones: flexión del muslo a la altura de la articulación de la cadera. Inervación: Psoas mayor: ramos anteriores de L1-3. Ilíaco: nervio femoral. Irrigación sanguínea: rama iliolumbar de la arteria ilíaca interna, con aportes de las arterias obturadora y femoral. By TeachMeSeries Ltd (2026) Fig. 1: los músculos de la parte anterior del muslo. Característica Pro - Modelo en 3D Premium Feature Explore, cut, dissect, annotate and manipulate 3d models to visualize anatomy in interactive and dynamic way. Pasarse a la versión Premium Característica Pro - Atlas de disección The lumbar plexus, femoral nerve and muscles of the posterior abdominal wall. The lumbar plexus, femoral nerve and muscles of the posterior abdominal wall. Premium Feature Explore, cut, dissect, annotate and manipulate 3d models to visualize anatomy in interactive and dynamic way. Pasarse a la versión Premium Frequent questions What is the iliopsoas muscle and its components? The iliopsoas muscle consists of two distinct muscles: the psoas major and the iliacus. These muscles originate from the lumbar vertebrae and the iliac fossa of the pelvis, respectively, and they work together to flex the thigh at the hip joint. Where do the iliopsoas muscles insert? The psoas major and iliacus insert together at the lesser trochanter of the femur. This common insertion allows them to effectively contribute to hip flexion. What actions are performed by the iliopsoas muscle? The primary action of the iliopsoas is the flexion of the thigh at the hip joint. This muscle group is crucial for movements such as walking, running, and climbing. How is the iliopsoas muscle innervated? The psoas major is innervated by the anterior rami of spinal nerves L1 to L3, while the iliacus is supplied by the femoral nerve. This dual innervation allows for coordinated muscle function. What is the blood supply to the iliopsoas muscle? The iliopsoas receives its blood supply mainly from the iliolumbar artery, with additional contributions from the obturator and femoral arteries. This vascularisation is essential for its metabolic needs during activity. Valora este artículo