Iliopsoas muscles

Iliopsoas

File:Iliopsoas.png

The Iliopsoas muscle, shown in red, is a complex muscle composed of the iliacus and psoas major muscles.

The Iliopsoas is a complex muscle composed of two muscles, the iliacus and psoas major. It is located in the pelvis and forms part of the hip flexors. The iliopsoas is the strongest of the hip flexors and plays a vital role in maintaining good posture and stabilizing the spine.

Structure

The iliopsoas muscle originates from the lumbar vertebrae and the inside of the hip bone. The psoas major begins on the lumbar vertebrae, while the iliacus originates inside the hip bone. These two muscles converge to form the iliopsoas muscle, which inserts into the lesser trochanter of the femur.

Function

The primary function of the iliopsoas muscle is to flex the hip. It also assists in lateral rotation of the thigh and stabilizes the spine. The iliopsoas is essential for walking, running, and standing upright.

Clinical significance

Dysfunction of the iliopsoas muscle can lead to lower back pain and hip pain. It can also contribute to conditions such as iliopsoas bursitis and iliopsoas syndrome.

See also

• Hip muscles
• Hip flexors
• Psoas minor muscle
• Iliopsoas tendonitis

References

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