Muscle, Iliotibialis (M. Iliotibialis)

The iliacus muscle (Latin: Musculus iliotibialis), also known as the iliacus muscle or iliofemorus muscle, is a muscle of the body that is located at the back of the thigh and connects to the iliac crest and the top of the femur. It is one of the muscles involved in knee flexion and hip abduction.

The iliac crest muscle consists of two parts: the long iliacus muscle and the short iliacus muscle. The longus iliacus muscle originates from the iliac crest and travels down to the lower leg where it connects to the front of the tibialis muscle. The brevis iliacus muscle originates from the lower part of the iliac crest and runs upward to connect to the back of the tibia.

The function of the iliacus muscle is to flex the hip and extend the knee. It is also involved in leg abduction, especially when lifting the leg.

It is important to note that the iliacus muscles can be susceptible to injury and disease such as tendinitis. To avoid injury, you need to do proper stretching and strengthening exercises. It is also important to monitor your health and consult a doctor if symptoms of the disease appear.