Soleal line

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Soleal line

The soleal line (also known as the popliteal line) is a prominent ridge located on the posterior surface of the tibia, one of the two bones in the lower leg. This anatomical feature serves as an important attachment point for muscles and plays a crucial role in the movement and stability of the lower limb.

Anatomy

The soleal line runs obliquely across the upper part of the posterior surface of the tibia, starting from the lateral side and extending medially and downward. It is situated below the tibial plateau and above the medial malleolus. The line is more pronounced in some individuals and can be palpated through the skin in leaner individuals.

Muscle Attachments

The soleal line serves as the origin for the soleus muscle, which is part of the triceps surae muscle group. The soleus muscle, along with the gastrocnemius muscle, is responsible for plantarflexion of the foot at the ankle joint. This action is essential for activities such as walking, running, and jumping.

Clinical Significance

Injuries or conditions affecting the soleal line can impact the function of the soleus muscle and, consequently, the overall mobility of the lower limb. Conditions such as tibial stress fractures or compartment syndrome may involve the area around the soleal line and require medical attention.

Related Structures

The soleal line is closely associated with several other anatomical structures in the lower leg, including:

• Tibia
• Fibula
• Gastrocnemius muscle
• Achilles tendon
• Popliteal fossa

See Also

• Lower limb anatomy
• Musculoskeletal system
• Plantarflexion
• Triceps surae

External Links

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