Major Muscles of the Posterior Compartment of the Leg: Attachments, Nerve Supply, and Actions
Soleus Muscle - Attachments, Innervation, and Role in Postural Control
The Soleus muscle, part of the posterior compartment of the leg, is crucial for posture and foot plantarflexion. It attaches to the tibia and fibula, is innervated by the tibial nerve, and supports standing and movement.
Major Muscles of the Posterior Compartment of the Leg
Soleus Muscle: Attachments, Innervation, and Role in Postural Control
The Soleus muscle is a key component of the posterior compartment of the leg, primarily responsible for maintaining posture and enabling plantarflexion of the foot.
Attachments
- Origin: Posterior aspect of the tibia and fibula
- Insertion: Calcaneus via the Achilles tendon
Innervation
Innervated by the tibial nerve (S1-S2), ensuring effective communication between the central nervous system and the muscle.
Role in Postural Control
The Soleus muscle plays a vital role in maintaining upright posture, counteracting gravitational forces, and aiding in prolonged standing. It is particularly active during activities requiring stability, such as walking and running.
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