Gastrocnemius Muscle Anatomy Overview

### Muscle Anatomy: Gastrocnemius - Discussion begins with the **gastrocnemius** muscle located in

the leg and foot. - Important anatomical terminology is emphasized: - **Direction**: The gastrocnemius

is found in the posterior lower leg. - **Superficial vs. Deep**: The

gastrocnemius is categorized as a superficial muscle. - Key actions include: - **Flexing** the

knee at the tibiofemoral joint. - **Plantarflexing** the ankle at the talocrural joint.

- **Origin**: Condyles of the femur (posterior surface). - **Insertion**: Calcaneus via the

calcaneal tendon. - **Innervation**: Tibial nerve (from S1 and S2).