What is the origin and insertion for the gastrocnemius?
gastrocnemius muscle, also called leg triceps, large posterior muscle of the calf of the leg. It originates at the back of the femur (thighbone) and patella (kneecap) and, joining the soleus (another muscle of the calf), is attached to the Achilles tendon at the heel.
What is gastrocnemius medial head?
The gastrocnemius muscle consists of 2 heads. The medial head originates from the posterior medial femoral condyle while the lateral head arises from the posterior lateral femoral condyle. The gastrocnemius muscle is vulnerable to injury because it crosses 3 joints: the knee, the ankle, and the subtalar joint.
Where is the medial gastrocnemius?
calf muscle
A medial gastrocnemius strain (MGS), also sometimes called “tennis leg”, is an injury to the calf muscle in the back of the leg. It occurs when the calf muscle is stretched too far resulting in a partial or total tear or rupture within the muscle.
What is the origin and insertion of soleus?
The soleus muscle is a wide flat leg muscle found on the posterior leg….Soleus muscle.
| Origin | Soleal line, medial border of tibia, head of fibula, posterior border of fibula |
|---|---|
| Insertion | Posterior surface of calcaneus (via calcaneal tendon) |
What is gastrocnemius insertion?
The gastrocnemius is located with the soleus in the posterior (back) compartment of the leg. Its other end forms a common tendon with the soleus muscle; this tendon is known as the calcaneal tendon or Achilles tendon and inserts onto the posterior surface of the calcaneus, or heel bone.
Where is the origin of gastrocnemius?
femur
Gastrocnemius muscle
| Origin | Lateral head: Posterolateral aspect of lateral condyle of the femur Medial head: Posterior surface of medial femoral condyle, popliteal surface of femoral shaft |
|---|---|
| Insertion | Posterior surface of the calcaneus via the calcaneal tendon |
| Innervation | Tibial nerve (S1, S2) |
What is the insertion of the gastrocnemius?
Gastrocnemius muscle
| Origin | Lateral head: Posterolateral aspect of lateral condyle of the femur Medial head: Posterior surface of medial femoral condyle, popliteal surface of femoral shaft |
|---|---|
| Insertion | Posterior surface of the calcaneus via the calcaneal tendon |
| Innervation | Tibial nerve (S1, S2) |
What is the origin of Plantaris?
Plantaris muscle
| Origin | Lateral supracondylar line of femur, oblique popliteal ligament of knee |
|---|---|
| Insertion | Posterior surface of calcaneus (via calcaneal tendon) |
| Action | Talocrural joint: foot plantar flexion Knee joint: knee flexion |
| Innervation | Tibial nerve (S1, S2) |
Where is the gastrocnemius vein?
Gastrocnemius veins draining into the small saphenous vein was observed in one leg, as shown in Fig. 2, type 4. Characterised by veins emerging from the lateral and medial heads of gastrocnemius muscle, converging to an axial venous trunk, which continued proximally toward the main gastrocnemius trunk.
What is the origin of the gastrocnemius?
Gastrocnemius muscle
| Origin | Lateral head: Posterolateral aspect of lateral condyle of the femur Medial head: Posterior surface of medial femoral condyle, popliteal surface of femoral shaft |
|---|---|
| Innervation | Tibial nerve (S1, S2) |
| Function | Talocrural joint: Foot plantar flexion Knee joint: Leg flexion |
What is the difference between gastrocnemius and soleus?
The gastrocnemius is the larger calf muscle, forming the bulge visible beneath the skin. The gastrocnemius has two parts or “heads,” which together create its diamond shape. The soleus is a smaller, flat muscle that lies underneath the gastrocnemius muscle.
What is the origin of the Popliteus?
Popliteus muscle
| Origin | Lateral condyle of femur, posterior horn of lateral meniscus of knee joint |
|---|---|
| Insertion | Posterior surface of proximal tibia |
| Innervation | Tibial nerve (L4-S1) |
