Intermediate Gastrocnemius Quiz

Q1. Where does the medial head of gastrocnemius arise?

• Posterior medial femoral condyle and adjacent region
• Ischial tuberosity
• Anterior tibial condyle
• Fibular head only

Q2. Where does the lateral head of gastrocnemius arise?

• Greater trochanter
• Lateral femoral condyle and adjacent region
• Posterior calcaneus
• Medial tibial condyle

Q3. How does gastrocnemius contribute to the boundaries of the popliteal fossa?

• Its two heads form the inferior boundaries of the popliteal fossa
• It forms both superior boundaries
• It forms the roof of the fossa
• It forms the floor of the fossa

Q4. Which arteries provide important direct branches to gastrocnemius?

• Dorsalis pedis arteries
• Sural arteries
• Medial plantar arteries only
• Inferior epigastric arteries

Q5. Why is gastrocnemius less effective as a plantarflexor when the knee is strongly flexed?

• Knee flexion shortens the muscle across one of its two joints
• Knee flexion denervates the muscle
• Knee flexion moves its tendon anterior to the ankle
• Knee flexion stretches the muscle maximally

Q6. Which spinal nerve roots are commonly associated with gastrocnemius through the tibial nerve?

• L3 and L4
• S3 and S4 only
• L1 and L2
• S1 and S2

Q7. What is the relationship between gastrocnemius and soleus in the calf?

• Gastrocnemius is deep to soleus
• Gastrocnemius is superficial to soleus
• They lie in different leg compartments
• Soleus lies entirely anterior to the tibia

Q8. During walking, when is gastrocnemius particularly important for forward propulsion?

• Mid-swing only
• Early swing only
• Initial contact only
• Late stance and push-off

Q9. Which bursa may lie between the medial head of gastrocnemius and the medial femoral condyle?

• Prepatellar bursa
• Subcutaneous calcaneal bursa
• Medial gastrocnemius subtendinous bursa
• Iliopsoas bursa

Q10. What mechanical feature distinguishes gastrocnemius from soleus?

• Gastrocnemius is biarticular while soleus is not
• Both cross exactly the same joints
• Gastrocnemius crosses only the ankle
• Soleus crosses the hip and knee