Intermediate Semitendinosus Quiz

Q1. Which muscle shares a common proximal tendon with semitendinosus at the ischial tuberosity?

• Short head of biceps femoris
• Rectus femoris
• Adductor longus
• Long head of biceps femoris

Q2. Which spinal root levels commonly contribute to semitendinosus innervation?

• L5, S1, and S2
• S3, S4, and S5
• L2, L3, and L4
• L1, L2, and L3

Q3. Which artery is an important source of blood to semitendinosus?

• Medial plantar artery
• Dorsalis pedis artery
• Anterior tibial artery
• Perforating branches of the profunda femoris artery

Q4. Which muscles form the superomedial boundary of the popliteal fossa?

• Lateral head of gastrocnemius alone
• Popliteus alone
• Semitendinosus and semimembranosus
• Biceps femoris alone

Q5. Which two other tendons join semitendinosus to form the pes anserinus?

• Adductor longus and pectineus
• Sartorius and gracilis
• Biceps femoris and popliteus
• Rectus femoris and vastus medialis

Q6. How is the distal tendon of semitendinosus characteristically shaped?

• Broad and membranous
• Long and cord-like
• Continuous with the patellar ligament
• Short and absent near the knee

Q7. How does semitendinosus differ from biceps femoris in rotation of the flexed leg?

• Semitendinosus produces medial rotation
• Neither influences rotation
• Both only produce lateral rotation
• Semitendinosus produces lateral rotation

Q8. What is the relationship of semitendinosus to semimembranosus in the posterior thigh?

• Semitendinosus is entirely deeper
• They lie in different thigh compartments
• Semitendinosus lies inside vastus medialis
• Semitendinosus is more superficial

Q9. How can semitendinosus assist during late swing in gait?

• It abducts the thigh as its primary action
• It plantarflexes the ankle for push-off
• It helps decelerate the advancing limb eccentrically
• It extends the knee concentrically through the patella

Q10. Which feature distinguishes semitendinosus from semimembranosus distally?

• Both insert on the patella
• Semitendinosus inserts at the pes anserinus
• Semitendinosus inserts on the adductor tubercle
• Semitendinosus inserts on the fibular head