Thigh Muscles Quiz
Questions: 16 · 10 minutes
1. Which description best matches pectineus?
A posterior thigh muscle that extends the hip and flexes the knee
A lateral thigh muscle that abducts the hip and stabilizes the pelvis
A deep anterior leg muscle that dorsiflexes the ankle
An upper medial thigh muscle that assists hip flexion and adduction
2. During a forceful kick, rapid extension of the knee is required. Which muscles provide the main force for this phase?
Adductor longus and gracilis
Biceps femoris and semitendinosus
The four quadriceps muscles
Gastrocnemius and soleus
3. A clinician locates the femoral triangle by identifying its lateral muscular boundary. Which muscle forms that boundary?
Rectus femoris
Adductor magnus
Sartorius
Gracilis
4. Which combination best describes the actions of sartorius?
Hip flexion, hip abduction, lateral rotation, and knee flexion
Hip flexion, hip adduction, and knee extension
Hip extension, hip abduction, and knee flexion
Hip extension, hip adduction, and knee extension
5. Which muscle forms the medial boundary of the femoral triangle?
Vastus medialis
Iliopsoas
Pectineus
Adductor longus
6. Which nerve supplies most muscles of the medial compartment of the thigh?
Femoral nerve
Obturator nerve
Superior gluteal nerve
Common fibular nerve
7. While seated, a person squeezes a ball between the knees. Which thigh muscles are being recruited most directly to maintain the squeeze?
The knee flexors
The hip abductors
The hip adductors
The ankle plantarflexors
8. After a femoral nerve injury, which movement would most directly be weakened because of quadriceps impairment?
Adducting the thigh at the hip
Extending the leg at the knee
Plantarflexing the foot at the ankle
Flexing the toes
9. Which muscle group is chiefly responsible for extending the leg at the knee?
Gluteal muscles
Hamstrings
Hip adductors
Quadriceps femoris
10. Which set of actions is most characteristic of gracilis?
Adducting the thigh and helping flex the knee
Extending the hip and laterally rotating the thigh
Flexing the hip and extending the knee
Abducting the thigh and extending the knee
11. Which quadriceps muscle crosses both the hip and knee joints?
Rectus femoris
Vastus intermedius
Vastus lateralis
Vastus medialis
12. A patient has difficulty pulling the thighs toward the body’s midline after an obturator nerve injury. Which movement is impaired?
Hip abduction
Hip adduction
Knee extension
Ankle dorsiflexion
13. A runner forcefully flexes the hip while also preparing to extend the knee. Which quadriceps muscle can contribute at both joints?
Vastus medialis
Rectus femoris
Vastus lateralis
Vastus intermedius
14. At the medial proximal tibia, which muscle contributes the most anterior tendon of the pes anserinus?
Gracilis
Adductor longus
Semitendinosus
Sartorius
15. The femoral vessels pass through the adductor hiatus before entering the popliteal region. In which muscle is this opening located?
Adductor longus
Gracilis
Adductor magnus
Pectineus
16. Tapping the patellar tendon tests a reflex arc associated primarily with which nerve and spinal levels?
Femoral nerve, L2–L4
Sciatic nerve, L5–S1
Obturator nerve, L1–L2
Tibial nerve, S1–S2