Intermediate Acetabulum Quiz

Q1. Which ligament bridges the acetabular notch?

• Inguinal ligament
• Sacrotuberous ligament
• Transverse acetabular ligament
• Fibular collateral ligament

Q2. Which artery can send an acetabular branch through the acetabular notch toward the femoral head?

• Fibular artery
• Dorsalis pedis artery
• Obturator artery
• Anterior tibial artery

Q3. Which part of the acetabulum is the primary articular load-bearing surface?

• Acetabular notch
• Acetabular fossa
• Lunate surface
• Obturator foramen

Q4. What is normally found within the acetabular fossa?

• The iliopsoas tendon
• The femoral neck
• A complete covering of hyaline articular cartilage
• Fatty tissue and associated intra-articular structures

Q5. Where does the acetabular labrum attach?

• Around the acetabular rim
• Along the femoral shaft
• Along the iliac crest
• Only around the obturator foramen

Q6. How does the acetabular labrum contribute to hip mechanics?

• It deepens the socket and contributes to a stabilizing seal
• It prevents all hip rotation
• It makes the acetabulum shallower
• It forms the femoral neck

Q7. Which developmental cartilage lies between the ilium, ischium, and pubis around the immature acetabulum?

• Triradiate cartilage
• Costal cartilage
• Meniscal cartilage
• Femoral epiphyseal plate

Q8. In which general direction does the acetabular opening face?

• Inferiorly with no lateral component
• Laterally, anteriorly, and somewhat inferiorly
• Medially and superiorly
• Directly posteriorly only

Q9. How does the labrum affect the effective depth of the acetabulum?

• It removes the superior acetabular rim
• It increases the effective depth of the socket
• It converts the acetabulum into a flat surface
• It replaces the entire lunate surface

Q10. Why is the superior acetabular articular region mechanically important?

• It is entirely nonarticular
• It functions only as a tendon groove
• It receives substantial load during weight bearing
• It never contacts the femoral head