Adductor Longus Flashcards

Study adductor longus anatomy, including its pubic origin, femoral insertion, obturator nerve supply, hip movements, and clinical relevance.

Card 1 of 29Question

Which compartment of the thigh contains the adductor longus?

The medial compartment of the thigh.

In This Section

1. Which compartment of the thigh contains the adductor longus?

The medial compartment of the thigh.

2. What is the general shape of the adductor longus muscle?

A triangular, fan-shaped muscle that broadens toward its femoral insertion.

3. Which pelvic bone provides the origin of adductor longus?

The pubis.

4. What is the specific proximal attachment of adductor longus?

The anterior body of the pubis, inferior to the pubic crest and near the pubic symphysis.

5. Where does adductor longus insert on the femur?

The middle third of the linea aspera, primarily along its medial lip.

6. In which general direction do the adductor longus fibers travel?

Inferolaterally from the pubis toward the middle of the femoral shaft.

7. What is the primary action of adductor longus?

Adduction of the thigh at the hip joint.

8. Which sagittal plane movement can adductor longus assist?

Hip flexion, particularly from an extended position.

9. Which joint is crossed by adductor longus?

The hip joint.

10. Which nerve innervates adductor longus?

The anterior division of the obturator nerve.

11. Which spinal nerve roots contribute to adductor longus innervation?

L2, L3, and L4.

12. From which nerve plexus does the obturator nerve arise?

The lumbar plexus.

13. Through which opening does the obturator nerve enter the medial thigh?

The obturator canal.

14. Which artery is a major source of blood supply to adductor longus?

The profunda femoris artery, through its muscular and perforating branches.

15. Which additional artery contributes to the blood supply of adductor longus?

The obturator artery.

16. Which venous system primarily drains adductor longus?

The profunda femoris and femoral venous systems.

17. Which anatomical space has adductor longus as its medial boundary?

The femoral triangle.

18. Which muscle lies immediately deep to much of adductor longus?

Adductor brevis.

19. Which long, slender muscle lies medial to adductor longus in the proximal thigh?

Gracilis.

20. Which superficial thigh muscle lies lateral to the proximal adductor longus?

Sartorius.

21. What is the relationship of the anterior division of the obturator nerve to adductor longus?

It passes deep to adductor longus and superficial to adductor brevis.

22. Which fascial structure covers the superficial surface of adductor longus?

The fascia lata.

23. How does adductor longus help stabilize the pelvis during movement?

It contributes to hip stability by controlling frontal plane movement of the thigh.

24. How is adductor longus strength commonly tested?

By asking the patient to adduct the thigh against resistance.

25. Which athletic movements commonly place high loads on adductor longus?

Kicking, sprinting, rapid changes of direction, and lateral cutting.

26. Which region of adductor longus is commonly affected by acute groin strains?

The proximal musculotendinous region near its pubic attachment.

27. What functional deficit may result from obturator nerve injury affecting adductor longus?

Weakness of thigh adduction.

28. Which clinical examination finding may indicate adductor longus tendinopathy?

Pain near the pubic attachment during resisted hip adduction.

29. Which imaging modalities are useful for evaluating adductor longus muscle and tendon injuries?

Musculoskeletal ultrasound and magnetic resonance imaging (MRI).