AFL3

Question 1

Label

Answer 1

1 - iliac crest

2 - ASIS

3 - greater sciatic notch

4 - ischial spine

5 - acetabulum

6 - AIIS

7 - ischial tuberosity

8 - greater trochanter

9 - inferior pubic ramus

Question 2

What are the movements of muscle A? Where does it insert?

Answer 2

• Extends the hip
• Laterally rotates the hip
• Inserts on the gluteal tuberosity and iliotibial tract

Question 3

Structure 5 indicates which ligament?

Answer 3

Sacrotuberous ligament

Question 4

Nerve 5 is composed of fibres from which spinal nerves?

Answer 4

L4-S3

Question 5

What is the action of muscle 4? Where does it insert?

Answer 5

?

Question 6

Which of the following muscles insert into the region indicated by number 2?

Answer 6

Obturator externus, obturator internus (tendon), inferior and superior gemelli

Question 7

Muscle 2 is innervated by which nerve?

Answer 7

Superior gluteal nerve

Question 8

How does muscle 7 act on the hip?

Answer 8

Lateral rotator,

Question 9

What are the actions of muscle 2? Where does it insert?

Answer 9

Gluteus medius:

• Abducts the hip
• Medially rotates the hp
• Inserts on the greater trochanter

Question 10

What is vessel 1? What is it a branch of?

Answer 10

Superior gluteal artery - branch of the internal iliac artery

Question 11

In this patient, the abnormal position of their right leg is typical of what injury?

Answer 11

Posterior displacement of head of femur

Question 12

Label A, B and C. What is the strongest? What is the function of A? Wht is the function of B?

Answer 12

A - pubofemoral

B - iliofemoral

C - ischiofemoral

Function of pubofemoral - prevents excessive abduction

Function of iliofemoral - prevents hyperextension

Question 13

Label

Answer 13

1 - TFL

2 - sartorius

3 - iliopsoas

4 - pectineus

5 - rectus femoris

6 - adductor longus

7 - vastus lateralis

8 - adductor magnus

9 - gracilis

11 - quadriceps tendon

12 - vastus medialis

Question 14

Function of 1-6, 8 and 9?

Answer 14

• 1: TFL - flexes the hip, stabilises the knee via the iliotibial tract
• 2: Sartorius - flexes and laterally rotates the hip, flexes the knee
• 3: Iliopsoas - chief flexor of the hip, forms the lateral part of the floor of the femoral triangle
• 4: Pectineus - flexes the hip, forms the medial part of the floor of the femoral triangle
• 5: Rectus femoris - flexes the hip and extends the knee
• 6: Adductor longus - adducts the hip, forms the medial border of the femoral triangle
• 8: Adductor magnus - adducts the hip and forms the adductor hiatus
• 9: Gracilis - weakly adducts the hip and weakly flexes the knee

Question 15

What is the structure indicated by 6 and A?

Answer 15

?

Question 16

What is muscle 3? What are its actions? Where does it originate? What is its innervation? What nerve is seen in this photo?

Answer 16

Pectineus:

• Adducts the hip
• Flexes the hip
• Innervated by the femoral nerve
• Originates from the superior pubic ramus

Question 17

Label

Answer 17

1 - Iliopsoas

2 - Sartorius

3 - Pectineus

4 - Obturator externus

5 - Adductor brevis

6 - Adductor magnus

7 - Gracilis

Question 18

What is 1-7? What are the actions of each?

Answer 18

• 1: Iliopsoas - flexor of the hip
• 2: Obturator externus - laterally rotates the hip
• 3: Rectus femoris - extends the knee and flexes the hip
• 4: Adductor magnus - adducts the hip
• 5: Vastus lateralis - extends the knee
• 6: Vastus medialis - extends the knee
• 7: Gracilis - weakly flexes the knee and weakly adducts the hip

Question 19

Where does vastus lateralis originate from?

Answer 19

The greater trochanter and linea aspera

Question 20

Where does vastus medialis originate from?

Answer 20

The intertrochanteric line and linea aspera

Question 21

What inserts here? What is its action? What is it innervated by?

Answer 21

Hamstring part of adductor magnus:

• Inserts on the adductor tubercle
• Innervated by the tibial nerve
• Adduct the thigh
• Extend the thigh