The Knee

Question 1

What bones make up the Knee?

Answer 1

Femur, Tibia, Patella

Question 2

What 2 joints make up the Knee?

Answer 2

Tibiofemoral and Patellofemoral

Question 3

What movements occur at the Knee?

Answer 3

Flexion/Extension, Internal/External Rotation

Question 4

What is the function of the Knee?(3)

Answer 4

• Supports body weight
• Transmits force between the femur and tibia
• Provides movement

Question 5

What planes of movement occur at the Knee?

Answer 5

Sagittal plane
Transverse plane

Question 6

What are the key bony landmarks at the Knee?(3)

Answer 6

Femoral condyles, Patella, Tibial articular surfaces

Question 7

What are the connective tissue structures of the Knee? (5)

Answer 7

Medial/Lateral Collateral ligament
Anterior/Posterior Cruciate Ligament
Meniscus

Question 8

Describe the Origin, Insertion, Action and Innervation of the Rectus femoris

Answer 8

Origin: AIIS
Insertion: Tibial tuberosity
Action: Knee extension
Innervation: Femoral nerve

Question 9

Describe the Origin, Insertion, Action and Innervation of the Vastus Medialis

Answer 9

Origin: Medial part of the femur
Insertion: tibial tuberosity
Action: Knee extension
Innervation: Femoral nerve

Question 10

Describe the Origin, Insertion, Action and Innervation of the Vastus lateralis

Answer 10

Origin: Greater trochanter
Insertion: Tibial tuberosity
Action: Knee extension
Innervation: Femoral nerve

Question 11

Describe the Origin, Insertion, Action and Innervation of the Vastus intermedius

Answer 11

Origin: Body of the femur
Insertion: Tibial tuberosity
Action: Knee extension
Innervation: femoral nerve

Question 12

Describe the Origin, Insertion, Action and Innervation of the Popliteus

Answer 12

Origin: Groove in the knee capsule
Insertion: Posterior surface of the tibia
Action: Knee extension
Innervation: Tibial nerve

Question 13

Describe the Origin, Insertion, Action and Innervation of the Tensor fascia latae

Answer 13

Origin: ASIS
Insertion: Iliotibial band
Action: Knee extension
Innervation: Superior gluteal nerve

Question 14

Describe the Origin, Insertion, Action and Innervation of the Gracilis

Answer 14

Origin: Pubis
Insertion: Medial tibial condyle
Action: Knee flexion, Medial/Internal rotation
Innervation: Obturator nerve

Question 15

Describe the Origin, Insertion, Action and Innervation of the Sartorius

Answer 15

Origin: ASIS
Insertion: Medial tibial condyle
Action: Knee flexion, Medial/Internal rotation
Innervation: Femoral nerve

Question 16

Describe the Origin, Insertion, Action and Innervation of the Semitendinosus

Answer 16

Origin: Ischial tuberosity
Insertion: Medial tibial condyle
Action: Knee flexion, Medial/Internal rotators
Innervation: Tibial division sciatic nerve

Question 17

Describe the Origin, Insertion, Action and Innervation of the Semimembranosus

Answer 17

Origin: Ischial tuberosity
Insertion: Medial tibial condyle
Action: Knee flexion, Medial/Internal rotators
Innervation: Tibial division sciatic nerve

Question 18

Describe the Origin, Insertion, Action and Innervation of the Bicep Femoris

Answer 18

Origin: Ischial tuberosity
Insertion: Head of fibula
Action: Knee flexion, External/Lateral rotation
Innervation: Fibular division sciatic nerve

Question 19

Describe the Origin, Insertion, Action and Innervation of the Gastrocnemius (knee)

Answer 19

Origin: Medial/Lateral condyle of the femur
Insertion: Achilles tendon
Action: Knee flexion
Innervation: Tibial nerve

Question 20

What are the Knee flexors?

Answer 20

Bicep Femoris
Semi-T
Semi-M
Sartorius
Gracillis

Question 21

What are the Knee extensors?

Answer 21

Rectus femoris
Vastus Lateralis, Medialis,Intermedius
Tensor Fascia Latae

Question 22

What are the Knee’s medial rotators?

Answer 22

Semi-T
Semi-M
Sartorius
Gracilis

Question 23

What are the Knee’s Lateral rotators?

Answer 23

Bicep femoris