Knee Joint Musculatore

Question 1

4 muscles in Quadriceps

Answer 1

Rectus Femoris
Vastus Lateralis
Vastus Medialis
Vastus Intermedius

Question 2

3 muscles of the Pes Anserinus

Answer 2

Sartorius
Gracilis
Semitendinosus

Question 3

Rectus Femoris (Origin/Insertion)

Answer 3

1) AIIS 2) Ilium above acetabulum

Common tendon into upper border of patella

Question 4

Vastus Lateralis (Origin/Insertion)

Answer 4

1) Lateral lip of linea aspera 2) Lateral intermuscular septum

Common tendon into upper border of patella

Question 5

Vastus Medialis (Origin/Insertion)

Answer 5

1) Lower anterior part of intertrochanteric line 2) Medial lip of linea aspera

Common tendon into upper border of the patella

Question 6

Vastus Intermedius (Origin/Insertion)

Answer 6

Anterior and lateral surface femur

Common tendon into upper border of patella

Question 7

Sartorius (Origin/Insertion)

Answer 7

ASIS

Upper medial surface of tibia (pes)

Question 8

Gracilis (Origin/Insertion)

Answer 8

1) Body of pubis 2) Inferior ramus of pubis

Tibia, below medial condyle (pes)

Question 9

Semitendinosus (Origin/Insertion)

Answer 9

1) Body of pubis 2) Inferior ramus of pubis

Tibia, below medial condyle (pes)

Question 10

Semimembranosus (Origin/Insertion)

Answer 10

Ischial tuberosity

Posterior aspect of medial tibial condyle

Question 11

Biceps Femoris (Origin/Insertion)

Answer 11

Long head: Ischial tuberosity
Short head: Lateral lip of linea aspera

1) Head of fibula 2) Lateral tibial condyle

Question 12

Gastrocnemius (Origin/Insertion)

Answer 12

1) Medial head to medial femoral condyle 2) Lateral head to lateral femoral condyle

Calcaneus via tendocalcaneus

Question 13

Plantaris (Origin/Insertion)

Answer 13

Lateral epicondyle of femur

Tendocalcaneus via ribbon like tendon

Question 14

Popliteus (Origin/Insertion)

Answer 14

Lateral condyle

Posterior tibia above soleal line

Question 15

Rectus femoris (Innervation)

Answer 15

Femoral

Question 16

Vastus Lateralis (Innervation)

Answer 16

Femoral

Question 17

Vastus Medialis (Innervation)

Answer 17

Femoral

Question 18

Vastus Intermedius (Innervation)

Answer 18

Femoral

Question 19

Sartorius (Innervation)

Answer 19

Femoral

Question 20

Gracilis (Innervation)

Answer 20

Obturator

Question 21

Semitendinosus (Innervation)

Answer 21

Tibial part of sciatic

Question 22

Semimembranosus (Innervation)

Answer 22

Tibial part of sciatic

Question 23

Biceps Femoris (Innervation)

Answer 23

Long head: Tibial part of sciatic

Short head: Common peroneal part of sciatic

Question 24

Gastrocnemius (Innervation)

Answer 24

Tibial

Question 25

Plantaris (Innervation)

Answer 25

Tibial

Question 26

Popliteus (Innervation)

Answer 26

Tibial

Question 27

Rectus Femoris (Action)

Answer 27

1) Extends knee

2) Flexes hip

Question 28

Vastus Lateralis (Action)

Answer 28

Extends knee

Question 29

Vastus Medialis (Action)

Answer 29

Extends knee

Question 30

Vastus Intermedius (Action)

Answer 30

Extends knee

Question 31

Sartorius (Action)

Answer 31

1) Flexes hip
2) ER of hip
3) Flexes knee

Question 32

Gracilis (Action)

Answer 32

1) Adducts hip
2) Flexes hip
3) Flexes knee

Question 33

Semitendinosus (Action)

Answer 33

1) Extends hip
2) Flexes knee
3) IR leg knee and hip

Question 34

Semimembranosus (Action)

Answer 34

1) Extends hip
2) Flexes knee
3) IR leg knee and hip

Question 35

Biceps Femoris (Action)

Answer 35

1) Extends hip
2) Flexes knee
3) Strongly ER leg and hip

Question 36

Gastrocnemius (Action)

Answer 36

1) Plantarflexion

2) Knee flexion

Question 37

Plantaris (Action)

Answer 37

1) Weak plantar flexion

2) Knee flexion

Question 38

Popliteus (Action)

Answer 38

1) Flexes knee

2) Unlocks knee from tibial extension