Set 6

Question 1

Biceps Femoris

Innervation

Answer 1

Long head:
Sciatic (Tib Div) S1-3

Short head:
Sciatic (Fib Div) L5 S1,2

Question 2

Biceps Femoris

Primary Open Action

Answer 2

Long head:

• Hip extension
• Knee flexion and ER

Short head:
-Knee flexion and ER

With Semitendinosus and Semimembranosus, is PRIMARY KNEE FLEXOR

Question 3

Biceps Femoris

Secondary Open Action

Answer 3

Hip ER

Question 4

What are the PRIMARY KNEE FLEXORS?

Answer 4

Biceps Femoris, Semimembranosus, Semitendinosus

Question 5

Semitendinosus

Innervation

Answer 5

Sciatic (Tib div) L5 S1,2

Question 6

Semitendinosus

Primary Open Actions

Answer 6

• Hip extension
• Knee flexion and IR

With Biceps Femoris and Semimembranosus is PRIMARY KNEE FLEXOR

Question 7

Semitendinosus

Secondary Open Action

Answer 7

Hip IR

Question 8

Semimembranosus

Innervation

Answer 8

Sciatic (Tib div) L5 S1,2

Question 9

Semimembranosus

Primary Open Action

Answer 9

• Hip extension
• Knee flexion and IR of leg

With Semitendinosus and Biceps Femoris is PRIMARY KNEE FLEXOR

Question 10

Rectus Femoris

Innervation

Answer 10

Femoral L2-4

Question 11

Rectus Femoris

Primary Open Action

Answer 11

Knee (leg) extension

Question 12

Rectus Femoris

Secondary Open Action

Answer 12

Hip (thigh) flexion

Question 13

Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Innervation

Answer 13

Femoral L2-4

Question 14

Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Primary Open Chain

Answer 14

Knee (leg) extension

Combined, PRIMARY KNEE EXTENSORS

Question 15

Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Secondary Open Chain

Answer 15

N/A

Question 16

What are the PRIMARY KNEE EXTENSORS?

Answer 16

Vastus Lateralis
Vastus Medialis
Vastus Intermedius

Question 17

Articularis Genu

Innervation

Answer 17

Femoral L2-4

Question 18

Articularis Genu

Primary Open Chain

Answer 18

Pulls capsule proximal preventing synovial membrane entrapment during knee extension

Question 18

Articularis Genus

Secondary Open Action

Answer 18

N/A

Question 19

Gastrocnemius

Innervation

Answer 19

Tibial S1,2

Question 21

Gastrocnemius

Primary Open Chain

Answer 21

• Plantar flexion of ankle

- PRIMARY ANKLE PLANTAR FLEXOR

Question 22

Gastrocnemius

Secondary Open Chain

Answer 22

Assists in knew flexion

Question 23

Soleus

Innervation

Answer 23

Tibial S1,2

Question 24

Soleus

Primary Open Action

Answer 24

Plantar flexion of ankle

Question 25

Soleus | Secondary Open Action

Answer 25

N/A

Question 26

Plantaris | Innervation

Answer 26

Tibial L4,5 S1

Question 27

Plantaris | Secondary Open Action

Answer 27

Weak accessory to knee flexion

Question 28

Popliteus | Innervation

Answer 28

Tibial L4,5 S1

Question 29

Popliteus | Primary Open Action

Answer 29

IR of leg, unlocking knee from extended position

Question 30

Popliteus | Secondary Open Action

Answer 30

Knee flexion

Question 31

Tibialis Posterior | Innervation

Answer 31

Tibial L5S1

Question 32

Tibialis Posterior | Primary Open Action

Answer 32

- Foot (ankle) inversion - Foot (ankle) plantar flexion * PRIMARY FOOT INVERTER/SUPINATOR

Question 33

Tibialis Posterior | Secondary Open Action

Answer 33

N/A

Question 35

``` Fibularis Longus (Peroneus Longus) Innervation ```

Answer 35

Superficial Fibular (L4,5 S1)

Question 36

``` Fibularis Longus (Peroneus Longus) Secondary Open Action ```

Answer 36

Depression of the first metatarsal

Question 37

``` Fibularis Brevis (Peroneus Brevis) Innervation ```

Answer 37

Superficial Fibular (L4,5 S1)

Question 38

``` Fibularis Brevis (Peroneus Brevis) Primary Open Action ```

Answer 38

Ankle eversion

Question 39

``` Fibularis Brevis (Peroneus Brevis) Secondary Open Action ```

Answer 39

Accessory to ankle plantarflexion

Question 40

``` Fibularis Tertius (Peroneus Tertius) Innervation ```

Answer 40

Deep Fibular L4,5 S1

Question 41

``` Fibularis Tertius (Peroneus Tertius) Primary Open Chain ```

Answer 41

- Eversion of foot | - Ankle dorsiflexion

Question 42

``` Fibularis Tertius (Peroneus Tertius) Secondary Open Action ```

Answer 42

N/A

Question 43

Tibialis Anterior | Innervation

Answer 43

Deep Fibular L4,5 S1

Question 44

Tibialis Anterior | Primary Open Action

Answer 44

Ankle dorsiflexion and inversion PRIMARY ANKLE DORSIFLEXOR

Question 45

Tibialis Anterior | Secondary Open Action

Answer 45

N/A

Question 46

``` Fibularis Longus (Peroneus Longus) Primary Open Action ```

Answer 46

Foot (ankle) eversion and plantarflexion PRIMARY FOOT EVERTER/PRONATOR