Set 6 Flashcards
Biceps Femoris
Innervation
Long head:
Sciatic (Tib Div) S1-3
Short head:
Sciatic (Fib Div) L5 S1,2
Biceps Femoris
Primary Open Action
Long head:
- Hip extension
- Knee flexion and ER
Short head:
-Knee flexion and ER
With Semitendinosus and Semimembranosus, is PRIMARY KNEE FLEXOR
Biceps Femoris
Secondary Open Action
Hip ER
What are the PRIMARY KNEE FLEXORS?
Biceps Femoris, Semimembranosus, Semitendinosus
Semitendinosus
Innervation
Sciatic (Tib div) L5 S1,2
Semitendinosus
Primary Open Actions
- Hip extension
- Knee flexion and IR
With Biceps Femoris and Semimembranosus is PRIMARY KNEE FLEXOR
Semitendinosus
Secondary Open Action
Hip IR
Semimembranosus
Innervation
Sciatic (Tib div) L5 S1,2
Semimembranosus
Primary Open Action
- Hip extension
- Knee flexion and IR of leg
With Semitendinosus and Biceps Femoris is PRIMARY KNEE FLEXOR
Rectus Femoris
Innervation
Femoral L2-4
Rectus Femoris
Primary Open Action
Knee (leg) extension
Rectus Femoris
Secondary Open Action
Hip (thigh) flexion
Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Innervation
Femoral L2-4
Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Primary Open Chain
Knee (leg) extension
Combined, PRIMARY KNEE EXTENSORS
Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Secondary Open Chain
N/A
What are the PRIMARY KNEE EXTENSORS?
Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Articularis Genu
Innervation
Femoral L2-4
Articularis Genu
Primary Open Chain
Pulls capsule proximal preventing synovial membrane entrapment during knee extension