Ant thigh muscles

Question 1

sartorius- O, I, A, IN

Answer 1

O- ASIS, notch below spine

I- Prox med surface of tibia shaft

IN- N to sartorius L2,3

A- flex thigh + Leg, lat rotates + abducts thigh/leg

Question 2

Rectus femoris- O, I, A, IN

Answer 2

O- AIIS, illium sup to acetabulum, fibrous capsule of hip joint

I- common tendon

In- nerve to rectus femoris L2,3,4

A- extends leg, flexes thigh, stabilizes patella

Question 3

Vastus lateralis- O, I, A, IN

Answer 3

O- Greater trochanter, prox 2/3 intertroch line, lat lip aspera, lat intramuscular septum

I- common tendon

IN- nerve to vastus lat L2,3,4

A- extend leg, stabilize patella

Question 4

Vastus medialis- O, I, A, IN

Answer 4

O- medial lip linea aspera, inf 1/3 intertroch line, spiril line, med intramuscular septum

I- common tendon

IN- N to vastus me L2,3,4

A- Extend leg, stabilize patella

Question 5

Vastus intermedius- O, I, IN, A

Answer 5

O- ant+lat surface of prox 2/3 femoral shaft + lap lip

I- common tendon

IN- n to vastus interm L2,3,4

A- extend leg, stabilize pelvis

Question 6

articularis genus- O, I, IN, A

Answer 6

O- ant inf part of femoral shaft

I- synovial membrane of knee

IN- nerve to vastus intermedius (l2,3)

A- retracts synovial supra patellar reflection from entrapment