Muscles - Anterior Thigh Flashcards
Iliopsoas M.
- Psoas Major m.
- Iliacus m.
Main flexors of the thigh
Psoas Major m.
O: T12-L5
I: Lesser Trochanter of Femur
A: Flex thigh / balance/flex trunk / laterally flex vertebral column
BS: Iliolumbar A.
N: Ventral Rami (L1-L3)
Iliacus m.
O: Superior Iliac Fossa
I: Lesser Trochanter of Femur
A: Flex thigh / stabilize acetabulofemoral joint
BS: Deep Circumflex Iliac A.
N: Femoral N (L2-L4)
Quadriceps Femoris M.
Rectus femoris m
vastus lateralis m
vastus intermedius m
vastus medialis
Rectus femoris m
O: AIIS (anterior inferior iliac spine)
I: Tibial Tuberosity (via quadriceps tendon to Patella, Patellar L.)
A: Extend Leg, Flex thigh (help iliopsoas m)
BS: Lateral Circumflex Femoral A
N: Femoral N.
Anterior Thigh Muscles overview (nerve, artery, action)
femoral n
deep femoral a
flex thigh, extend leg
vastus lateralis m
O: Greater Trochanter
I: Tibial Tuberosity (via quadriceps tendon to Patella, Patellar L.)
A: Extend leg
BS: Deep femoral A
N: Femoral N
vastus lateralis m
O: Shaft of femur
I: Tibial Tuberosity (via quadriceps tendon to Patella, Patellar L.)
A: Extend leg
BS: Deep femoral A
N: Femoral N
vastus medialis m
O: Medial lip of linea aspera
I: Tibial Tuberosity (via quadriceps tendon to Patella, Patellar L.)
A: Extend leg
BS: Deep femoral A
N: Femoral N
Pes Anserinus Ms.
Satorious m.
Gracilis m
Semitendinosus m.
Sartorious m
“Tailor muscle” – so named because of action
O: AIIS (anterior superior iliac spine)
I: Pes anserinus (anteroinferior to medial condyle of tibia)
A: -Flex, abduct and laterally rotate thigh
-Flex leg
BS: Deep femoral a
N: Femoral N.
Articularis genu m
O: Anterior surface of distal femur
I: Articular capsule of knee
A: Tighten capsule of knee during leg extension
N: Femoral N.
BS: Deep femoral A
