Anterior Thigh Flashcards
Name all 8 muscles in the anterior thigh compartment
- Pectineus
- Sartorius
- Psoas major
- Iliacus
- Rectus femoris
- Vastus lateralis
- Vastus medialis
- Vastus intermedialis
What two muscles make up the iliopsoas?
Iliacus
Psoas major
What muscles make up the quadriceps femoris?
Rectus femoris
Vastus medialis
Vastus lateralis
Vastus intermedialis
What nerve innervates the anterior thigh muscles? And what muscle is the exception?
Femoral nerve - L2, L3, L4
Except psoas major - L1, L2, L3
What muscles are thigh flexors?
Pectineus
Sartorius
Iliopsoas
What muscles are leg extensors?
Quadriceps femoris
What do the tendons of the four parts of the quadriceps unite to form?
Quadriceps tendon
What ligament is a continuation of the quadriceps tendon?
Patellar ligament
What is the origin and insertion of the pectineus?
Origin: Pubic rami
Insertion: Femur
What is the origin and insertion of the sartorius?
Origin: ASIS
Insertion: Tibia
What is the origin and insertion of the psoas major?
Origin: Vertebrae
Insertion: Lesser trochanter of femur
What is the origin and insertion of the iliacus?
Origin: Iliac crest
Insertion: Lesser trochanter of femur
What is the origin and insertion of the rectus femoris?
Origin: ASIS
Insertion: Patella (via quadraceps tendon) then tibial tuberosity
What is the origin and insertion of the vastus muscles?
Origin: Femur shaft
Insertion: Patella (via quadriceps tendon) then tibial tuberosity
What is the quadriceps femoris?
The name given to a group of 4 muscles in the anterior thigh: Rectus femoris Vastus lateralis Vastus medialis Vastus intermedialis
(don’t get this confused with the QUADRATUS femoris!!!!)
