Muscles of the Anterior Thigh (MT) Flashcards
Psoas Major (Iliopsoas) origin
T12 to L5 vertebrae
Psoas Major (Iliopsoas) insertion
lesser trochanter of femur
Psoas Major (Iliopsoas) innervation
L1 - L3 Ventral Rami
Psoas Major (Iliopsoas) action
Hip Flexion (strongest)
Iliacus (Iliopsoas) origin
Iliac Fossa
Iliacus (Iliopsoas) insertion
Lesser trochanter of Femur
Iliacus (Iliopsoas) innervation
Femoral N. (L2-L4)
Iliacus (Iliopsoas) action
Hip Flexion (strongest)
Recturs Femoris (Quadriceps femoris) origin
Straight Head - anterior Iliac spine (AIIS)
Reflected Head - Superior Aspect f Acetabulum
Recturs Femoris (Quadriceps femoris) insertion
Patella and Tibial Tuberosity via the quadriceps tendon and patellar ligament
Recturs Femoris (Quadriceps femoris) innervation
Femoral N. (L2-L4)
Recturs Femoris (Quadriceps femoris) action
Knee Extention, and HIP FLEXION
Vastus Lateralis (Quadriceps femoris) origin
Femur
Vastus Lateralis (Quadriceps femoris) insertion
Patella and Tibial Tuberosity via the quadriceps tendon and patellar ligament
Vastus Lateralis (Quadriceps femoris) innervation
Femoral N (L2-L4)
Vastus Lateralis (Quadriceps femoris) action
Knee Extension
Vastus Intermedius (Quadriceps femoris) origin
Femur
Vastus Intermedius (Quadriceps femoris) insertion
Patella and Tibial Tuberosity via the quadriceps tendon and patellar ligament
Vastus Intermedius (Quadriceps femoris) innervation
Femoral N. (L2-L4)
Vastus Intermedius (Quadriceps femoris) action
Knee extension
Vastus Medialis (Quadriceps femoris) Origin
Femur
Vastus Medialis (Quadriceps femoris) insertion
Patella and Tibial Tuberosity via the quadriceps tendon and patellar ligament
Vastus Medialis (Quadriceps femoris) innervation
Femoral N. (L2-L1)
Vastus Medialis (Quadriceps femoris) action
Knee Extension
What muscles of the anterior thigh are innervated by the Femoral N?
Iliacus (iliopsoas), Quadriceps Femoris (all), Sartorius
Sartorius origin
Anterior Superior Iliac Spine (ASIS) of Ilium
Sartorius insertion
Pes Anserinus (anterior slip) on medial aspect of the Tibia
Sartorius innervation
Femoral N. (L2-L4)
Sartorius action
Hip Flexion, abduction of Thigh, Lateral rotation of the Thigh, Knee Flexion
What muscles of the anterior thigh act in hip flexion?
Iliopsoas (stongest), Rectus Femoris (weak), Sartorius
What muscles of the anterior thigh act in knee extension?
Quadriceps Formoris