Thigh Flashcards
What is the main action of the Iliopsoas muscle?
Flexes thigh at hip
The Iliopsoas consists of the iliacus and psoas major muscles.
What is the insertion point of the Iliopsoas?
Lesser trochanter of the femur
Which muscles are associated with the Anterior compartment of the Thigh?
- Iliopsoas
- Sartorius
- Quadriceps femoris (Rectus femoris, Vastus lateralis, Vastus medialis, Vastus intermedius)
- Pectineus
What is the primary action of the Sartorius muscle?
Flexes thigh at hip and flexes leg at knee
What is the insertion point of the Sartorius?
Medial tibia
What is the action of the Rectus femoris?
Extends leg at knee and flexes thigh at hip
What is the origin of the Rectus femoris?
Anterior inferior iliac spine
What is the action of the Vastus lateralis?
Extends leg at knee and stabilizes knee
What is the origin of the Vastus lateralis?
Greater trochanter of the femur
What is the insertion point of the Vastus lateralis?
Patella and tibial tuberosity via tendon of quadriceps femoris and patellar ligament
What is the action of the Vastus medialis?
Extends leg at knee and stabilizes patella
What is the origin of the Vastus medialis?
Intertrochanteric line and linea aspera of femur
What is the action of the Vastus intermedius?
Extends leg at knee
What is the origin of the Vastus intermedius?
Shaft of the femur
What is the action of the Pectineus?
Adducts thigh, flexes thigh at hip, and rotates thigh medially
What is the origin of the Pectineus?
Superior ramus of pubis
Fill in the blank: The Iliopsoas muscle also flexes the _______.
vertebral column
True or False: The Quadriceps femoris is composed of four muscles.
True
What are the four muscles that make up the Quadriceps femoris?
- Rectus femoris
- Vastus lateralis
- Vastus medialis
- Vastus intermedius
