Anterior thigh Flashcards
Muscles of the anterior thigh
Iliacus, Psoas major and minor, Pectineus, Sartorius, Quadriceps femoris
What muscles make up the iliopsoas
Psoas major and iliacus
Origin of psoas major
Lumbar vertebrae
Origin of iliacus
Iliac fossa of pelvis
Attachment of iliopsoas muscles
Lesser trochanter of femur
Action of iliopsoas
Hip flexion,
Assists in lateral rotation at hip
Innervation of iliacus
Femoral nerve (L2-L4)
Origin of pectineus
Pectineal line on anterior pelvis
Attachment of pectineus
Pectineal line on posterior femur, just inferior to lesser trochanter
Action of pectineus
Hip flexion,
Adduction at hip
Innervation of pectineus
Femoral nerve and branch of obturator nerve
Origin of sartorius
ASIS
Attachment of sartorius
Superior medial tibia
Action of sartorius
Abduction, flexion and lateral rotation at hip
Knee flexion
Innervation of sartorius
Femoral nerve (L2-L4)
Innervation of psoas major
Anterior rami of L1-L3
What are the muscles of quadriceps femoris
Vastus medialis, intermedius and lateralis
Rectus femoris
Attachment of quadriceps femoris
Patella ligament which attaches to tibial tuberosity
Origin of vastus medialis
Intertrochanteric line of femur (lateral side)
Origin of vastus intermedius
Anterior lateral femur
Origin of vastus lateralis
Greater trochanter
Origin of rectus femoris
ASIS, superior to acetabulum
Action of quadriceps femoris
Hip flexion (only rectus femoris crosses hip joint) Knee extension
How do you test femoral nerve damage
Patient lies in supine position with knee flexed
Resist patients extension of leg
This tests quadriceps femoris muscles
Action of anterior thigh muscles
Hip flexion,
Knee extension
Innervation of quadriceps femoris
Femoral nerve
