Thigh Flashcards
List the anterior muscles of the thigh
Sartorius
Iliopsoas
Pectineus
Quadriceps femoris
What is the origin and insertion of sartorius?
ASIS of pelvic bone
Anteromedial surface of superior tibia
What is the nerve + arterial supply to sartorius?
Femoral nerve
Femoral artery
What movements does sartorius enable?
Hip: flexion, abduction, lateral rotation
Knee: flexion
Which 2 muscles make up the iliopsoas muscle?
Iliacus
Psoas major
What is the origin and insertion of iliacus?
Iliac fossa
Lesser trochanter of femur
What is the origin and insertion of psoas major?
Lumbar spine (transverse processes) Lesser trochanter of femur
What is the nerve + arterial supply to iliopsoas?
Femoral nerve
Medial femoral circumflex artery
Which movements does iliopsoas enable?
Hip: flexion
What is the origin and insertion of pectineus?
Pectineal line of pubic bone
Pectineal line of femur
What is the nerve + arterial supply to pectineus?
Femoral nerve
Obturator artery
Which movements does pectineus enable?
Thigh: flexion, adduction
Which 4 muscles make up the quadriceps femoris muscle?
Rectus femoris
Vastus intermedius
Vastus medius
Vastus lateralis
What is the origin and insertion of quadriceps femoris?
Shaft of femur
Patella
What is the nerve + arterial supply to quadriceps femoris?
Femoral nerve
Femoral artery
Which movements does quadriceps femoris enable?
Knee: extension
Hip: flexion
What is the main nerve supply to the anterior thigh muscles?
Femoral nerve (L2-L4)
List the medial muscles of the thigh
Adductor longus Adductor brevis Adductor magnus Obturator externus Gracilis
What is the origin and insertion of adductor longus?
Pubic body
Linea aspera of femur
What is the nerve + arterial supply to adductor longus?
Obturator nerve
Deep femoral artery
Which movements does adductor longus enable?
Hip: adduction, flexion
What is the origin and insertion of adductor brevis?
Pubic body
Linea aspera of femur
What is the nerve + arterial supply to adductor brevis?
Obturator nerve
Deep femoral artery
Which movements does adductor brevis enable?
Hip: adduction
What is the origin and insertion of adductor magnus?
Ischiopubic ramus
Linea aspera of femur/adductor tubercle of femur
What is the nerve + arterial supply to adductor magnus?
Obturator nerve
Tibial nerve (hamstring part)
Deep femoral artery
Which movements does adductor magnus enable?
Hip: adduction, flexion, extension
What is the origin and insertion of obturator externus?
Obturator foramen
Trochanteric fossa of femur
What is the nerve + arterial supply to obturator externus?
Obturator nerve
Obturator artery
Which movements does obturator externus enable?
Thigh: adduction, lateral rotation
What is the origin and insertion of gracilis?
Pubic symphysis
Superomedial tibia
What is the nerve + arterial supply to gracilis?
Obturator nerve
Medial circumflex femoral artery
Which movements does gracilis enable?
Hip: flexion, adduction, medial rotation
What is the main nerve supply to the medial thigh muscles?
Obturator nerve (L2-L4)
List the posterior muscles of the thigh
Semimembranosus
Semitendinosus
Biceps femoris
What is the origin and insertion of semitendinosus?
Ischial tuberosity
Tibial tuberosity
What is the nerve + arterial supply to semitendinosus?
Tibial nerve
Inferior gluteal artery
Which movements does semitendinosus enable?
Knee: flexion
Hip: extension
What is the origin and insertion of semimembranosus?
Ischial tuberosity
Medial condyle of tibia
What is the nerve + arterial supply to semimembranosus?
Tibial nerve
Deep femoral artery
Which movements does semimembranosus enable?
Knee: flexion
Hip: extension
What is the origin and insertion of the long head of biceps femoris?
Ischial tuberosity
Head of fibula
What is the origin and insertion of the short head of biceps femoris?
Linea asper of femur
Head of fibula
What is the nerve + arterial supply to biceps femoris?
Tibial nerve [long head]
Common fibular nerve [short head]
Deep femoral artery
Which movements does biceps femoris enable?
Knee: flexion, lateral rotation
Hip: extension
What is the main nerve supply to the posterior thigh muscles?
Tibial nerve