Anterior muscles of the thigh Flashcards
(32 cards)
Sartorius Origin
Anterior superior iliac spine
Sartorius Insertion
Upper medial surface of tibial shaft
Sartorius Action
Flexes, abducts, laterally rotates thigh; flexes and medially rotates leg at knee
Sartorius Nerve supply
Femoral nerve
Psoas Major Origin
12th thoracic vertebral body transverse process, bodies and intervertebral disks of lumbar vertebrae
Psoas Major Insertion
Lesser Trochanter
Psoas Major Action
Same as iliacus:
Flexes thigh; if thigh is fixed, it flexes the trunk on the thigh as in sitting up
Psoas Major Nerver Supply
Segmental branches from lumbar plexus
Iliacus Origin
Iliac fossa
Iliacus Insertion
With psoas into lesser trochanter
Iliacus Action
Fexes thigh; if thigh is fixed, it flexes the trunk on the thigh as in sitting up
Iliacus Nerver Supply
Femoral nerve
Pectineus Origin
Superior ramus of pubis
Pectineus Insertion
Upper end shaft of femur
Pectineus Action
Flexes and adducts thigh
Pectineus Nerve Supply
Femoral nerve
Rectus Femoris Origin
Straight head: anterior inferior iliac spine reflected head: ilium just above the acetabulum
Rectus Femoris Insertion
Patella
Rectus Femoris Action
Extension of leg
Rectus Femoris Nerve Supply
Femoral nerve
Vastus Lateralis Origin
Upper end shaft of femur
Vastus Lateralis Insertion
Quadriceps
tendon into
patella
Vastus Lateralis Action
Extension of leg
Vastus Lateralis Nerve Supply
Femoral nerve
