Muscle Attachments, Innervations And Actions (edissector) Flashcards
Pectineus
Anterior Thigh
Prox attachment: Pubis
Distal: Pectineal line of the femur
Innervation: femoral nerve (sometimes obturator)
Action: Adducts/flexes the thigh
Psoas Major
Anterior thigh
Prox: T12 and lumbar vertebral bodies
Distal: Lesser trochanter
Inn: L1-3 anterior rami
Action: Flexes thigh
Psoas Minor
Anterior Thigh
Prox: T12/L1 vertebral bodies
Distal: iliopubic eminence
Inn: L1-2 anterior rami
Action: Flexes thigh
Iliacus
Anterior thigh
Prox: iliac crest/fossa
Distal: Tendon of psoas major/lesser trochanter
Inn: Femoral
Action: flexes thigh
Sartorius
Anterior Thigh
Prox: Anterior Superior Iliac Spine
Distal: Medial surface of proximal tibia
Inn: Femoral Nerve
Action: flexes, abducts,laterally rotates the thigh; flexes leg
Rectus Femoris
Anterior Thigh
Prox: Anterior inferior iliac spine
Distal: patella via quadriceps tendon
Inn: Femoral Nerve
Action: Extends leg/flexes thigh
Vastus Lateralis
Anterior thigh
prox: Greater trochanter and linea aspera
Distal: patella via quadriceps tendon
Inn: Femoral Nerve
Action: extends leg
Vastus Medialis
Anterior thigh
Prox: Intertrochanteric line and linea aspera
Dist: Patella via quadriceps tendon
Inn: Femoral Nerve
Action: extends leg
Vastus Intermedius
Anterior Thigh
Prox: Shaft of femur
Distal: patella via quadriceps tendon
Inn: Femoral Nerve
Action: extends leg
Adductor Longus
Medial Thigh
Prox: pubis
Distal: linea aspera
Inn: Obturator Nerve
Action: adducts thigh
Adductor Brevis
Medial Thigh
Prox: pubis
Distal: Pectineal line/linea aspera
Inn: Obturator Nerve
Action: Adducts thigh
Adductor Magnus: Adductor Part
Medial Thigh
Prox: Ischiopubis ramus
Distal: Shaft of femur
Inn: Obturator Nerve
Adducts/Flexes thigh
Adductor Magnus: Hamstring part
Medial thigh
Prox: Ischial Tuberosity
Distal: Adductor tubercle
Inn: Tibial division of sciatic nerve
Action: Adducts/extends thigh
Gracilis
Medial thigh
Prox: Pubis
Distal: Medial part of proximal tibia
Inn: Obturator Nerve
Action: adducts thigh; flexes/medially rotates leg
Obturator externus (Medial Thigh)
Prox: Obturator Membrane/foramen
Distal: Greater trochanter
Inn: Obturator Nerve
Action: Laterally rotates the thigh
Gluteus Maximus
Gluteal
Prox: ilium and sacrum; sacrotuberous lig.
Distal: iliotibial tract and proximal femur
Inn: Inferior gluteal nerve
Action: extends thigh
Gluteus medius
Gluteal region
Prox: ileum
Distal: Greater trochanter
Inn: Superior gluteal nerve
Action: Abducts/medially rotates the thigh
Gluteus Minimus
Gluteal region
Prox: ilium
Distal: greater trochanter
Inn: Superior gluteal nerve
Action: abduct/medially rotates the thigh
Tensor Fascia Lata
Gluteal
Prox: Anterior Superior Iliac spine
Distal: iliotibial tract
Inn: Superior Gluteal nerve
Action: abducts/medially rotates the thigh
Piriformis
Gluteal
Prox: Anterior surface of the sacrum
Distal: Greater trochanter
Inn: Nerve to piriformis
Action: laterally rotates the thigh
Obturator internus (Gluteal)
Prox: obturator membrane/foramen
Distal: Greater trochanter
Inn: Nerve to obturator internus
Action: Laterally rotates thigh
Superior Gamellus
Gluteal
Prox: ischial spine
Distal: Greater trochanter
Inn: Nerve to obturator internus
Action: Laterally rotates thigh
Inferior Gamellus
Gluteal
Prox: ischial tuberosity
Distal: greater trochanter
Innervation: Nerve to quadratus femoris
Action: lateral rotates thigh
Quadratus femoris
Gluteal
Prox: ischial tuberosity
Distal: intertrochanteric crest
Innervation: nerve to quadratus femoris
Action: laterally rotates the thigh
