Muscle Attachments and Insertions-Lab Practical 3 Flashcards
Gluteus maximus origin
Iliac crest, posterior gluteal line
Gluteus maximus insertion
Gluteal tuberosity of the femur, iliotibial tract
Gluteus maximus action
Major hip extensor
Gluteus medius origin
Iliac crest
Gluteus medius insertion
Greater trochanter
Gluteus medius action
Abduction at the hip
Tensor fasciae latae origin
Anterior superior iliac spine
Tensor fasciae latae insertion
Iliotibial tract
Tensor fasciae latae action
- Flexion
2. Medial rotation of hip
Obturators (internus and externus) origin
Obturator foramen (both)
Obturators (internus and externus) insertion
Intertrochanteric fossa (externus) Greater trochanter (internus
Obturators (internus and externus) action
Lateral rotation of hip
Piriformis origin
Anterior lateral border of the sacrum
Piriformis insertion
Greater trochanter
Piriformis action
Lateral rotation of hip
Quadrates femoris origin
Ischial tuberosity
Quadrates femoris insertion
Intertrochantric crest
Quadrates femoris action
Lateral rotation at hip
Adductor longus origin
Inferior ramus of the of the pubis
Adductor longus insertion
Linea asperia of femur
Adductor longus action
Adduction and flexion of hip
Adductor magnus origin
Ischial tuberosity
Adductor magnus insertion
Linea aspera and adductor tubercle
Adductor magnus action
Adduction and flexion of the hip
Gracilis origin
Inferior ramus of the pubis
Gracilis insertion
Medial surface of the tibia
Gracilis action
- Adduction and medial rotation at the hip
2. Flexion at the knee
Iliacus origin
Entire surface of the iliac fossa
Iliacus insertion
Lesser trochanter
Iliacus action
Flexion at the hip
Psoas origin
T12 – L5 vertebrae
Psoas insertion
Lesser trochanter
Psoas action
Flexion at the hip
Biceps femoris origin
Ishcial tuberosity and linea aspera
Biceps femoris insertion
Head of fibula and lateral condyle of tibia
Biceps femoris action
- Flexion at the knee
2. Extension at the hip
Semitendinosus origin
Ischial tuberosity
Semitendinosus insertion
Proximal medial surface of the tibia
Semitendinosus action
- Flexion at the knee
2. Extension at the hip
Semimembranosus origin
Ischial tuberosity
Semimembranosus insertion
Medial condyle of the tibia
Semimembranosus action
- Flexion at the knee
2. Extension at the hip
Sartorius origin
Anterior superior iliac spine
Sartorius insertion
Medial surface of the tibia
Sartorius action
Flexion at the knee
Rectus femoris origin
Anterior inferior iliac spine
Rectus femoris insertion
Tibial tuberosity via the patellar ligament
Rectus femoris action
- Extension at the knee
2. Flexion of the hip
Vastus intermedius origin
Anterior and lateral surfaces of the femur
Vastus intermedius insertion
Tibial tuberosity via the patella ligament
Vastus intermedius action
Extension at the knee
Vastus lateralis origin
Linea aspera
Vastus lateralis insertion
Tibial tuberosity via the patellar ligament
Vastus lateralis action
Extension at the knee
Vastus medialis origin
Linea aspera
Vastus medialis insertion
Tibial tuberosity via the patella ligament
Vastus medialis action
Extension at the knee
Tibialis anterior origin
Lateral condyle of the tibia
Tibialis anterior insertion
1st metatarsal and medial cuneiform
Tibialis anterior actions
Dorsiflexion at the ankle
Gastrocnemius origin
Femoral condyles
Gastrocnemius insertion
Calcaneus via the calcaneal tendon
Gastrocnemius action
Plantar flexion at the ankle
Fibularis longus origin
Head and proximal shaft of the fibula
Fibularis longus insertion
Medial cuneiform the first metatarsal
Fibularis longus action
Plantar flexion and eversion at the ankle
Soleus origin
Head and proximal shaft of the fibula and tibia
Soleus insertion
Calcaneus via the calcaneal tendon
Soleus action
Plantar flexion at the ankle
Fibularis brevis origin
Midlateral fibular shaft
Fibularis brevis insertion
5th metatarsal
Fibularis brevis action
Plantar flexion and eversion (turning outward) at the ankle
Tibialis posterior origin
Posterior surface of the tibia and fibula
Tibialis posterior insertion
Tarsal and metatarsals bones
Tibialis posterior action
Plantar flexion and inversion