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AP Muscle Wrksht III
| Question | Answer |
|---|---|
| Gluteus medius | Attachments: illium, femur; Action: abducts and rotates thigh medially |
| Gluteus maximus | Attachments: sacrum, coccyx, illium, femur, fascia of thigh; Action: extends hip |
| Psoas major | Attachments: lumbar IVD, lumbar vertebrae, femur; Action: flexes thigh |
| Iliacus | Attachments: illium, femur; Action: flexes thigh |
| Iliopsoas | Attachments: lumbar IVD, lumbar vert., illium, femur; Action: flexes thigh |
| Sartorius | Attachments: illium, tibia; Action: flexes knee and hip, abducts and rotates thigh laterally |
| Rectus femoris | Attachments: illium, acetabulum, patella, tibia; Action: extends knee |
| Vastus lateralis | Attachments: femur, patella, tibia; Action: extends knee |
| Vastus intermedialis | Attachments: femur, patella, tibia; Action: extends knee |
| Vastus medialis | Attachments: femur, patella, tibia; Action: extends knee |
| Tensor fasciae latae | Attachments: illium, fascia of thigh; Action: abducts, flexes, and rotates thigh medially |
| Biceps femoris | Attachments: femur, ischium, fibula, tibia; Action: flexes knee, rotates leg laterally, extends thigh |
| Semimembranosus | Attachments: ischium, tibia; Action: flexes knee, rotates leg medially, extends thigh |
| Semitendinosus | Attachments: ischium, tibia; Action: flexes knee, rotates leg medially, extends thigh |
| Gracilis | Attachments: symphysis pubis, tibia; Action: adducts thigh and flexes knee |
| Adductor magnus | Attachments: ischium, femur; Action: adducts thigh, post. portion extends and anter. portion flexes thigh |
| Adductor longus | Attachments: pubic bone near symphysis pubis, femur; Action: adducts, flexes, and rotates thigh laterally |
| Pectineus | Attachments: pubic bone (spine), femur; Action: flexes and adducts thigh |
| Tibialis anterior | Attachments: tibia, cuneiform and first metatarsal; Action: dorsiflexion and eversion of foot |
| Extensor digitorum longus | Attachments: tibia and fibula, 2nd and 3rd phalanges of 4 lateral toes; Action: dorsiflexion and eversion of foot, extends toes |
| Peroneus (fibularis) longus | Attachments: tibia and fibula, tarsal and metatarsal bones; Action: plantar flexion and eversion of foot, supports arch |
| Peroneus (fibularis) brevis | Attachments: tibia, fibula, tarsal and metatarsal bones; Action: plantar flexion and eversion of foot, supports arch |
| Gastrocnemius | Attachments: femur, calcaneus; Action: plantar flexion of foot, flexes knee |
| Soleus | Attachments: fibula, tibia, calcaneus; Action: plantar flexion of foot |