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BONUS:
origin and insertions of LL!!!
| Question | Answer |
|---|---|
| gluteus maximus origin | ilium, sacrum, coccyx |
| gluteus maximus insertion | iliotibial tract, gluteal tuberosity |
| gluteus maximus action | hip extension, lateral rotation |
| gluteus maximus innervation | inferior gluteal nerve |
| gluteus medius origin | ilium |
| gluteus medius insertion | greater trochanter of femur |
| gluteus medius action | hip abduction, medial rotation |
| gluteus medius innervation | superior gluteal nerve |
| gluteus minimus origin | ilium |
| gluteus minimus insertion | greater trochanter of femur |
| gluteus minimus action | hip abduction, medial rotation |
| gluteus minimus innervation | superior gluteal nerve |
| tensor fasciae latae origin | ASIS (anterior superior iliac spine) |
| tensor fasciae latae insertion | iliotibial tract |
| tensor fasciae latae action | stabilises hip/knee |
| tensor fasciae latae innervation | superior gluteal nerve |
| rectus femoris origin | AIIS (anterior inferior iliac spine) |
| rectus femoris insertion | Tibial tuberosity |
| rectus femoris action | Knee extension, hip flexion |
| rectus femoris innervation | femoral nerve |
| Vastus lateralis origin | Greater trochanter |
| Vastus lateralis insertion | Tibial tuberosity |
| Vastus lateralis action | Knee extension |
| innervation | femoral nerve |
| gluteal region muscles (4) | gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae |
| vastus medialis origin | Linea aspera |
| vastus medialis insertion | Tibial tuberosity |
| vastus medialis action | Knee extension |
| vastus medialis innervation | femoral nerve |
| vastus intermedius origin | femur |
| vastus intermedius insertion | Tibial tuberosity |
| vastus intermedius action | knee extension |
| vastus intermedius innervation | femoral nerve |
| sartorius origin | ASIS (anterior superior iliac spine) |
| sartorius insertion | medial tibia |
| sartorius action | Hip flexion, abduction, lateral rotation |
| sartorius innervation | femoral nerve |
| muscles in the anterior thigh (5) | rectus femoris, vastus lateralis, vastus medialis, vastus intermedius, and sartorius |
| muscles in the medial thigh (5) | adductor longus, adductor brevis, adductor magnus, gracilis, and obturator externus |
| adductor longus origin | pubis |
| adductor longus insertion | linea aspera |
| adductor longus action | adduction |
| adductor longus innervation | obturator nerve |
| adductor brevis origin | pubis |
| adductor brevis insertion | linea aspera |
| adductor brevis action | adduction |
| adductor brevis innervation | obturator nerve |
| adductor magnus origin | pubis, ischium |
| adductor magnus insertion | femur |
| adductor magnus action | adduction |
| adductor magnus innervation | tibial nerve |
| all the medial thigh muscles are innervation by the obturator nerve except | adductor magnus (innervated by tibial nerve) |
| gracilis origin | pubis |
| gracilis insertion | medial tibia |
| gracilis action | adduction, knee flexion |
| gracilis innervation | obturator nerve |
| obturator externus origin | obturator membrane |
| obturator externus insertion | femur |
| obturator externus action | lateral rotation |
| obturator externus innervation | obturator nerve |
| muscles of the posterior thigh (3) | biceps femoris, semitendinosus, semimembranosus |
| biceps femoris origin | Ischial tuberosity |
| biceps femoris insertion | fibula |
| biceps femoris action | knee flexion |
| biceps femoris innervation | sciatic nerve |
| semitendinosus origin | Ischial tuberosity |
| semitendinosus insertion | medial tibia |
| semitendinosus action | knee flexion |
| semitendinosus innervation | sciatic nerve |
| semimembranosus origin | Ischial tuberosity |
| all posterior thigh muscles originate from | Ischial tuberosity |
| all posterior thigh muscles action | knee flexion |
| semimembranosus insertion | tibia |
| semimembranosus action | knee flexion |
| semimembranosus innervation | sciatic nerve |
| muscles in the anterior leg (4) | tibialis anterior, extensor hallucis longus, extensor digitorum longus, fibularis tertius |
| tibialis anterior origin | tibia |
| tibialis anterior insertion | medial foot |
| tibialis anterior action | dorsiflexion, inversion |
| tibialis anterior innervation | deep fibular nerve |
| extensor hallucis longus origin | fibula |
| extensor hallucis longus insertion | big toe |
| extensor hallucis longus action | toe extension (of big toe) |
| extensor hallucis longus innervation | deep fibular nerve |
| Extensor digitorum longus action | tibia/ fibula |
| Extensor digitorum longus insertion | toes |
| Extensor digitorum longus action | toe extension (digits) |
| Extensor digitorum longus innervation | deep fibular nerve |
| Fibularis tertius origin | fibula |
| Fibularis tertius insertion | foot |
| Fibularis tertius action | dorsiflexion |
| Fibularis tertius innervation | deep fibular nerve |
| muscles in the lateral leg (2) | fibularis longus and fibularis brevis |
| fibularis longus origin | fibula |
| fibularis longus insertion | base of 1st metatarsal |
| fibularis longus action | eversion |
| fibularis longus innervation | superficial fibular nerve |
| fibular brevis origin | fibula |
| fibularis brevis insertion | 5th metatarsal |
| fibularis brevis action | eversion |
| fibularis brevis innervation | superficial fibular nerve |
| superficial muscles in the posterior leg (3) | gastrocnemius, soleus, and plantaris |
| gastrocnemius action | plantarflexion, knee flexion |
| soleus action | plantarflexion |
| plantaris action | weak plantarflexion |
| deep muscles in the posterior leg (3) | tibialis posterior, flexor digitorum longus, flexor hallucis longus |
| which nerve supplies both superficial and deep muscles in the posterior leg | tibial nerve |
| tibialis posterior action | inversion, plantarflexion |
| flexor digitorum longus action | toe flexion (digits) |
| flexor hallucis longus action | toe flexion (big toe) |
| innervation of foot muscles | medial plantar nerve |
| medial plantar nerve innervates what (LOAF) | lumbricals, opponens, hallucis, abductor hallucis, flexor hallcis brevis |