LE
What cord segment, myotome and nerves innervate Psoas major, sartorius and quadriceps femoris? (answer separately for each muscle)
What actions should be tested for these muscles?
Cord: Psoas- L1-2, Sartorius- L2-3, Quadriceps femoris- L2-4
Myotome: Psoas and sartorius- L2, Quadriceps femoris- L3
Nerves: Psoa- anterior rami, sartorius and quadriceps fem- femoral
Actions: Psoas- hip flexion, Sartorius- hip flexion, ER, abduction, Quadriceps femoris- knee extension
What cord segment, myotome and nerves innervate gluteus maximus?
What actions should be tested for this muscle?
Cord: L5-S2
Nerve: inferior gluteal
Action: hip extension, hip ER
What cord segment and nerves innervate semimembranosus?
What actions should be tested for these muscles?
Cord: L5-S2
Nerve: Tibial
Action: Leg medial rotation
What cord segment and nerves innervate popliteus?
What actions should be tested for this muscle?
Cord: L4-S1
Nerve: Tibial
Action: leg medial rotation
What cord segment and nerves innervate dorsal/plantar interossei?
What actions should be tested for these muscles?
Cord: S2-3
Nerve: lateral plantar
Action: toe adduction/abduction
What cord segment, myotome and nerves innervate Adductor magnus, longus, brevis and pectineus?
What actions should be tested for these muscles?
Cord: L2-3
Nerve: Obturator
Action: hip adduction
What cord segment and nerves innervate obturator internus?
What actions should be tested for this muscle?
Cord: L5-S1
Nerve: nerve to obturator internus
Action: hip ER
What cord segment, myotome and nerves innervate Tibialis anterior?
What actions should be tested for this muscle?
Cord: L4-5
Myotome: L4
Nerve: deep fibular
Action: DF
What cord segment and nerves innervate tibialis posterior?
What actions should be tested for this muscle?
Cord: L4-S1
Nerve: tibial
Action: foot inversion
What cord segment and nerves innervate perineals and sphincters?
What actions should be tested for these muscles?
Cord: S3-4
Nerve: sacral plexus
Action: pelvic floor control
What cord segment, myotome and nerves innervate gluteus medius and minimus?
What actions should be tested for these muscles?
Cord: L4-S1
Nerve: superior gluteal
Action: Hip abduction, flexion, medial rotation
What cord segment and nerves innervate Gemeli, quadratus femoris?
What actions should be tested for these muscles?
Cord: L5-S1
Nerve: sacral plexus
Action: hip ER
What cord segment and nerves innervate extensor digitorum longus?
What actions should be tested for this muscle?
Cord: L4-5
Nerve: deep fibular
Action: 2-5 digit MTP extension
What cord segment and nerves innervate gastrocnemius/soleus?
What actions should be tested for these muscles?
Cord: L4-S1
Nerve: tibial
Action: Ankle PF
What cord segment and nerves innervate Tensor fascia lata?
What actions should be tested for this muscle?
Cord: L4-S1
Nerve: superior gluteal
Action: hip flexion, abduction, IR
What cord segment and nerves innervate biceps femoris?
What actions should be tested for this muscle?
Cord: L5-S2
Nerve: tibial, common fibular
Action: knee flexion, hip extension, leg lateral rotation
What cord segment, myotome and nerves innervate fibularis longus/brevis?
What actions should be tested for these muscles?
Cord: L5-S2
Myotome: S1
Nerve: superficial fibular
Action: foot eversion
What cord segment and nerves innervate flexor digitorum longus and flexor hallucis longus?
What actions should be tested for these muscles?
Cord: L5-S2
Nerve: Tibial
Actions: 2-5 DIP flexion and great to IP flexion
What cord segment and nerves innervate Piriformis?
What actions should be tested for this muscle?
Cord: L5-S1
Nerve: nerve to piriformis
Action: hip ER
What cord segment and nerves innervate semitendinosus?
What actions should be tested for this muscle?
Cord: L5-S2
Nerve: tibial
Action: hip extension, knee flexion
What cord segment, myotome and nerves innervate extensor hallucis longus?
What actions should be tested for this muscle?
Cord: L4-5
Myotome: L5
Nerve: deep fibular
Action: great toe MTP extension
What cord segment and nerves innervate flexor digitorum brevis and flexor hallucis brevis?
What actions should be tested for these muscles?
Cord: S2-3
Nerve: medial plantar
Action: 2nd-5th PIP flexion, great toe MTP flexion