Lower Limb Muscles: Functions, BS, and Innervations

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Can you name the Lower Limb Muscles: Functions, BS, and Innervations?

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Fxn, BS, & InnervationMuscle
Action: Flexes at knee, extends thigh N: Tibial branch of sciatic (L5-S2) B: Popliteal Note: inserts on the medial tibial condyle
Action: Extension at knee joint N: Femoral nerve (L2-L4) B: Femoral artery (lateral circumflex femoral, deep femoral) Note: Originates on the intertrochanteric line and medial lip
Action: weak synergist of gastrocnemius N: tibial nerve (L5-S1) B: politeal artery
Action: Extension of thigh, assists in lateral rotation N: Inferior gluteal nerve (L5-S2) B: Superior and inferior gluteal arteries
Action: flexion of lateral four toes, plantarflexion of ankle N: tibial nerve (L5-S1) B: posterior tibial artery
Action: unlocking of knee joint, weak flexion of knee joint N: tibial nerve (L4-S1) B: politeal artery
Action: plantarflexion of ankle, assists in flexion at knee N: tibial nerve (S1-S2) B: popliteal artery
Action: Lateral rotation of thigh, abducts flexed thigh N: Nerve to obturator internus (L5-S2) B: internal pudendal, superior gluteal
Action: Flexes at knee, extends thigh N: Tibial nerve (L5-S2) B: Popliteal artery Note: inserts on the medial surface of superior tibia
Action: Lateral rotation of thigh, abducts flexed thigh N: Ventral rami of S1, S2 B: Superior and inferior gluteal, internal pudendal
Action: eversion of foot, weak plantarflexion of ankle N: superficial fibular (peroneal) nerve (L5-S2) B: anterior tibial artery, fibular artery
Action: dorsiflexion of ankle, assists in eversion N: deep fibular (peroneal) nerve (L5, S1) B: anterior tibial artery
Action: Lateral rotation of thigh N: Nerve to quadratus femoris (L4-S1) B: Medial circumflex femoral
Action: Flexion, lateral rotation, and abduction of the thigh N: Superior gluteal nerve (L4-L5) B: Superior gluteal arteries, lateral circumflex femoral
Action: Abduction of thigh, medial rotation of thigh N: Superior gluteal nerve (L4-S1) B: Superior gluteal artery Note: the most deep of the superficial gluteal muscles
Action: Extension at knee joint, flexion at hip joint N: Femoral nerve (L2-L4) B: Femoral artery (lateral circumflex femoral, deep femoral)
Action: Adducts and flexes thigh N: Obturator nerve (L2-L4) B: Femoral, popliteal, obturator
Action: plantarflexion of ankle N: tibial nerve (S1-S2) B: posterior tibial artery, fibular artery, popliteal artery
Action: Extension at knee joint N: Femoral nerve (L2-L4) B: Femoral artery (lateral circumflex femoral, deep femoral) Note: Originates on the body of the femur
Fxn, BS, & InnervationMuscle
Action: Stabilization of the hip, flexion of the hip N: Anterior rami (L1-L3) B: Iliolumbar artery (lumbar branches)
Action: Extension at knee joint N: Femoral nerve (L2-L4) B: Femoral artery (lateral circumflex femoral, deep femoral) Note: Originates on the greater trochanter and lateral lip of
Action: Lateral rotation of thigh N: nerve to obturator internus (L5-S2) B: inferior gluteal artery
Action: extends 2nd through 5th digit, dorsiflexion of ankle N: deep fibular (peroneal) nerve (L5, S1) B: anterior tibial artery
Action: Adduction of thigh N: Obturator (L2-L4) B: Femoral (medial circumflex femoral), obturator
Action: flexion of the 1st digit, weak plantarflexion of ankle N: tibial nerve (L5-S2) B: fibular artery
Action: flexion at the leg N: Common fibular BS: Popliteal Artery
Action: extension of 1st digit, dorsiflexion of ankle N: deep fibular (peroneal) nerve (L5, S1) B: anterior tibial artery
Action: eversion of foot, weak plantarflexion of ankle N: superficial fibular (peroneal) nerve (L5-S2) B: fibular artery
Action: Abduction of thigh, medial rotation of thigh N: Superior gluteal nerve (L4-S1) B: Superior gluteal artery
Action: Adduction and flexion of thigh N: Femoral nerve (L2-L3), occasionally obturator nerve B: Femoral artery (medial circumflex)
Action: Flexion, lateral rotation, and abduction of the thigh N: Femoral nerve (L2-L3) B: Femoral artery
Action: plantarflexion of ankle, inversion of foot N: tibial nerve (L4-L5) B: fibular artery
Action: Lateral rotation of thigh N: Nerve to quadratus femoris (L4-S1) B: inferior gluteal artery
Action: Flexes at knee, extends thigh N: Tibial division of sciatic B: Popliteal artery, deep artery of the thi
Action: Adduction and flexion of thigh, extension of thigh N: Obturator nerve (L2-L4), tibial nerve (L4) B: Femoral, popliteal, obturator
Action: dorsiflexion of ankle, inversion of foot N: deep fibular (L4, L5) B: anterior tibial artery
Action: Adduction of thigh, medial rotation and flexion of leg N: Obturator (L2-L3) B: Femoral (medial circumflex femoral), obturator

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