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Anatomy-Limbs > Lower Limb Muscles > Flashcards

Lower Limb Muscles Flashcards

1
Q

Psoas major

A

Anterior rami L1-L3

Lumbar branches of iliolumbar artery

Flexes the thigh at the hip joint

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2
Q

Iliacus

A

Femoral nerve L2-L3

Lumbar branches of iliolumbar artery

Flexes the thigh at the hip joint

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3
Q

Vastus Medialis

A

Femoral nerve L2-L4

Femoral artery, deep femoral artery

Extends the leg at the knee joint

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4
Q

Vastus Intermedius

A

Femoral nerve L2-L4

Lateral circumflex femoral artery, deep femoral artery

Extends the leg at the knee joint

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5
Q

Vastus lateralis

A

Femoral nerve L2-L4

Lateral circumflex femoral artery, deep femoral artery

Extends the leg at the knee joint

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6
Q

Rectus Femoris

A

Femoral nerve L2-L4

Lateral circumflex femoral artery, deep femoral artery

Flexes the thigh at the hip joint and extends the leg at the knee joint

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7
Q

Sartorious

A

Femoral nerve L2-L3

Femoral artery

Flexes the thigh at the hip joint and flexes the leg at the knee joint

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8
Q

Gracilis

A

Obturator Nerve L2-L3

Deep femoral artery, medial circumflex femoral artery

Adducts thigh at hip joint and flexes leg at knee joint

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9
Q

Pectineus

A

Femoral Nerve L2-L3

Medial circumflex femoral artery, obturator artery

Adducts and flexes thigh at hip joint

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10
Q

Adductor Longus

A

Obturator Nerve (anterior division) L2-L4

Medial circumflex femoral artery, obturator artery

Adduct and medially rotates thigh at hip joint

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11
Q

Adductor Brevis

A

Obturator Nerve L2-L3

Medial circumflex femoral artery, obturator artery

Adducts thigh at hip point

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12
Q

Adductor Magnus - adductor part

A

Obturator Nerve L2-L4

Deep femoral artery, popliteal artery, obturator

Adducts and medially rotates thigh at hip joint

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13
Q

Adductor Magnus - hamstring part

A

Sciatic Nerve (tibial division) L2-L4

Deep femoral artery, popliteal artery, obturator

Extends thigh

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14
Q

Obturator Externus

A

Obturator Nerve (posterior division) L3-L4

Medial circumflex femoral artery, obturator artery

Laterally rotates thigh at hip joint

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15
Q

Piriformis

A

Branch from L5, S1, S2 (Grays’s says “Nerve to the Piriformis” from S1 to S2)

Superior and inferior gluteal arteries, internal pudendal artery

Laterally rotates extended femur at hip joint; abducts flexed femur at hip joint

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16
Q

Obturator Internus

A

Nerve to obturator internus (L5, S1)

Internal pudendal and superior gluteal arteries

Laterally rotates extended femur at hip joint; abducts flexed femur at hip joint

17
Q

Gemellus Superior

A

Nerve to obturator internus (L5, S1)

Inferior gluteal artery

Laterally rotates extended femur at hip joint; abducts flexed femur at hip joint

18
Q

Gemellus Inferior

A

Nerve to quadratis internus (L5, S1)

Inferior gluteal artery

Laterally rotates extended femur at hip joint; abducts flexed femur at hip joint

19
Q

Quadratus Femoris

A

Nerve to quadratis internus (L5, S1)

Medial circumflex femoral artery

Laterally rotates femur at hip joint

20
Q

Gluteus Minimus

A

Superior Gluteal Nerve (L4, L5, S1)

Deep branch of superior gluteal artery

Abducts femur at hip joint; holds pelvis secure over stance leg and prevents pelvic drop on the opposite swing side during walking; medially rotates thigh

21
Q

Gluteus Medius

A

Superior Gluteal Nerve (L4, L5, S1)

Deep branch of superior gluteal artery

Abducts femur at hip joint; holds pelvis secure over stance leg and prevents pelvic drop on the opposite swing side during walking; medially rotates thigh

22
Q

Gluteus Maximus

A

Inferior Gluteal Nerve (L5, S1, S2)

Superior and inferior gluteal arteries, first perforating branch of deep femoral artery

Powerful extensor of flexed femur at hip joint; lateral stabilizer of hip joint and knee joint; laterally rotates and abducts thigh

23
Q

Tensor Fasciae Latae

A

Superior Gluteal Nerve (L4, L5, S1)

Superior gluteal arteries, lateral circumflex femoral artery

Stabilizes the knee in extension

24
Q

Biceps Femoris

A

Sciatic Nerve (Tibial Nerve)

Perforating branch of deep artery of thigh (Femoral Branch), superior muscular branches of popliteal artery

Flexes leg at knee joint; extends and laterally rotates thigh at hip joint and laterally rotates leg at knee joint

25
Q

Semitendinosus

A

Sciatic Nerve (Tibial Nerve)

Perforating branch of deep artery of thigh (Femoral Branch), superior muscular branches of popliteal artery

Flexes leg at knee joint and extends thigh at hip joint; medially rotates thigh at hip joint and leg at knee joint

26
Q

Semimembranosus

A

Sciatic Nerve (Tibial Nerve)

Perforating branch of deep artery of thigh (Femoral Branch), superior muscular branches of popliteal artery

Flexes leg at knee joint and extends thigh at hip joint; medially rotates thigh at hip joint and leg at knee joint

27
Q

Gastrocnemius

A

Tibial Nerve

Popliteal artery (Posterior Tibial)

Plantarflexes foot and flexes knee

28
Q

Plantaris

A

Tibial Nerve

Popliteal artery

Plantarflexes foot and flexes knee

29
Q

Soleus

A

Tibial Nerve

Popliteal artery (Posterior Tibial)

Plantarflexes the foot

30
Q

Popliteus

A

Tibial Nerve

Popliteal artery

Stabilizes knee joint (resists lateral rotation of tibia on femur)

31
Q

Flexor Hallucis Longus

A

Tibial Nerve

Fibular artery

Flexes Great Toe

32
Q

Flexor Digitorum Longus

A

Tibial Nerve

Posterior tibial artery

Flexes Lateral Four Toes

33
Q

Tibialis Posterior

A

Tibial Nerve

Fibular artery

Inversion and plantarflexion of foot; support of medial arch of foot during walking

34
Q

Fibularis Longus

A

Superficial fibular nerve

Fibular artery

Eversion and plantarflexion of foot; supports arches of foot

35
Q

Fibularis Brevis

A

Superficial fibular nerve

Fibular artery

Eversion foot

36
Q

Tibialis Anterior

A

Deep Fibular Nerve

Anterior tibial artery

Dorsiflexion of foot at ankle joint; inversion of foot; dynamic support of medial arch of foot

37
Q

Extensor Hallucis Longus

A

Deep Fibular Nerve

Anterior tibial artery

Extension of great toe and dorsiflexion of foot

38
Q

Extensor Digitorum Longus

A

Deep Fibular Nerve

Anterior tibial artery

Extension of lateral four toes and dorsiflexion of foot

39
Q

Fibularis Tertius

A

Deep Fibular Nerve

Anterior tibial artery

Dorsiflexion and eversion of foot

Anatomy-Limbs (4 decks)

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