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Bio 223 Musculoskeletal > Lower Limb and Leg Musculature > Flashcards

Lower Limb and Leg Musculature Flashcards

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Biology 101 flashcards
1
Q

Adductors of the thigh, lateral rotators of the thigh, (mostly obturator nerve)

A

Medial thigh

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2
Q

Flexors of the leg, extensors of thigh, (sciatic nerve)

A

Posterior thigh

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3
Q

Extensors of thigh, abductors of thigh, rotators of thigh, (superior and inferior gluteal nerve)

A

Gluteals

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4
Q

Quadriceps

A

Extend leg at knee joint
(Femoral nerve)
(L2-L4)

Anterior thigh muscles

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5
Q

Sartorius

A

Flexes, abducts, laterally rotates thigh;flexes leg at knee
(Femoral nerve)
(L2-L4)

Anterior thigh muscles

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6
Q

Illiopsoas

A

Flex thigh at hip joint
(Femoral nerve)
(L2-L4)

Anterior thigh muscles

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7
Q

Pectineus

A

Flexes thigh and adducts thigh
(Femoral nerve)
(L2-L4)

Anterior thigh muscles

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8
Q

Adductor longus

A

Adducts thigh
(Obturator nerve)
(L2-L4)

Medial thigh muscles

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9
Q

Adductor brevis

A

Adducts thigh
(Obturator nerve)
(L2-L4)

Medial thigh muscles

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10
Q

Adductor magnus

A

Adducts and flexes thigh
(Obturator nerve)
(L2-L4)

Medial thigh muscles

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11
Q

Gracilis

A

Adducts thigh, flexes leg, rotates medially
(Obturator nerve)
(L2-L4)

Medial thigh muscles

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12
Q

Obturator externus

A

Laterally rotates thigh
(Obturator nerve)
(L2-L4)

Medial thigh muscles

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13
Q

Biceps femoris

A

Knee Flexors and lateral rotation at hip
(Sciatic nerve)
(L4-S3)

Posterior thigh muscles

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14
Q

Semitendinosus

A

Knee Flexors and medial rotation at hip
(Sciatic nerve)
(L4-S3)

Posterior thigh muscles

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15
Q

Semimembranosus

A

Knee Flexors and medial rotation at hip
(Sciatic nerve)
(L4-S3)

Posterior thigh muscles

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16
Q

Gluteus maximus

A

Extend thigh
(Inferior gluteal nerve)

Gluteal muscles

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17
Q

Gluteus medius

A

Abduct and medially rotates thigh
(Superior gluteal nerve)

Gluteal muscles

18
Q

Tensor fascia latae

A

Flexes thigh
(Superior gluteal nerve)

Gluteal muscles

19
Q

Piriformis

A

Lateral rotator and abduct flexed thigh
(Branches of L5-S2)

Lateral Rotator Group

20
Q

Obturator internus

A

Lateral rotator and abduct flexed thigh
(Branches of L5-S2)

Lateral Rotator Group

21
Q

Inferior gemellus

A

Lateral rotator and abduct flexed thigh
(Branches of L5-S2)

Lateral Rotator Group

22
Q

Superior gemellus

A

Lateral rotator and abduct flexed thigh
(Branches of L5-S2)

Lateral Rotator Group

23
Q

Quadratus femoris

A

Lateral rotator and abduct flexed thigh
(Branches of L5-S2)

Lateral Rotator Group

24
Q

Anterior compartment of distal lower limb

A

Dorsiflexors of foot and extensors of toes

Sciatic nerve, deep fibular branch

25
Q

Lateral compartment of distal lower limb

A

Evertors of foot

Sciatic nerve, superficial fibular branch

26
Q

Posterior compartment of distal lower limb

A

Plantorflexors of the foot and toes

Sciatic nerve, tibial branch

27
Q

Tibialis anterior

A

Dorsiflexor, also inverts foot
(Deep fibular nerve)
(L4-S1)

Anterior compartment

28
Q

Extensor hallucis longus

A

Dorsiflexor, and extends great toe
(Deep fibular nerve)
(L4-S1)

Anterior compartment

29
Q

Extensor digitorum longus

A

Dorsiflexor, and extends toes
(Deep fibular nerve)
(L4-S1)

Anterior compartment

30
Q

Fibularis longus

A

Evertors
(Superficial fibular nerve)
(L5-S2)

Lateral compartment

31
Q

Fibularis brevis

A

Evertors
(Superficial fibular nerve)
(L5-S2)

Lateral compartment

32
Q

Gastrocnemius, medial head

A

Plantarflexors
(Tibial nerve)
(L4-S2)

Posterior compartment

33
Q

Gastrocnemius, lateral head

A

Plantarflexors
(Tibial nerve)
(L4-S2)

Posterior compartment

34
Q

Soleus

A

Plantarflexors
(Tibial nerve)
(L4-S2)

Posterior compartment

35
Q

Plantaris

A

Plantarflexors
(Tibial nerve)
(L4-S2)

Posterior compartment

36
Q

Popliteus

A

Plantarflexors, and ‘unlocks’ knee
(Tibial nerve)
(L4-S2)

Posterior compartment

37
Q

Tibialis posterior

A

Digital flexor
(Tibial nerve)
(L4-S2)

(Deep) Ankle extensors
(Posterior compartment)

38
Q

Flexor hallucis longus

A

Digital flexor
(Tibial nerve)
(L4-S2)

(Posterior compartment)

39
Q

Flexor digitorum longus

A

Digital flexor
(Tibial nerve)
(L4-S2)

(Posterior compartment)

40
Q

Flexors of the thigh, extensors of the knee, (mostly femoral nerve)

A

Anterior thigh

41
Q

Femoral triangle

A

Contains femoral nerve, artery, vein, and lymphatics

Bio 223 Musculoskeletal (3 decks)

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