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MSK > Muscles Of The Lower Limb > Flashcards

Muscles Of The Lower Limb Flashcards

1
Q

What are the main actions of the anterior thigh muscles?

A

Hip flexion, knee extension

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2
Q

What nerve innervates the main anterior thigh muscles?

A

Femoral nerve

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3
Q

Sartorius

A

A:flexion of hip, abduction of thigh, flexion of knee
I:femoral nerve

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4
Q

Name the muscles of the medial thigh

A 
Adductor Magnus
Adductor longus
Adductor brevis
Gracilis
Obturator externus
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5
Q

What is the main action of the medial thigh muscles?

A

Adduction

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6
Q

What nerve innervates the medial thigh muscles?

A

Obturator nerve

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7
Q

Name the muscles of the gluteal region

A 
Gluteus maximus 
Gluteus medius
Gluteus minimus
Obturator internus
Piriformis
Superior gemelli
Inferior gemelli
Quadratus femoris
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8
Q

Gluteus maximus

A

I: inferior gluteal nerve
A: extensor of the femur, assists lateral rotation

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9
Q

Gluteus medius and minimus

A

I: superior gluteal nerve
A: abduct femur, prevent pelvic drop

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10
Q

Obturator internus

A

A: lateral rotation
I: nerve to obturator internus

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11
Q

Piriformis

A

A: lateral rotation and abduction
I: nerve to piriformis from sacral plexus
Divides the greater static foremen into superior and inferior

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12
Q

Superior gemelli

A

A: lateral rotation
I: nerve to obturator internus

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13
Q

Inferior gemelli

A

A: lateral rotation
I: nerve to quadratus femoris

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14
Q

Quadratus femoris

A

A: lateral rotation
I: nerve to quadratus femoris

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15
Q

Name the posterior thigh muscles

A

Semitendinosus
Semimembranosus
Biceps femoris (long and short head)

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16
Q

Semitendinosus

A

I: tibial nerve
A: extends thigh, flexes leg

17
Q

Semimembranosus

A

I: tibial nerve
A: flexes leg, extends thigh

18
Q

Long head of biceps femoris

A

I: tibial nerve
A: flexes leg, extends thigh

19
Q

Short head of biceps femoris

A

I: common fibular nerve
A: flexes leg, medial rotation

20
Q

Name the anterior muscles of the thigh

A 
Vastus lateralis
Vastus intermedius
Vastus medialis 
Rectus femoris 
Sartorius
Tensor of fascia lata 
Iliacus
Psoas major
Psoas minor
Iliopsoas 
Pectineus
21
Q

Name the muscles of the anterior compartment of the leg

A

Tibialis anterior
Extensor digitorum longus
Extensor hallicus longus
Fibularis tertius

22
Q

What nerve supplies the anterior muscles of the leg?

A

Deep Fibular nerve

23
Q

What are the main actions of the anterior muscles of the leg?

A

Dorsiflexion of the foot
Extension of the digits
(Eversion/inversion of foot)

24
Q

Name the lateral muscles of the leg

A

Fibularis longus

Fibularis brevis

25
Q

What are the main actions of the lateral muscles of the leg?

A

Foot eversion

Some plantarflexion

26
Q

What nerve innervates the lateral muscles of the leg?

A

Superficial Fibular nerve

27
Q

Name the superficial muscles of the posterior leg

A

Gastrocnemius
Plantaris
Soleus

28
Q

What innervates the posterior leg muscles?

A

The tibial nerve

29
Q

What are the main actions of the superficial posterior leg muscles?

A

Plantarflexion of the foot

Flexion of the knee

30
Q

Name the deep muscles of the posterior leg

A

Popliteus
Flexor hallicus longus
Flexor digitorum longus
Tibialis posterior

31
Q

What are the actions of the deep posterior leg muscles?

A

Popliteus initiates flexion of the knee
Flexor hallucis/digitorum longus flex the digits
Tibialis posterior flexes and inverts the foots.

32
Q

What structures pass under the flexor retinaculum? (Medial to lateral)

A 
Tibialis posterior tendon 
Flexor digitorum longus tendon
Posterior tibial artery
Posterior tibial vein
Tibial nerve
Flexor hallucis longus tendon

TOM, DICK AND VERY NAUGHTY HARRY

MSK (8 decks)

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