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Lower Extremity Anatomy And Biomechanics > Actions of LE > Flashcards

Actions of LE Flashcards

1
Q

Muscles of Hip Flexion

A 
Psoas Major (NWB)
Iliacus (NWB)
Rectus Femoris (NWB)
Sartorius (NWB)
Pectineus (NWB)
Gracilis (NWB)
Adductor Longus (NWB)
Adductor Brevis (NWB)
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2
Q

Muscles of Hip Extension

A 
Adductor Magnus (NWB)
Semimembranosus (NWB)
Semitendinous (NWB)
Bicep Femoris- Long Head (NWB)
Gluteus Medius (NWB)
Gluteus Maximus (NWB)
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3
Q

Muscles of Lumbar Flexion

A

Psoas Major

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4
Q

Muscle of Anterior Pelvic Tilt

A

Iliacus

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5
Q

Muscles of Hip Lateral Rotation (ER)

A 
Sartorius (NWB)
Pectineus (NWB)
Bicep Femoris- Long head (helps in NWB)
Gluteus Medius- (NWB- posterior)
Gluteus Maximus (NWB)
Piriformis (NWB)
Superior Gemellus (NWB)
Obturator Internus (NWB)
Inferior Gemellus (NWB)
Obturator Externus (NWB)
Quadratus Femoris
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6
Q

Muscles of Hip Medial Rotation (IR)

A 
Gracilis (NWB)
Adductor Longus (NWB)
Adductor Brevis (NWB)
Semimembranosus 
Semitendinous
Gluteus Minimus (NWB)
Gluteus Medius (NWB- Anterior)
Tensor Fasciae Latae (NWB)
Popliteus
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7
Q

Muscles of Hip Abduction

A 
Sartorius (NWB-controls)
Pectineus (NWB-controls)
Gluteus Minimus (NWB)
Gluteus Medius (NWB)
Gluteus Maximus (NWB)
Tensor Fasciae Latae (NWB-from hip flex position)
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8
Q

Muscles that decelerate hip IR

A 
Psoas Major (WB)
Gastrocnemius (WB)
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9
Q

Muscles of Knee Extension

A

Rectus Femoris
Vastus Lateralis
Vastus Medialis
Vastus Intermedius

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10
Q

Muscles of Knee Flexion

A 
Sartorius
Semimembranosus
Semitendinous
Bicep Femoris- Long head
Bicep Femoris- Short head
Popliteus
Gastrocnemius (NWB)
Plantaris (weak)
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11
Q

Muscles of Eversion

A

Peroneus (fibularis) Tertius (NWB)
Peroneus (fibularis) Longus (NWB)
Peroneus (fibularis) Brevis (NWB)

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12
Q

Muscles of Hip Adduction

A 
Gracilis (NWB)
Adductor Longus (NWB)
Adductor Brevis (NWB) 
Adductor Magnus (NWB)
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13
Q

Muscles of Ankle Dorsiflexion

A

Tibialis Anterior (NWB)
Extensor Digitorum Longus (NWB)
Extensor Hallucis Longus (NWB)
Peroneus (fibularis) Tertius (NWB)

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14
Q

Muscles of Ankle Plantar Flexion

A 
Gastrocnemius (NWB & during push-off)
Plantaris (NWB-weak)
Soleus (NWB)
Tibialis Posterior (NWB- m. malleolus= pulley)
Flexor Digitorum Longus (NWB)
Flexor Hallucis Longus (NWB- weak)
Peroneus (fibularis) Longus (NWB- weak)
Peroneus (fibularis) Brevis (NWB-weak)
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15
Q

Muscles that flex the toes

A 
Flexor Digitorum Longus (NWB- 2nd-5th)
Flexor Hallucis Longus (NWB-1st toe)
Abductor Hallicus (helps with 1st toe)
Flexor Digitorum Brevis (PIP and 2-5th MTP)
Abductor Digiti Minimi (5th toe)
Quadratus Plantae (assist 2nd-5th)
Lumbricals (4)- (2nd-5th MTP Joints)
Flexor Hallucis Brevis (1st)
Adductor Hallucis (helps with 1st toe)
Flexor Digiti Minimi (MTP of 5th)
Dorsal Interossei (assist with 2nd-4th MTP)
Plantar Interossei (assist with 3rd-5th MTP)
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16
Q

Muscles that adduct toes

A 
Adductor Hallucis (1st)
Plantar Interossei (3rd-5th)
17
Q

Muscle that decelerates forward motion

A

Soleus (when foot on ground)

18
Q

Muscles that stabilize the base

A

Peroneus (fibularis) Longus (WB-1st ray)

Peroneus (fibularis) Brevis (WB- 5th ray)

19
Q

Muscles of Ankle Abduction

A

Peroneus (fibularis) Longus (NWB)

Peroneus (fibularis) Brevis (NWB)

20
Q

Muscle that modifies pull FDL

A

Quadratus Plantae

21
Q

Muscles of Pronation

A 
Gastrocnemius (decelerates)
Tibialis Posterior (WB- decelerates subtalar joint)
Tibialis Anterior (WB- helps control at forefoot)
22
Q

Muscles of Supination

A

Tibialis Posterior (WB-stabilizes MT joint)

23
Q

Muscles that abduct the toes

A 
Abductor Hallucis (1st)
Abductor Digiti Minimi (5th)
Dorsal Interossei (2nd-4th)
24
Q

Muscle that supports Longitudinal Arch

A

Flexor Digitorum Longus (NWB)

25
Q

Muscles That Extend the Toes

A

Extensor Digitorum Longus (NWB- 2nd-5th)
Extensor Hallucis Longus (NWB-1st)
Lumbricals (4)- (assists 2nd-5th IP)
Extensor Digitorum Brevis (2-4 MTP and assist IP)
Extensor Hallucis Brevis (MTP of 1st toe)

Lower Extremity Anatomy And Biomechanics (12 decks)

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