MSS Week 12 Flashcards

1
Q

Anterior compartment muscles

Tibialis anterior

Origin
Insertion
Innervation
Action

A

Anterior compartment muscles

Tibialis anterior

Origin: Lateral surface of the tibia
Insertion: Medial cuneiform
Innervation: Deep fibular nerve
Action: Dorsiflexion and Inversion of the foot

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2
Q

Posterior Compartment Muscles

Tibialis Posterior

Origin
Insertion
Innervation
Action

A

Posterior Compartment Muscles

Tibialis Posterior

Origin: Interosseous membrane between the tibia and fibula
Insertion: Plantar surfaces of the medial tarsal bones
Innervation: Tibial Nerve
Action: Plantarflexion and inversion of the foot

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3
Q

Lateral Compartment of Muscles

Fibularis Longus

Origin
Insertion
Innervation
Action

A

Lateral Compartment of Muscles

Fibularis Longus

Origin: Superior and lateral surface of the fibula
Insertion: base of metatarsal 1
Innervation: Superficial Fibular Nerve
Action: Eversion of the foot

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4
Q

Lateral Compartment of Muscles

Fibularis Brevis

Origin
Insertion
Innervation
Action

A

Lateral Compartment of Muscles

Fibularis Brevis

Origin: inferiolateral surface on the fibular shaft
Insertion: tubercle on metatarsal V
Innervation: Superficial Fibular Nerve
Action: Eversion of the foot

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5
Q

Extrinsic Toe Extensors

Extensor Digitorum Longus

Origin
Insertion
Innervation
Action

A

Extrinsic Toe Extensors

Extensor Digitorum Longus

Origin: Lateral condyle of the tibia
Insertion: tendon splitting into four
Innervation: Deep Fibular Nerve
Action: Toe Extension

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6
Q

Extrinsic Toe Extensors

Extensor Hallucis Longus

Origin
Insertion
Innervation
Action

A

Extrinsic Toe Extensors

Extensor Hallucis Longus

Origin: medial surface of the fibular shaft
Insertion: base of the distal phalanx of the great toe
Innervation: Deep Fibular Nerve
Action: Toe Extension

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7
Q

Extrinsic Toe Flexors

Flexor Digitorum Longus

Origin
Insertion
Innervation
Action

A

Extrinsic Toe Flexors

Flexor Digitorum Longus

Origin: Medial surface of the tibia
Insertion: Plantar surfaces of the lateral four digits
Innervation: Tibial Nerve
Action: Toe Flexion

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8
Q

Extrinsic Toe Flexors

Flexor Hallucis Longus

Origin
Insertion
Innervation
Action

A

Extrinsic Toe Flexors

Flexor Hallucis Longus

Origin: Posterior surface of the fibula
Insertion: Plantar surface of the phalanx of the great toe
Innervation: Tibial Nerve
Action: Toe Flexion

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