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Anatomy of Lower Limb and Spine > Plantar aspect of foot - LAYER 2 > Flashcards

Plantar aspect of foot - LAYER 2 Flashcards

1
Q

What are the contents of the 2nd layer of the plantar aspect of the foot?

A

Muscles :
Lumbricals (4X)
Quadratus Plantae

Tendons:
Flexor Digitorum Longus
Flexor Hallucis Longus

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2
Q

What is the origin of the Lumbricals?

A

1st Lumbrical : The medial side of the tendon of Flexor Digitorum Longus associated with digit 2.

Lumbricals 2, 3, 4 from the adjacent sides of the tendons.

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3
Q

What is the insertion of the Lumbricals?

A

Medial free margin of the Extensor Hoods of toes 2 to 5.

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4
Q

What is the innervation of the Liumbricals?

A

The 1st Lumbrical, (which is assocuiated with toe 2 = MEDIAL PLANTAR NERVE

Lumbricals 2, 3, 4 = LATERAL PLANTAR NERVE

(S1, S2)

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5
Q

What is the action of the Lumbricals?

A

FLEXION of metatarsophalangeal joint.

EXTENSION of interphalangeal joints.

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6
Q

What is the origin of Quadratus Plantae?

A

Medial Surface of the CALCANEUS.

Lateral Process of the CALCANEAL Tuberosity.

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7
Q

What is the insertion of Quadratus Plantae?

A

Lateral side of tendon of FLEXOR DIGITORUM LONGUS (in proximal sole of foot)

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8
Q

What is the innervation of Quadratus Plantae?

A

Lateral Plantar Nerve

S1, S2, S3

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9
Q

What is the function of Quadratus Plantae?

A

Assists Flexor Digitorum Longus in FLEXION of toes 2 to 5.

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10
Q

What is the origin of Flexor Digitorum Longus?

A

Medial surface of TIBIA

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11
Q

What is the insertion of Flexor Digitorum Longus?

A

Plantar surface of base of DISTAL phalanx of toes 2 to 5.

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12
Q

What is the innervation of Flexor Digitorum Longus?

A

Tibial Nerve

S2, S3

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13
Q

What is the action of Flexor Digitorum Longus?

A

Flexes lateral 4 toes

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14
Q

What is the origin of Flexor Hallucis Longus?

A

Posterior Surface of Fibula

and adjacent interosseous membrane

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15
Q

What is the insertion of Flexor Hallucis Longus?

A

Great Toe.
Plantar surface.
Base of DISTAL phalanx.

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16
Q

What is the innervation of Flexor Hallucis Longus?

A

Tibial Nerve

S2, S3

17
Q

What is the action of the Flexor hallucis Longus?

A

FLEXES great toe

Anatomy of Lower Limb and Spine (15 decks)

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