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Foot - INTRO > 3 Intrinsic Muscles - THIRD Layer > Flashcards

3 Intrinsic Muscles - THIRD Layer Flashcards

1
Q

Flexor Hallucis Brevis

Origin
Insertion

Action

Nerve Supply

A

Origin: Cuboid, lateral cuneiform, tibialis posterior insertion

Insertion: Medial tendon into medial side of base of proximal phalanx of the hallux; lateral tendon into lateral side of base of proximal phalanx of the hallux

Action: Flexes metatarsophalangeal joint of the hallux; supports medial longitudinal arch

Nerve Supply: Medial plantar nerve

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2
Q

Adductor Hallucis

Origin
Insertion

Action

Nerve Supply

A

Origin:
Oblique head = bases of 2nd, 3rd and 4th metatarsal bones
Transverse head = plantar ligaments

Insertion: Lateral side base proximal phalanx of the hallux

Action: Flexes metatarsophalangeal joint of the hallux; holds together metatarsal bones

Nerve Supply: Deep branch lateral plantar nerve

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3
Q

Flexor Digiti Mimimi Brevis

Origin
Insertion

Action

Nerve Supply

A

Origin: Base of 5th metatarsal bone

Insertion: Base of proximal phalanx of the 5th digit, Lateral side

Action: Flexes metatarsophalangeal joint of little toe

Nerve Supply: Lateral plantar nerve

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4
Q

NAME THE 3 INTRINSIC MUSCLES OF THE THIRD LAYER

A

Adductor Hallucis
Flexor Hallucis Brevis
Flexor Digiti Mimimi Brevis

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5
Q

Origin: Oblique head bases of 2nd, 3rd and 4th metatarsal bones; transverse head plantar ligaments

A

Adductor Hallucis

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6
Q

Insertion: Lateral side base proximal phalanx of the hallux

A

Adductor Hallucis

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7
Q

Action: Flexes metatarsophalangeal joint of the hallux; holds together metatarsal bones

A

Adductor Hallucis

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8
Q

Origin: Cuboid, lateral cuneiform, tibialis posterior insertion

A

Flexor Hallucis Brevis

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9
Q

Insertion: Medial tendon into medial side of base of proximal phalanx of the hallux; lateral tendon into lateral side of base of proximal phalanx of the hallux

A

Flexor Hallucis Brevis

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10
Q

Action: Flexes metatarsophalangeal joint of the hallux; supports medial longitudinal arch

A

Flexor Hallucis Brevis

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11
Q

Origin: Base of 5th metatarsal bone

A

Flexor Digiti Mimimi Brevis

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12
Q

Insertion: Lateral side base of proximal phalanx of the 5th digit

A

Flexor Digiti Mimimi Brevis

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13
Q

Action: Flexes metatarsophalangeal joint of little toe

A

Flexor Digiti Mimimi Brevis

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Foot - INTRO (18 decks)

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