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MSKI Midterm > Foot > Flashcards

Foot Flashcards

1
Q

Lateral Ray

A

Calcaneus

Cuboid

Phalanges 4-5

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2
Q

Medial Ray

A

Talus

Cunieforms

Phalanges 1-3

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3
Q

Deep fascia of the Foot

A

Dorsum of the foot - continuous with etensor retinaculum

Sole of foot - called plantar fascia, central part thickens to form plantar aponeurosis

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4
Q

Plantar aponeurosis

A

consitis of longitudinally arranged band of dense CT

arises from calcaneus posteriorly

covers entrire length of sole

divides into 5 bands (conclose digital tendons)

helps support the longitudinal foot arches

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5
Q

Clinical Anatomy: Plantar Fasciitis and Heel Spur Syndrome

A

Plantar aponeurosis inflammation at calcaneus (pain most sever after sitting and getting out of bed)

Causes - runing, high-impact exercise, worn out shoes, overweight

Plantar fasciitis may lead to

bony process on calcaneus

especially from medial calcaneal tubercle

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6
Q

Extensor Hallucis Brevis

A

dorsum of foot

innervation - deep fibular n.

forms a fleshy mass on lateral part of dorsum of foot

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7
Q

Extensor Digitorum Brevis

A

dorsum of foot

innervation - deep fibular n.

forms a fleshy mass on lateral part of dorsum of foot

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8
Q

Abductor Hallucis

A

found in first layer

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9
Q

Flextor hallucis longus and Flexor Digitorum longus

A

found in second layer , not consicder second layer plantar mm

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10
Q

Foot MM

A

Arranged in four layers

Roles

help maintain foot arches

stand on uneven ground

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11
Q

Clinical Notes: Hallux valgus, Bunion, and Corns

A

hallux valgus - foot deformity characterized by lateral deviation of great toe

bunion - tender inflamed bursa

corns - inflamed areas of thick skin over proximal interphalangeal joints

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12
Q

Mallet Toe

A

flextion at distal IP joint

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13
Q

Hammer Toe

A

extension at MP joint and flexion at proximal IP joint

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14
Q

Claw Toe

A

extension at the MP joint and flextion at both the proximal and distal IP joint

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15
Q

Trigger Toe

A

occurs in the large toe (extend MP, flex IP)

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16
Q

Medial and Lateral plantar n.

A

dividion of tibial n.

supply all intrinsic mm of the food (except two intrinsic dorsum mm)

supply plantar skin

17
Q

Cutaneous Innervation of Leg

A

common fibular n.

18
Q

Medial Plantar n.

A

larger of the two terminal branches of tibial n.

Innervation of

ABductor hallucis

F.D.B.

medial one lumbrical

F.H.B

19
Q

Lateral Plantar n.

A

smaller of the two terminal branches of tibial n.

ABductor digiti minimi

Quadratus plantae

Lateral three lumbricals

ADductor hallucis

F.D.M.B

interossei

20
Q

Dorsialis Pedis

A

dorsalis pedis runs anteromedially

Divides into:

Acruate artery

Deep plantar artery

21
Q

Arcuate Artery

A

runs laterally across metatarsal base (deep to extensor tendons)

gives rise to 2nd to 5th dorsal metatarsal arteries

gives rise to dorsal digital arteries

22
Q

Deep Plantar artery

A

passes through 1st interosseous space

joins lateral planter artery to form the plantar arch

gives rise to first dorsal metatarsal artery

23
Q

Medial Plantar Artery

A

passes distally between abductor hallucis and FDB

Gives rise to medial two plantar metatarsal and plantar digial arteries

24
Q

Lateral plantar artery

A

runs with lateral plantar n

terminates by joining deep plantar artery forming the plantar arterial arch

gives rise to 3rd-6th plantar metatarsal and plantar digital arteries

25
Q

Foot Arches

A

formed by tarsal and metatarsals

functions: absorb shock during weightbearing, makes foot adaptable to surface and weight changes

26
Q

Longitudinal arch

A

consits of medial and lateral parts

formed by calcaneus, talus, navicular, three cuneiforms, and medial three metatarsals

formed by calcaneus, cuboid and lateral two metatarsals

27
Q

Transverse Arch

A

runs between medial and lateral longitudinal arches

formed by cuboid, three cuneiforms, and metatarsal bases

MSKI Midterm (12 decks)

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