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Gross Anatomy > functional anatomy of foot > Flashcards

functional anatomy of foot Flashcards

1
Q

bones of the foot

A 
talus
calcaneous
navicular
cuboid
cuneiform (med, inter, lat)
MT bones
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2
Q

big toes

A

2 phalanges, others have 3

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3
Q

line thru MT 3 & 4 divides

A

medial and lateral longitudinal arches

assist in weight bearing

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4
Q

med long arch

A 
calc
talus
navicular
cuneiform
first 3 MT's

high arch: distivutes weight from fib to talus

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5
Q

curved line btw the cuneiforms and cuboid and bases of MTs forms

A

transverse arch: transfers weight from 1 foot to another

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6
Q

lateral longitudinal arch

A 
calc
cuboid
MT 45
lower and closer to ground
weight from leg--> foot and onto the ground
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7
Q

hindfoot

A

calc & talus

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8
Q

midfoot

A

navicular
cuboid
cuneiform

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9
Q

forefoot

A

MT’s and phalanges

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10
Q

hindfoot and midfoot separated by…

A

transverse tarsal joint

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11
Q

mid and forefoot separated by…

A

TMT joints

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12
Q

dorsal muscles

A

EHB: MTP j,
EDB: MTP j of other toes,

deep fibular nerve

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13
Q

plantar aponeurosis

A 
central portion of plantar fascia. thick and tough. divides into slips anteriorly
3 compartments:
med
lat
central
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14
Q

contents of med plantar aponeurosis

A

med plantar N & vessel, abductor hallicus, flexor hallicus brevis

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15
Q

contents of lat plantar aponeurosis

A

lat plantar A&N, abductor and flexor digiti V

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16
Q

contents of central plantar aponeurosis

A

largest, filled with remaining structures

**plantar fasciitus occurs here, inflammation

17
Q

layer 1 of plantar muscles

A

abductor hallicus: med plantar n
FDB: medial plantar n
abductor digiti V: lateral planter n.

18
Q

layer 2 of plantar muscles

A

quadratus plantae: lanteral plantar n
lumbricals: flex MTP, extend IP
med 2: medial plantar
lat 2: lateral plantar

19
Q

layer 3 of plantar muscles

A

FHB: medial plantar
adductor hallicus: lateral plantar
FDM: lat plantar

20
Q

layer 4 of plantar muscles

A

interossei: 2nd toe is the middle, 3 plantar (medial MT345), 4 dorsal (med MT2, lat MT234)

21
Q

dorsum innervation

A

sensory: common fib
deep fib: web space btw 1t 2 toes
sup fib: rest of dorsum
L5 dermatome

22
Q

plantar innervation

A

tibial nerve: 2 branches
1. med plantar n: sensory to med foot
2. lat plantar n: lateral foot sensory
saphenous: cut to skin along med ankle and big toe, L4 dermatome
suralL from sciatic, sens to skin over lat ankle and toe 5, S1 dermatome

23
Q

blood to dorsum

A

dorsalis pedis A (continuation of ant tib A)
palpation on navicular
anastomses with lat plantar branch of tib a–>deep plantar arch
veins: small saphenous–>lat leg/foot
great saphenous–> med leg/foot

24
Q

blood to plantar

A

med&lat branches of post tibial A

joins dorsalis pedis to form deep plantar arch

Gross Anatomy (18 decks)

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