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Flashcards in functional anatomy of foot Deck (24):
1

bones of the foot

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

2

big toes

2 phalanges, others have 3

3

line thru MT 3 & 4 divides

medial and lateral longitudinal arches
assist in weight bearing

4

med long arch

calc
talus
navicular
cuneiform
first 3 MT's

high arch: distivutes weight from fib to talus

5

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

transverse arch: transfers weight from 1 foot to another

6

lateral longitudinal arch

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

7

hindfoot

calc & talus

8

midfoot

navicular
cuboid
cuneiform

9

forefoot

MT's and phalanges

10

hindfoot and midfoot separated by...

transverse tarsal joint

11

mid and forefoot separated by...

TMT joints

12

dorsal muscles

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

deep fibular nerve

13

plantar aponeurosis

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

14

contents of med plantar aponeurosis

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

15

contents of lat plantar aponeurosis

lat plantar A&N, abductor and flexor digiti V

16

contents of central plantar aponeurosis

largest, filled with remaining structures
**plantar fasciitus occurs here, inflammation

17

layer 1 of plantar muscles

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

18

layer 2 of plantar muscles

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

19

layer 3 of plantar muscles

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

20

layer 4 of plantar muscles

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

21

dorsum innervation

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

22

plantar innervation

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

blood to dorsum

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

blood to plantar

med&lat branches of post tibial A
joins dorsalis pedis to form deep plantar arch