Foot Flashcards Preview

Exam 3- Anatomy > Foot > Flashcards

Flashcards in Foot Deck (35)
Loading flashcards...
1

layer one of the foot consists of which muscles

flexor digitorum brevis
abductor hallicus
abductor digiti minimi

2

layer 2 of the foot consists of which muscles

lumbricals
quadratus plantae
flexor hallicus longus
flexor digitorum longus

3

layer 3 of foot has which muscles

flexor digiti minimi brevis
flexor hallucis brevis (w/sesamoids)
adductor hallucis m.
oblique head

4

layer 4 of the foot was which muscles

tibialis posterior
peroneus longus
interossei

5

fascia of the foot

dorsum
sole of foot
plantar aponeurosis

6

dorsum of foot

thin and continuous fascia with extensor retinaculum

7

sole of foot fascia

called plantar fascia
central part thickens to become plantar aponeurosis

8

plantar aponeruosis

consists of longitudinally arranged band of dense connective tissue

arises from calcenous and covered length of sole

divides into 5 bands and helps support the longitudinal foot arch

9

plantar fasciitis

inflammation of plantar aponeurosis at proximal attachment of calcaneus
caused by running, high impact exercise, worn shoes, overweight

may lead to development of bony processes (especially from medial calcaneal tubercle)

10

muscles of the dorsum of foot

extensor hallucis brevis (1st phalanx)
extensor digitorum brevis (2-4 phallanges)

joins long tendons at MP joint

innervation: deep fibular nerve

forms fleshy mass on dorsum of foot

11

sole of the foot muscles

four layers, work as synergists

maintains foot arches and allows us to stand on uneven ground

12

first layer plantar muscles attachments

extend from calcaneus to phalanges

13

quadratus plante

second layer

joins tendons of f.d.l. to calcaneus

assits f.d.l. in flexing lateral four digits

keeps toes strait when flexing

14

second layer of plantar muscles

vascular and nerve layer
also have FHL and FDL tendons but not considered part of these muscles

15

lumbricals

original from F.D.L. tendons
flex MP joint
extend PIP and DIP joints

16

Plantar muscles: third layer attachments

Three short muscles to first and fifth digits (anterior half of foot)

17

adductor hallucis heads

transverse and oblique

18

flexor hallucis brevis

two heads (medial & lateral)

cover plantar surface of first metatarsal


tendons have sesamoid bones

19

function of sesamoid bones of FHB

protect first metatarsal head and tendon of FHL when standing and walking

20

fourth layer of plantar muscles

consists of interossei between metatarsals

three plantar interossei to pull towards 2nd digits

four dorsal interossei pull away from second digit

fibularis longus and tibias posterior tendons in this layer

21

medial plantar nerve supplies which muscles

abductor hallucis
flexor digitorium brevis
medial one lumbrical
flexor hallicus brevis

22

lateral plantar nerve supplies with muscles

abductor digiti minimi
quadratis plantae
lateral three lumbricals
adductor hallucis
flexor digiti minimi brevis
interossei

23

Terminal branches of which arteries supply the foot?

anterior and posterior tibial arteries

24

arteries in the dorsum of foot

dorsalis pedis

runs anteromedially and divides into arcuate artery and deep plantar artery

25

Arcuate artery

runs laterally across metatarsal bases

gives rise to 2nd to 5th dorsal metatarsal arteries (dorsal digital arteries)

26

Deep plantar artery

passes through first interosseous space and joins lateral planter artery to form the planter arch

gives rise to first dorsal metatarsal artery

27

blood supply of the sole of foot is derived from which artery? divides into?

Derived from posterior tibial artery


Divides tomedial and lateral plantar arteries
deep to abductor hallucis

28

medial plantar artery

passes distally between abductor hallucis and FDB

gives rise to medial two plantar metatarsal and plantar digital arteries

29

lateral plantar artery

runs with lateral plantar nerve

terminates by joining deep plantar artery forming the plantar arterial arch

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

30

what forms the foot arches

tarsal and metatarsal bones