dorsum of foot

Question 1

dermatomes of med, lat malleolus and 1st toe interspace

Answer 1

med- l4
lat-s1
mid region and interspace- l5

Question 2

path of superficial fib nerve

Answer 2

emerges from fibularis brevis, down lateral leg and supplies ant lat maleolus

Question 3

where does saphenous nerve go to

Answer 3

will be anterior to med malleolus and terminates there supplies all around med malleolus

w/ long saphenous vein

Question 4

where does sural nerve go to

Answer 4

runs to post lat malleolus where it changes its name to lat dorsal cutaneous that runs to pinky toe

w/ short saphenous v

Question 5

2 branches of the dorsal fibular nerve in the foot

Answer 5

lat branch- also regulates blood flow

med branch- innervates area between 1st and 2nd toe

Question 6

what does the EHB tendon cross and what’s the deficit

Answer 6

• deep fibular nerve
• dorsalis pedis artery and veins

functional deficit in 1 internee space

Question 7

path of dorsals pedis artery

Answer 7

• continuation of tibial art

- provides for both maleolis and then runs to the 1st intermetatarsal space where it divides into 2 terminal branches

Question 8

branches of dorsal pedis artery (6)

Answer 8

1- deep plantar artery to go to plantar foot to make plantar arch

2- 1st dorsal metatarsal artery to supply big toe

3- lat +med tarsal artery

4- arcuate artery

5- perforating artery

6- dorsal metatarsal

Question 9

what makes up the medial mallolar astemosis

Answer 9

Anterior medial malleolar A
Anterior lateral malleolar A

both from ant tibial

Question 10

what makes up posterior malleolar astemosis

Answer 10

posterolateral melleoloar (from fib artery)

Posterior medial malleolar (from post tibial)

Question 11

where can u palpate the dorsals pedis artery

Answer 11

lat to EHL tendon and medial to EDL tendons with foot slightly extended

Question 12

what supplies ant and post med calcaneous

Answer 12

ant: tibial, lateral plantar, saphenous

post; tibial, lateral plantar

Question 13

what supplies ant and post calcaneous

Answer 13

ant- lat plantar

post- sural

Question 14

what is halux valgus and what is it caused by

Answer 14

result of degenerative joint disease

-sesamoid bones shift between 1st and 2nd metatarsals

Question 15

what is hammer toe and what is it due to

Answer 15

prox phalanx is hyperextended at metatarsophalengeal j

middle phalanx is plantar flexed

due to weakness of the umbricals + interossei

Question 16

what is mallet toe

Answer 16

distal phalanx is flexed at distal interphalengeal

Question 17

what is clubfoot and who does it affect

Answer 17

congenital birth defect that usually affects boys

• ankle is planter flexed and foot is inverted