anatomy Flashcards
where does the superficial fibular artery run?
laterally to supply the peroneals
where does the deep fibular nerve run?
more anteriorly to supply the anterior muscles then flows down to the leg via AJ
name the muscles in the 1st layer of the foot
abductor digiti minimi
abductor hallucis
flexor dig brevis
name the muscles in the 2nd layer of the foot
lumbricals
flex dig long
flex hall long
quadratus plantae
name the muscles in the 3rd layer of the foot
adductor hallucis (transverse and oblique heads)
flexor hallucis brevis
TP tendon
fib long tendon
flexor dig minimi
name the muscles in the 4th layer of the foot
deep transverse metatarsal ligament
interossei plantar + dorsal
what nerve innervates flexor digitorum brevis and abductor hallucis?
medial plantar nerve(from tibial nerve)
what nerve innervates quadratus plantaee and abductor digiti minimi?
lateral plantar nerve (from tibial nerve)
which cutaneous nerve covers most of the dorsum of the foot?
superficial fibular
which cutaneous nerve covers the little crouch type area between the 1st and second (dorsal foot)?
deep fibular
which cutaneous nerve covers the lateral side of the foot (just a slither dorsally and a little more plantarly + lateral leg)
sural
what cutaneous neerve supplies the heel of the foot? (plantar posterior asp)
the tibial
what cutaneous nerve supplies the tips of toes 1-3 and half of 4?
medial plantar
what cutaneous nerve supplies the tips of toe 5 and half of 4?
lateral plantar
what cutaneous nerve supplies the lateral ankle?
saphenous
outline the origins of :
FHL, FDL and TP
TP: interrosseus + tibia + fibula
FHL: fibula + interosseus
FDL: JUST medial tibia
what innervates the skin between the 1st and 2nd toes?
terminal branches of deep fibula. can used to monitor the status of deep fibular nerve (i.e. foot drop)
where does the deep fibula nerve go?
right down over the ant surface of the leg with the anterior tibial artery and follows it over the ankle into the foot between the 1st and 2nd toes
where to TA, EHL and EDL originiate? each have 2
TA: tibia + interossues
EHL: fibula + interosseus
EDL: prox med fibula + lateral tibial condyle
what innervates EDB?
deep fibular
where do EHB and EDB originate from?
superolateral aspect of calcaneus
what innervates flexor digitorum brevis?
medial plantar
what is the plantar equivalent of the “arcuate “ artery
deep plantar arch
what else originates from the same place that the plantar aponeurosis(pfascia) originates i.e. plantar calc @ ant calcaneal tubercle
abductor halluces
FDB
what innervates FDB?
medial plantar nerve from tibial nerve
what innervates quadratus plantae?
lateral plantar nerve
what do we call the retinaculum that holds in the tendons laterally (peroneals)
superior fibular retinaculum
inferior fibular retinaculum
which is more superficial: FDL or FDB?
FDB runs on top of FDL
where does the great saphenous vein run? in comparison to the small saphenous vein?
great runs more anteromedially down the leg into the foot anteromedially.
small runs posteriorly along the tibia and postero- laterally into the foot
