Leg, Foot, Ankle

Question 1

popliteal fossa

Answer 1

contains popliteal a/v, tibial and common fibular nn
boundaries: semi mebranosus/tendinosus, biceps femoris long head, gastroc heads, plantaris

Question 2

actions of anterior compartment of leg

Answer 2

dorsiflexion, inversion, eversion

Question 3

posterior compartment of leg actions

Answer 3

plantarflexion

Question 4

lateral compartment of the leg actions

Answer 4

eversion, plantarflexion

Question 5

tibialis anterior

Answer 5

origin: lateral condyle of tibia
insertion: medial cuneiform and base of metatarsal 1
innervation: deep fibular n
action: dorsiflexion, inversion

Question 6

extensor hallicus longus

Answer 6

origin: middle, medial fibula, IOM
insertion: base of distal phalanx of digit 1
innervation: deep fibular
action: extend digit 1, dorsiflex

Question 7

extensor digitorum longus

Answer 7

origin: medial surface of fibula, lateral tibial condyle
insertion: distal /middle phalanges of digits 2-5
innervation: deep fibular n
action:extend 2-5 and dorsiflex

Question 8

fibularis tertius

Answer 8

origin: distal anterior fibula
insertion: dorsal/medial base of metatarsal 5
innervation: deep fibular n
action: dorsiflex, evert

Question 9

fibularis longus

Answer 9

origin: upper, lateral fibula and head, IOM
insertion: matatarsal 1 and medial cuneiform
innervation: superficial fibular n
action: plantarflex, evert

Question 10

fibularis brevis

Answer 10

origin: lateral, distal surface of the fibula
insertion: lateral tibercle base of metatarsal 5
innervation: superficial fibular n
action: plantarflex, evert

Question 11

gastrocnemius

Answer 11

origin: upper posterior medial/lateral femoral condyles
insertion: calcaneal tendon
innervation: tibial n
action: plantarflex and flex knee

Question 12

plantaris

Answer 12

origin: lateral supracondylar ridge of femur
insertion: calcaneal tendon
innervation: tibial n
action: plantarflex, flex knee

Question 13

soleus

Answer 13

origin: soleal line, medial tibia, posterior fibular head/neck/shaft
insertion: calcaneal tendon
innervation: tibial n
action: plantarflex

Question 14

popliteus

Answer 14

origin: lateral femoral condyle
insertion: posterior proximal tibia
innervation: tibial n
action: unlock knee by lateral rotation of femur in close chain, medially rotate tibia in open chain

Question 15

flexor digitorum longus

Answer 15

origin: medial posterior tibia
insertion: distal phalanges of 2-5
innervation: tibial n
action: flex 2-5 toes

Question 16

flexor hallicus longus

Answer 16

origin: inferior 2/3rds posterior fibula, IOM
insertion: plantar distal phalanx digit 1
innervation: tibial n
action: flex digit 1, invert, plantarflex

Question 17

tibialis posterior

Answer 17

origin: posterior IOM, shafts of tibia and fibula
insertion: navicular and medial cuneiform tuberosities
innervation: tibial n
action: plantarflex, invert

Question 18

tarsal tunnel syndrome

Answer 18

pressure on the tibial n in the tarsal tunnel caused by ankle sprain, inflammation, flat feet

Question 19

first layer of intrinsic foot muscles

Answer 19

abductor hallicus
flexor digitorum brevis
abductor digiti minimi

Question 20

second layer of intrinsic foot muscles

Answer 20

quadratus plantae
lumbricals

Question 21

third layer of intrinsic foot muscles

Answer 21

flexor hallicus brevis
adductor hallicus, oblique and transverse heads
flexor minimi brevis

Question 22

fourth layer of intrinsic foot muscles

Answer 22

dorsal interossei
plantar interossei