lower extremity - leg and foot

Question 1

the deep fascia of the leg

Answer 1

crural fasia

Question 2

compartments of the leg

Answer 2

posterior
lateral
anterior

Question 3

posterior (superficial and depp) leg compt innervation

Answer 3

tibial nerve

Question 4

list the superficial posterior leg muscles

Answer 4

gastrocnemius
soleus
plantaris

Question 5

which muscle attaches from the posterior tibia & fibula TO calcaneus via calcaneal tendon

Answer 5

soleus

Question 6

attachments of gastrocnemius

Answer 6

medial and lateral femoral condyles TO calcaneus (via calcaneal tendon)

Question 7

another word for calcaneus tnedon

Answer 7

achilles tendon

Question 8

diff bn gastrocnemius action and soleus action

Answer 8

both: plantarflexion
gastrocnemius: knee flexion (bc crosses knee joint posteriorly)

Question 9

list the deep posterior muscles of leg

Answer 9

flexor hallucis longus
tibialis posterior
flexor digitorum longus
popliteus

Question 10

which muscle of deep posterior compartment of leg attaches from posterior fibula & tibia TO tarsal and metatarsal

Answer 10

tibialis posterior

Question 11

attachments & action of flexor hallucis longus

Answer 11

posterior fibula to distal phalanx of Big toe

flexes 1st digit (big toe) & plantarflexion

Question 12

attachments and action of flexor digitorum longus

Answer 12

posterior tibia to distal phalanx of digits 2-5

flexes 2-5 digits & plantarflexion

Question 13

action of tibialis posterior

Answer 13

plantarflexion & inversion

Question 14

sciatic nerve gives rise to what nerves that provide motor below the knee

Answer 14

tibial and common fibular

Question 15

for the posterior leg (deep and superficial) what nerve innervates it

Answer 15

tibial nerve

Question 16

lateral leg compt innervation

Answer 16

superficial fibular nerve

Question 17

list muscles of lateral compt

Answer 17

fibularis (peroneus) longus & brevis

Question 18

attachment of fibularis longus

Answer 18

proximal fibula –> plantar surface of medial tarsal and metatarsal

Question 19

attachment of fibularis brevis

Answer 19

distal fibula to 5th metatarsal

Question 20

action of the lateral compt of leg

Answer 20

foot eversion and ankle plantarflexion

Question 21

the superficial fibular nerve innervates what compartment

Answer 21

lateral leg compt

Question 22

anterior leg compt innervation

Answer 22

deep fibular nerve

Question 23

list muscles of ant compt of leg

Answer 23

tibialis anterior
extensor hallucis longus
extensor digitorum longus

Question 24

what muscle attaches from lateral tibia condyle and fibula –>distal phalanx of toes 2-5

Answer 24

extensor digitorum longus

Question 25

what are the attachments for the tibialis anteror

Answer 25

superior tibia --> plantar surface of medial tarsal and metatarsals

Question 26

what are the attachments for extensor hallucis longus

Answer 26

fibula anterior --> distal phalanx of big toe

Question 27

action of tibialis anterior

Answer 27

dorsiflexion | inversion

Question 28

action of extensor hallucis longus

Answer 28

dorsiflexion | extends great toe

Question 29

action of extensor digitorum longus

Answer 29

dorsiflexion | extend toes 2-5

Question 30

what branch of common fibular nerve innervates anterior compt of leg

Answer 30

deep fibular nerve

Question 31

list of arteries from pelvis to knee

Answer 31

external iliac --> femoral --> popliteal artery

Question 32

is the popliteal artery anterior or posterior

Answer 32

posterior

Question 33

what does the popliteal artery bifurcate into

Answer 33

anterior tibial and posterior tibial arteries (in proximal posterior leg)

Question 34

what nerve does the posterior tibial artery course with through the posterior compt

Answer 34

tibial nerve

Question 35

whats the superficial structure on plantar aspect of the foot

Answer 35

plantar aponeurosis (fascia)

Question 36

plantar aponeurosis attachements:

Answer 36

calcaneus to proximal phalanx of digits 1-5

Question 37

fucntions of plantar aponeurosis

Answer 37

heel strike to mid stance absorbs loads by body weight | mid stance to push off contribute to rigid nature of foot during push off

Question 38

list intrinsic muscles in layer 1 (most superficial) on plantar surface

Answer 38

abductor hallucis abductor digiti minimi flexor digitorum brevis

Question 39

list intrinsic muscles in layer 2 on plantar surface

Answer 39

quadratus plantae lumbricals flexor hallucis longus flexor digitorum longus

Question 40

list intrinsic muscles in layer 3 on plantar surface

Answer 40

flexor hallucis brevis flexor digiti minimi brevis adductor hallucis

Question 41

list intrinsic muscles in layer 4 (most deep) on plantar surface

Answer 41

``` plantar interossei (3) dorsal interossei (4) ```