Exam 3: Lower limb contd lecture i

Question 1

anterior lower leg compartment: deep fibular nerve is one of the _ terminal branches of the _ nerve

Answer 1

the 2 terminal branches of the common fibular nerve

Question 2

anterior lower leg compartment: deep fibular nerve runs alongside _ artery

Answer 2

anterior tibial artery

Question 3

anterior lower leg compartment: deep fibular nerve also travels into _ to innervate structures there

Answer 3

foot

Question 4

anterior lower leg compartment: anterior tibial artery is one of the terminal branches of the

Answer 4

popliteal artery

Question 5

anterior lower leg compartment: anterior tibial artery supplies many structures in the

Answer 5

anterior compartment of the leg

Question 6

anterior lower leg compartment: anterior tibial artery, at the ankle joint, its name changes to the

Answer 6

dorsalis pedis artery

Question 7

lateral lower leg compartment: fibularis longus origin

Answer 7

from head and upper shaft of fibula

Question 8

lateral lower leg compartment: fibularis longus insertion

Answer 8

to 1st metatarsal and medial cuneiform

Question 9

lateral lower leg compartment: fibularis longus innervation

Answer 9

superficial fibular nerve

Question 10

lateral lower leg compartment: fibularis longus action

Answer 10

evert foot; weakly plantarflex ankle

Question 11

lateral lower leg compartment: fibularis brevis is deep to

Answer 11

deep to fibularis longus

Question 12

lateral lower leg compartment: fibularis brevis origin

Answer 12

from inferior 2/3 of fibular shaft

Question 13

lateral lower leg compartment: fibularis brevis insertion

Answer 13

to base of 5th metatarsal

Question 14

lateral lower leg compartment: fibularis brevis action

Answer 14

evert foot; weakly plantarflex ankle

Question 15

lateral lower leg compartment: superficial fibular nerve a terminal branch of the _ nerve

Answer 15

common fibular nerve

Question 16

lateral lower leg compartment: superficial fibular nerve, in addition to muscles, supplies the skin on the

Answer 16

the distal part of the anterior leg and the skin on nearly all the dorsum of the foot

Question 17

Posterior compartment of leg and sole of foot: the superficial subcompartment includes (3 muscles)

Answer 17

gastrocnemius (2 heads), soleus, and plantaris

Question 18

Posterior compartment of leg and sole of foot: the deep subcompartment includes (3 muscles)

Answer 18

flexor hallucis longus, flexor digitorum longus, and tibialis posterior

Question 19

Posterior compartment of leg and sole of foot: calcaneal (Achilles) tendon is the common tendon of insertion for (2 muscles)

Answer 19

gastrocnemius and soleus

Question 20

Posterior compartment of leg and sole of foot: calcaneal (Achilles) tendon attaches to

Answer 20

calcaneal tuberosity

Question 21

Posterior compartment of leg and sole of foot: gastrocnemius origin

Answer 21

from near the lateral and medial femoral condyles (fibers attach laterally)

Question 22

Posterior compartment of leg and sole of foot: gastrocnemius insertion

Answer 22

to posterior calcaneus

Question 23

Posterior compartment of leg and sole of foot: gastrocnemius innervation

Answer 23

tibial nerve

Question 24

Posterior compartment of leg and sole of foot: gastrocnemius action

Answer 24

plantarflexes ankle; flexes knee

Question 25

Posterior compartment of leg and sole of foot: gastrocnemius, together with soleus, forms

Answer 25

triceps surae

Question 26

Posterior compartment of leg and sole of foot: soleus origin

Answer 26

from posterior, superior fibula, soleal line of tibia, and a tendinous arch btwn the two (fibers attach medially)

Question 27

Posterior compartment of leg and sole of foot: soleus insertion

Answer 27

to posterior calcaneus

Question 28

Posterior compartment of leg and sole of foot: soleus is mostly located deep to _

Answer 28

gastrocnemius

Question 29

Posterior compartment of leg and sole of foot: soleus innervation

Answer 29

tibial nerve

Question 30

Posterior compartment of leg and sole of foot: soleus action

Answer 30

plantarflexes ankle

Question 31

posterior compartment of leg and sole of foot: plantaris origin

Answer 31

from inferior end of lateral supracondylar line of femur

Question 32

posterior compartment of leg and sole of foot: plantaris insertion

Answer 32

to posterior calcaneus

Question 33

posterior compartment of leg and sole of foot: plantaris: its long tendon runs btwn _ and _

Answer 33

gastrocnemius and soleus

Question 34

posterior compartment of leg and sole of foot: plantaris innervation

Answer 34

tibial nerve

Question 35

posterior compartment of leg and sole of foot: plantaris action

Answer 35

plantarflexes ankle (weakly)

Question 36

posterior compartment of leg and sole of foot: popliteus origin

Answer 36

from lateral femoral condyle and lateral meniscus (knee joint aka mensici)

Question 37

posterior compartment of leg and sole of foot: popliteus insertion

Answer 37

to posterior tibia (from femur (O) to tibia (I))

Question 38

posterior compartment of leg and sole of foot: popliteus innervation

Answer 38

tibial nerve

Question 39

posterior compartment of leg and sole of foot: popliteus action

Answer 39

weakly flexes and “unlocks” the knee by rotating femur slightly relative to tibia

Question 40

posterior compartment of leg and sole of foot: flexor hallucis longus origin

Answer 40

from posterior fibular shaft

Question 41

posterior compartment of leg and sole of foot: flexor hallucis longus insertion

Answer 41

to distal phalanx of great toe

Question 42

posterior compartment of leg and sole of foot: flexor hallucis longus its tendon crosses that of _ on the sole of the foot

Answer 42

flexor digitorum longus

Question 43

posterior compartment: flexor hallucis longus innervation

Answer 43

tibial nerve

Question 44

posterior compartment of leg and sole of foot: flexor hallucis longus action

Answer 44

flexes great toe and weakly plantar flexes ankle

Question 45

posterior compartment of leg and sole of foot: flexor digitorum longus origin

Answer 45

from posterior tibia

Question 46

posterior compartment of leg and sole of foot: flexor digitorum longus insertion

Answer 46

to distal phalanges of lateral 4 toes

Question 47

posterior compartment of leg and sole of foot: flexor digitorum longus arises medial to

Answer 47

flexor hallucis longus

Question 48

posterior compartment of leg and sole of foot: flexor digitorum longus innervation

Answer 48

tibial nerve

Question 49

posterior compartment of leg and sole of foot: flexor digitorum longus action

Answer 49

flexes lateral 4 digits; plantarflexes ankle

Question 50

medial side of foot associated w/ what motion?

lateral side of foot associated w/ what motion?

Answer 50

medially inversion sole of foot

laterally eversion sole of foot

Question 51

lateral lower limb compartment usu associated what action

Answer 51

eversion

Question 52

t/f: gastrocnemius is a 2 head 2 joint muscle

Answer 52

true

Question 53

flexor hallucis longus is on what side (medial vs lateral)

flexor digitorum longus is on what side (medial vs lateral)

Answer 53

flexor hallucis longus = lateral fibular side

flexor digitorum longus = medial tibia side

Question 54

tibialis posterior origin

Answer 54

from posterior tibia and fibula and interosseous membrane

Question 55

tibialis posterior insertion

Answer 55

to inferior surfaces of several tarsals and metatarsals

Question 56

tibialis posterior innervation

Answer 56

tibial nerve

Question 57

tibialis posterior action

Answer 57

inverts foot; plantarflexes ankle