The Leg

Question 1

Compartments of the leg

Answer 1

Anterior
Lateral
Posterior (deep)
Posterior (superficial)

Question 2

Fascia of the leg

Answer 2

Crural fascia

Question 3

Membranes separating compartments

Answer 3

Interosseus (A/P(deep)
Transverse intermuscular spetum (Posterior)
Lateral Intramuscular septum (Lat/post (sup)
anterior intramuscular septum (ant/lat)

Question 4

Nerves and arteries of each compartment

Answer 4

Anterior - anterior tibial artery, deep fibular nerve
Posterior (deep) - Fibular artery, posterior tibial artery, tibial nerve
Lateral - superficial fibular nerve

Question 5

Anterior compartment of leg actions innervation and blood supply

Answer 5

Dorsiflexion of foot and extension of toes
Deep fibular nerve
Anterior tibial artery

Question 6

Tendons of anterior leg compartment

Answer 6

Pass anterior to ankle joint and deep to extensor retinacula

Question 7

Tibialis anterior

Answer 7

Dorsiflexes and inverts foot

Question 8

Extensor digitorum longus

Answer 8

Extends lateral 4 toes with continued action dorsiflexes foot

Question 9

Extenser hallucis longus

Answer 9

Extends the great toe and can dorsiflex

Question 10

Muscles of anterior leg

Answer 10

Tibialis anterior
Extensor digitorum longus
Extensor hallicus longus
Fibularis tertius

Question 11

Fibularis tertius

Answer 11

Dorsiflexes and everts foot

Question 12

Drop foot is a result of damage to the

Answer 12

Deep fibular nerve bc cannot dorsiflex

Question 13

Lateral compartment of the leg actions innervation and blood supply

Answer 13

Eversion of foot and plantarflexion
Superficial fibular nere
Fibular artery

Question 14

Tendons of lateral compartment

Answer 14

Run posterior to lateral malleolus and deep to superior and inferior retinacula

Question 15

Fibularis longus

Answer 15

Everts and plantarflxes

Question 16

FIbularis brevis

Answer 16

Everts and plantarflexes

Question 17

Muscles of lateral leg compartment

Answer 17

Fibularis longus

Fibularis brevis

Question 18

Posterior compartment of the leg actions innervation and blood supply

Answer 18

Plantarflexion and inversion of foot…flexion of toes
Tibial nerve
Posterior tibial artery (and fibular artery)

Question 19

Superficial muscles of posterior compartment and what they are named

Answer 19

Gastrocnemius
Soleus
Plantaris
Make up the triceps sucrae

Question 20

Tendons of superficial posterior leg muscles

Answer 20

Gastroc and soleus Fuse to from the tendocalcaneous

Question 21

Gastrocnemius

Answer 21

Plantarflexes foot and flexes leg

Question 22

Soleus

Answer 22

Plantarflexes foot

Question 23

Plantaris

Answer 23

Plantarflexes foot and leg

Question 24

Engine that drives bipedalism

Answer 24

Plantarflexion

Question 25

How does popliteal artery enter the fossa?

Answer 25

Through adductor hiatus

Question 26

Popliteal vein accepts ____ that drains superficial posterior leg

Answer 26

Small saphenous

Question 27

Common fibular nerve location and other branches

Answer 27

Under biceps femoris | Lateral sural cutaneous nerve to skin of calf

Question 28

Tibial nerve other branches

Answer 28

Medial sural cutaneous nerve that becomes sural nerve following union with the lateral branch of the common fibular nerve

Question 29

Tendons of deep muscles of the posterior compartment

Answer 29

Run posterior to medial malleolus and under flexor retinaculum to plantar side of foot EXCEPT popliteus

Question 30

Deep msucles of posterior function

Answer 30

Steady the leg on the foot when standing EXCEPT POPLITEUS

Question 31

Popliteus

Answer 31

Flexes knee and rotates tibia medially or femur laterally | Works at beginning of flexion to unlock the knee

Question 32

Muscles of deep leg compartment

Answer 32

Popliteus Tibialis posterior Flexor digitorum longus Flexor hallucis longus

Question 33

Tibialis posterior

Answer 33

Plantarflexes and inverts foot

Question 34

Flexor digitorum longus

Answer 34

Flexes lateral 4 toes and plantarflexes

Question 35

Flexor hallcisu longus

Answer 35

Flexes great toe and plantarflexes

Question 36

Moving posteriorly from medial malleolus

Answer 36

``` Tibialis posterior Flexor digitorum longus Posterior tibial artery Posterior tibial vein Tibial nerve Flexor hallucis longus ``` Tom, Dick, And Very Nervous Harry

Question 37

Knee joint articulation

Answer 37

Condyles of femur and condyles of tibia

Question 38

Movements of knee joint

Answer 38

Flexion and extension Also some medial and lateral when the leg is flexed Fully locked when fully extended

Question 39

Fibular (lateral) collateral ligament

Answer 39

Very strong Extends from lateral epicondyle of femur to fibula Damaged by medial blow

Question 40

Tibial (medial) collateral ligament

Answer 40

Strong, flat band From medial epicondyle to medial condyle of tibia Directly attached to the knee capsule and medial meniscus Damaged by lateral blow to the knee

Question 41

Medial meniscus

Answer 41

Attached to tibial collateral ligament

Question 42

Terrible triad

Answer 42

ACL, tibial collateral, and medial meniscus

Question 43

Lateral meniscus

Answer 43

Less likely to be injured and not connected to fibular collateral ligament

Question 44

ACL and PCL named for

Answer 44

Attachment on tibia

Question 45

ACL prevents

Answer 45

Anterior displacement of the tibia on the femur and hyperextension of knee joint

Question 46

ACL is slack when

Answer 46

Knee is flexed and taut when extended

Question 47

Is PCL or ACL stronger?

Answer 47

PCL

Question 48

If ACL torn, how can you test?

Answer 48

Anterior drawer sign | Tibia can be pulled anteriorly relative to the femus

Question 49

How to damage ACL

Answer 49

Excessive medial roatation or hyperextension

Question 50

PCL prevents

Answer 50

Posterior displacement of tibia on femur and hyperflexion of knee joint

Question 51

PCL damaged by

Answer 51

hyperflexion

Question 52

Tibial nerve

Answer 52

Branches from sciatic at popliteal fossa | Branches into the medial plantar and lateral plantar after the medial malleolus

Question 53

Common fibular nerve

Answer 53

Also peroneal Branches at popliteal fossa and runs laterally (medial to biceps femoris) Most common injured nerve of lower extremity

Question 54

When can common fibular be palpated?

Answer 54

When courses around neck of fibula

Question 55

When does common fibular divide?

Answer 55

At neck of fibula into superficial and deep

Question 56

Superficial fibular nerve innervates

Answer 56

Lateral compartment

Question 57

Deep fibular nerve inervates

Answer 57

Anterior compartment

Question 58

Popliteal branches into the

Answer 58

Anterior and posterior tibial arteries

Question 59

Posterior tibial artery gives rise to the

Answer 59

Fibular artery

Question 60

Posterior tibial artery becomes

Answer 60

Medial plantar artery

Question 61

Anterior tibial artery becomes

Answer 61

DOrsal pedal artery

Question 62

Anastamosis around the knee

Answer 62

Genicular anastamosis