Lower Limb Anatomy Nbme High Yield

Front 1

Boundaries of the femoral triangle

Back 1

Superiorly: Inguinal ligament

Laterally: Sartorius

Medially: Adductor Longus

Front 2

Spatial relation of the femoral nerve to the femoral sheath

Back 2

immediately lateral

Front 3

spatial relation of the femoral vein to the femoral artery

Back 3

immediately medial. both are in femoral sheath

Front 4

contents of the femoral canal

Back 4

deep inguinal lymph nodes

Front 5

ligament that serves as the medial boundary of the femoral ring

Back 5

lacunar ligament

Front 6

structures that course through only a portion of the adductor canal

Back 6

saphenous nerve

nerve to vastus medialis

descending genicular vessels

Front 7

muscle that forms the floor of the popliteal fossa

Back 7

popliteus

Front 8

muscle that serves as chief flexor at the hip joint

Back 8

iliopsoas

Front 9

muscle that prevents the pelvis from tilting when walking

Back 9

gluteus medius

Front 10

muscle that extends the leg

Back 10

quadriceps femoris

Front 11

muscle that unlocks the knee joint

Back 11

popliteus

Front 12

condition that occurs due to disruption of nerve supply to the tibialis anterior

Back 12

"foot drop"

nerve supply to tibialis anterior and other muscles in anterior leg compartment is the deep fibular nerve

Front 13

chief invertors of the foot

Back 13

tibialis anterior

tibialis posterior

Front 14

chief evertors of the foot

Back 14

fibularis longus

fibularis brevis

Front 15

Function of ACL

Back 15

prevents posterior displacement of femur on tibia

Front 16

Laxity of which ligament can produce a positive valgus maneuver

Back 16

MCL

Front 17

most commonly injured ankle ligament

Back 17

anterior talofibular

Front 18

If this ligament is compromised, leads to "flat foot"

Back 18

plantar calcaneonavicular ligament. AKA "spring" ligament

Front 19

major artery to the head of the femur in an adult

Back 19

medial circumflex artery

Front 20

nerve affected by a fracture of the head and neck of fibula

Back 20

common fibular

Front 21

avulsion fracture of the 5th metatarsal will damage which tendon?

Back 21

tendon of fibularis brevis

Front 22

Describe the innervation of the adductor magnus

Back 22

Anterior fibers: obturator

Posterior fibers: tibial branch of sciatic

Front 23

tarsal tunnel syndrome is due to an affliction of which nerve?

Back 23

tibial nerve

Front 24

which nerve provides cutaneous innervation to the medial side of the foot

Back 24

saphenous nerve (L4)

Front 25

which nerve provides cutaneous innervation to the lateral side of the foot

Back 25

sural nerve (S1)

Front 26

which nerve provides cutaneous innervation of the heel

Back 26

tibial nerve

Front 27

which nerve provides cutaneous innervation to the dorsal aspect of the web between the 1st and 2nd toe?

Back 27

deep fibular nerve

Front 28

which nerve provides cutaneous innervation to most of the dorsum of the foot

Back 28

superficial fibular nerve

Front 29

Major dermatome to the big toe

Back 29

L4

Front 30

dermatome to the small toe

Back 30

S1

Front 31

spinal level of the patellar reflex

Back 31

L4

Both afferent and efferent limbs of the reflex arc travel in the femoral nerve. result in contraction of the quadriceps femoris

Front 32

spinal level of the achilles reflex

Back 32

S1
Both afferent and efferent limbs arc travel in the tibial nerve. Result in contraction of the triceps surae (gastrocnemius + soleus)

Front 33

Locking of the knee when walking suggests injury to what structure?

Back 33

Meniscus

Front 34

The "terrible triad" consists of injuries to:

Back 34

MCL
ACL
Medial meniscus