Knee Flashcards
what muscles form the popliteal fossa
gastrocnemius m → medial and lateral heads
semimembranous m
semitendinosus m
biceps femoris m
medial borders of the popliteal fossa
semimembranosus m
semitendinosus m
lateral border of the popliteal fossa
biceps femoris m
inferior border of the popliteal fossa
gastrocnemius m → medial and lateral heads
what are the contents of the popliteal fossa
popliteal vein
lesser/short saphenous vein
popliteal a
tibial n
common fibular n
sural n
floor of popliteal fossa
knee joint capsule
distal femur
proximal tibia
popliteus m
roof of popliteal fossa
popliteal fascia
nerves of the popliteal fossa (4)
tibial
common fibular
sural
posterior femoral cutaneous
vessels of the popliteal fossa (3)
popliteal a
popliteal v
short saphenous v
where do baker’s cysts occur
popliteal fossa
the tibial n and common fibular n are branches of the
sciatic n
what is the “belly” of the leg
gastrocnemius m
the patella is a __ bone
in the __ tendon
sesamoid
quadriceps femoris
fibular collateral ligament is same same
lateral ligament
tibial collateral ligament is same same
medial ligament
what are the muscles of the lateral/fibular/peroneal compartment of the lower leg
fibularis longus
fibularis brevis
what is the action of the lateral/fibular/peroneal compartment muscles
evert foot
what nerves innervate the lateral/fibular/peroneal compartment
superficial fibular/peroneal
what is the pathway of the superficial fibular/peroneal n
sciatic n → common fibular/pronea n → branches around lateral knee → superficial fibular/peroneal n → lateral compartment
dermatomes of the anterior compartment of the lower leg
L4
L5
S1
actions of the muscles of the anterior compartment
dorsiflex foot
invert foot
extend toes
muscles of the anterior compartment of the lower leg
tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis tertius
actions of the posterior compartment of the lower leg
plantar flex ankle
invert foot
flex toes
all of the posterior muscles of the posterior compartment of the lower leg are innervated by the
tibial n (branch of sciatic n)
superficial m of the posterior compartment of lower leg
gastrocnemius
plantaris
soleus
deep muscles of the posterior compartment of the lower leg
popliteus plus tom, dick, harry
popliteus
tibialis posterior
flexor digitorum longus
flexor hallicus longus
the superficial muscles of the posterior compartment of the lower leg insert into the
calcaneus via achilles tendon
origin of the gastrocnemius
distal femur
origin of the plantaris
distal femur
origin of soleus
proximal tibia
the tendon of the popliteus is on the __ side at the knee
lateral
the tibial n travels __ to
__ the foot and toes
posteriorly
flex
the tibial n travels __
to __ the foot
medially
invert
the common fibular/peroneal n travels __
to __ the foot
and __ the toes
anteriorly
dorsiflex
the common fibular/peroneal n travels __ to
__ the foot
laterally
evert
what is the tibial plafond (pilon)
ceiling of ankle joint
distal tibial articular surface
what are the arteries of the foot
posterior tibial
dorsalis pedis
the ankle is most stable when it is __
dorsiflexed
the ankle as a coronally oriented fibro-osseious ring
the deltoid ligament is located __
medially
