Femoral Triangle (No OIAN) Flashcards
borders of the femoral triangle
lateral- sartorius medial - adductor longus medial floor pectinous lateral floor - iliopsoas base - inguinal ligament
what part of the femoral neurovasculature is not in the femoral sheath
femoral nerve
femoral ring vs canal
femoral ring = proximal opening of the femoral canal (entrance to abdomen)
canal is the space that holds the lymph nodes
distal (vertical) lymph nodes
run along side great saphenous vein
pass deep to inguinal ligament into exteranal iliac lymph nodes
proximal (horizontal) lymph nodes
inferior to inguinal ligament
what muscles does the femoral nerve innervate
anterior compartment
iliac, sartorius, quadriceps femoris, pectinIius
cutaneous innervation superior lateral portion of thigh
lateral femoral cutaneous
cutaneous innervation medial anterior portion of thigh
cutaneous branches of femoral
terminal branch of femoral nerve
saphenous nerve
what does the saphenous nerve innervate
cutaneous innervation for the anterior and medial portions of the leg
neuralgia paresthetic
compression of lateral femoral cutaneous nerve as it passes under the inguinal ligament
causes pain along lateral thigh
police officers often get it
what travels with the great saphenous vein
saphenous nerve
pathway of the saphenous nerve
travels in the adductor canal (does NOT pass through hiatus)
joins great saphenous vein to go down anterior portion of the leg
what vessel can be cannulated to visualize left heart and coronary vessels
femoral artery
profunda femoris
main anterial supply to the thigh
largest branch of femoral
medial circumflex femoral artery
main supply femoral head and neck
passes between iliopsoas and pectinous (goes to posterior thigh)
lateral circumflex femoral artery
supplies lateral thigh and femur head
3 branches - ascending, transverse, descending
which vessel can be used to administer drugs or for coronary bypass surgery?
great saphenous vein
what can accidentally get cut when making an incision for the great saphenous vein?
consequence?
saphenous nerve
pain along anterior and medial portion of leg
westphal’s sign
absent or decreased patellar reflex
patellar reflex
tests function of femoral nerve
L2-L4
calcanea tendon reflex
tests S1 and S2
nerve root cut- ankle reflex virtually absent
muscles that attach to pes anserinus
sartorius
semiTENDinosus
gracilis
osgood-schlatter disease
quads pull on the tendon that connects the kneecap to shin bone
tendon pulls away from shin bone
lots of pain and swelling, can cause bony numb
groin pull
at the junction between the trunk and thigh
strain/tearing of proximal attachments of thigh adductor/flexor muscles
have a pull between abdominal and leg muscles
anterior thigh compartment - function/innervation
extension of knee , flexion ofthigh
femoral nerve
medial thigh compartment - function/innervation
adduction of thigh
obturator n
posterior thigh compartment - function/innervation
flexion of knee, extension of thigh
sciatic nerve
what fibers transmit pain from the synovium
unmyelinated C fibers (nociceptive)
induced by prostaglandin E2
ACL - O/I
from anterior part of intercondylar area of tibia to the lateral surface of medial condyle of femur
when is the ACL taut
taut when leg is extended
What does the ACL prevent
prevents posterior displacement of femur and anterior displacement of tibia
anterior drawer sign
pull the tibia forward when the knee is flexed
it should not displace on the femur (it will if ACL is torn)
PCL O/I
from posterior part of intercondylar area of tibia to the lateral surface of medial condyle of femur
when is PCL taut
taut when leg is flexed
what does the PCL prevent?
prevents the femur from sliding anteriorly on the tibia
posterior drawer sign
push the tibia inward while the knee is flexed
it should not displace on femur- if it does PCL is torn
which part of the menisci is thicker?
external margin (internal margin is thinner and not attached to joint capsule)
what jones the menisci of the knee together?
transverse ligament of the knee
medial meniscus attachment to PCL
posterior horn of the medial meniscus
lateral meniscus attachment to PCL
posterior meniscofemoral ligament
unhappy triad odonaheu
medial meniscus + ACL + MCL
lateral blow to knee while foot is flexed on the ground
unhappy triad (modern)
lateral meniscus + ACL + MCL