Anatomy: Femoral Triangle Flashcards
what is the floor of the femoral triangle bordered by
the iliopsoas laterally and the pectineus medially
name the borders of the femoral triangle
(lower limb cards)
what lymph nodes does the femoral canal contain
deep inguinal
what does the femoral sheath not contain
femoral nerve
what fascia is the femoral sheath formed from
inferior prolongation of transversalis and iliopsoas fascia
what are the nerve roots of the femoral nerve
L2 - L4
what does the saphenous nerve supply
sensory - fascia and skin of the anteromedial aspects of knee and leg and medial aspect of the foot
what vein does the saphenous nerve accompany at the medial aspect of the foot
great saphenous vein
what 2 muscles does the saphenous nerve pass between when leaving the adductor canal
sartorius and gracilis
what is the saphenous nerve a branch of
- femoral nerve
- supplies sensation to the anteromedial, medial and posteromedial surface of the leg.
what causes a femoral hernia
inc intra abdominal pressure resulting in peritoneum hernaiting into canal
where is the femoral canal in the femoral sheath
what is in the femoral canal
most medial part of femoral sheath
deep inguinal nodes and adipose tissue
where do the deep inguinal nodes run in relation to the femoral vein in the femoral canal
medial
what do the medial and lateral circumflex arteries arise from
profunda femeris artery (deep artery of thigh)
what does teh profunda femoris artery arise from
femoral artery
how do the medial and lateral circumflex femoral artery supply the majority of blood to the head of the femur
through retinacular branches
where is the femoral pulse found
midway between the ASIS and pubic symphysis
what is the femoral pulse used for
locate the femoral vein and nerve
what does the inguinal ligament run between
ASIS and pubic tubercule
where is the inguinal canal and what does it contain
medial half of inguinal ligament
spermatic cord (male) or round ligament (female)
where do the femoral vessels, nerve and the iliopsoas muscle pass in relation to the inguinal ligament
posterior in the retroinguinal space
what is the deep fascia of the thigh called
fascia lata
proximal and distal attachments of the iliopsoas
proximal: iliac fossa (iliacus) and lumbar transverse processes/IV discs
distal: lesser trochanter of femur
what is the nerve supply of the iliopsoas
anterior rami of the lumbar spinal nerves
proximal and distal attachments of the sartorius
proximal : ASIS
distal: medial surface of proximal tibia (via pes anserinus)
name the 4 components of the quadriceps femoris
rectus femoris
vastus lateralis
vastus intermedius
vastus medius
proximal and distal attachments of the rectus femoris
proximal: ASIS
distal: patella (via quadriceps tendon) then tibial tuberosity (vita patellar tendon/ligament)
proximal and distal attachments of the vastus lateralis, intermedius and medius
proximal: shaft of femur
distal: patella (via quadriceps tendon) then tibial tuberosity (vita patellar tendon/ligament)
knee jerk reflex
strike the patellar ligament producing a contraction of the quadriceps and slight extension of the knee joint
femoral nerve: L2-L4
where do the adductor brevis and longus lie in relation to the adductor magnus
anterior
what are the proximal and distal attachments of the adductor longus
proximal: pubis
distal: linea aspera of femur
what are the proximal and distal attachments of the adductor brevis
proximal: pubic
distal: linea aspera
what are the proximal and distal attachments of the adductor magnus
proximal: inf ramus, ramus of ischum
hamstring part: ischial tuberosity
hamstring part distal: adductor tubercule of femur
what nerve is the anterior cutaneous nerve of the thigh a branch of
femoral nerve
what nerve is the lateral cutaenous branch of the thigh a branch of
lumbosacral plexus
where does all lymph from the lower limb ultimately drain to
external iliac nodes
where does lymph from the great saphenous vein drain to (superficial)
superficial inguinal nodes and then ext iliac nodes
where does lymph from the small saphenous vein drain to
popliteal lymph nodes
deep inguinal nodes
ext iliac nodes
when does the ext iliac artery become the femoral artery
when it crosses under the inguinal ligament and enters the femoral triangle
what branches off the femoral artery in the femoral triangle
profunda femoris artery - lateral and medial circumflex femoral arteries
what does the femoral artery do after exiting the femoral triangle
continue down anterior surface of the thigh in the adductor canal
where does the femoral artery exit the adductor canal
at the adductor hiatus(opening in the adductor magnus) and enters posterior compartment of the thigh as the popliteal artery
what does the adductor canal contain
femoral artery and vein and saphenous nerve
what nerve does the saphenous nerve branch from
femoral nerve - in femoral triangle
