Anterior/ Medial Thigh Flashcards
Lumbar Plexus has how many nerve roots
4 roots - L1, L2, L3, L4
L1-L2 combine to give what three cutaneous nerves
iliohypogastric
iliolinguinal
genitofemoral
L2, L3, L4 give rise to what 4 nerves
femoral nerve
obturator nerve
lateral femoral cutaneous nerve
branches of the psoas major muscle
the femoral nerve enter the thigh underneath the ____ ligament
inguinal
obturator nerve enters the thigh through
the obturator foreamen
Femoral nerve has which 2 cutaneous branches
anterior femoral cutaneous
saphenous nerve
(infrapatella and medial crural branches go under the knee cap down the inner shin)
saphenous vein follows the ____ nerve up the ____ side of the leg
saphenous, medial
Illiopsoas consists of what 2 muscles
iliacus and psoas major
Illiacus
Origin: Iliac crest and fossa, sacrum
Insertion: lesser trochanter
Innervated: femoral nerve
Action: Hip Flexion
Psoas Major
Insertion: T12-L5 lumbar vertebrae
Insertion: lesser trochanter
Innervated: femoral nerve
Action: Hip Flexion
Sartorius
Origin: ASIS
Insertion: superior medial tibia posteriorly - pes anserene
Innervated: Femoral Nerve
Action: hip flexion, abduction. external rotation
Tensor Fascia Lata
Origin: ASIS and lateral aspect of the iliac crest
Insertion: Iliotibial band (fascia that inserts onto Gerdy’s Tubercle right near lateral femoral condyle)
Innervated: Superior gluteal nerve
Action: Hip flexion, abduction, internal rotation
Rectus femoris
Origin: AIIS
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: Flex the hip and extend the knee
Vastus Lateralis
Origin: Lateral lip of the linea aspera
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee
Vastus Medialis
Origin: Medial lip of the linea aspera
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee
Vastus Intermedius
Origin: Anterior lateral shaft of the femur
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee
Pectineus
Origin: body of the pubic bone
Insertion: pectineal line
Innervated: Femoral nerve or obturator nerve
Action: Hip adduction, hip flexion
Adductor Longus
Origin: Superior pubic ramus
Insertion: middle aspect of the linea aspera
Innervated: Obturator nerve
Action: Adduction, can flex or extend the hip
Adductor brevis
Origin: Inferior pubic ramus
Insertion: pectineal line and proximal femur
Innervated: obturator nerve
function: adduction
Adductor Magnus
Origin: Inferior pubic ramus and ishial tuberosity
Insertion: Adductor tubercle
Innervated: Obturator and Sciatic nerve
Action: Adduction, extend the hip
Gracilis
Origin: Inferior pubic ramus
Insertion: superior medial aspect of the tibia - pes anserene
Innervated: Obturator nerve
Action: Extends the knee assists with hip flexion
Obturator Externus
Origin: Obturator Foreamen
Insertion: Trochanter fossa - just medial to the greater trochanter
Innervated: Obturator Nerve
Function: Hip External Rotation
Borders and Contents of Femoral Triangle
Base: Inguinal Ligament
Lateral Border: Saratorius
Medial Border: Adductor Longus
Floor: lateral- illiopsoas; medial- pectineus
Roof: tensor fascia lata
Contents: femoral vein, femoral artery, femoral nerve (medial to lateral)
Abdominal aorta becomes what artery
common iliac
Common iliac burificates around L2 into what two arteries
external iliac artery
internal iliac artery
External Iliac runs under the ___ ligament and becomes ___ artery
inguinal; femoral
Femoral artery enters femoral traingle and gives off the largest branch the ____ artery
profunda
