Anterior/ Medial Thigh Flashcards
(27 cards)
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
