Anterior/ Medial Thigh

Question 1

Lumbar Plexus has how many nerve roots

Answer 1

4 roots - L1, L2, L3, L4

Question 2

L1-L2 combine to give what three cutaneous nerves

Answer 2

iliohypogastric
iliolinguinal
genitofemoral

Question 3

L2, L3, L4 give rise to what 4 nerves

Answer 3

femoral nerve
obturator nerve
lateral femoral cutaneous nerve
branches of the psoas major muscle

Question 4

the femoral nerve enter the thigh underneath the ____ ligament

Answer 4

inguinal

Question 5

obturator nerve enters the thigh through

Answer 5

the obturator foreamen

Question 6

Femoral nerve has which 2 cutaneous branches

Answer 6

anterior femoral cutaneous
saphenous nerve
(infrapatella and medial crural branches go under the knee cap down the inner shin)

Question 7

saphenous vein follows the ____ nerve up the ____ side of the leg

Answer 7

saphenous, medial

Question 8

Illiopsoas consists of what 2 muscles

Answer 8

iliacus and psoas major

Question 9

Illiacus

Answer 9

Origin: Iliac crest and fossa, sacrum
Insertion: lesser trochanter
Innervated: femoral nerve
Action: Hip Flexion

Question 10

Psoas Major

Answer 10

Insertion: T12-L5 lumbar vertebrae
Insertion: lesser trochanter
Innervated: femoral nerve
Action: Hip Flexion

Question 11

Sartorius

Answer 11

Origin: ASIS
Insertion: superior medial tibia posteriorly - pes anserene
Innervated: Femoral Nerve
Action: hip flexion, abduction. external rotation

Question 12

Tensor Fascia Lata

Answer 12

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

Question 13

Rectus femoris

Answer 13

Origin: AIIS
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: Flex the hip and extend the knee

Question 14

Vastus Lateralis

Answer 14

Origin: Lateral lip of the linea aspera
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee

Question 15

Vastus Medialis

Answer 15

Origin: Medial lip of the linea aspera
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee

Question 16

Vastus Intermedius

Answer 16

Origin: Anterior lateral shaft of the femur
Insertion: Tibial tuberosity via patella tendon
Innervated: Femoral Nerve
Action: extend the knee

Question 17

Pectineus

Answer 17

Origin: body of the pubic bone
Insertion: pectineal line
Innervated: Femoral nerve or obturator nerve
Action: Hip adduction, hip flexion

Question 18

Adductor Longus

Answer 18

Origin: Superior pubic ramus
Insertion: middle aspect of the linea aspera
Innervated: Obturator nerve
Action: Adduction, can flex or extend the hip

Question 19

Adductor brevis

Answer 19

Origin: Inferior pubic ramus
Insertion: pectineal line and proximal femur
Innervated: obturator nerve
function: adduction

Question 20

Adductor Magnus

Answer 20

Origin: Inferior pubic ramus and ishial tuberosity
Insertion: Adductor tubercle
Innervated: Obturator and Sciatic nerve
Action: Adduction, extend the hip

Question 21

Gracilis

Answer 21

Origin: Inferior pubic ramus
Insertion: superior medial aspect of the tibia - pes anserene
Innervated: Obturator nerve
Action: Extends the knee assists with hip flexion

Question 22

Obturator Externus

Answer 22

Origin: Obturator Foreamen
Insertion: Trochanter fossa - just medial to the greater trochanter
Innervated: Obturator Nerve
Function: Hip External Rotation

Question 23

Borders and Contents of Femoral Triangle

Answer 23

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)

Question 24

Abdominal aorta becomes what artery

Answer 24

common iliac

Question 25

Common iliac burificates around L2 into what two arteries

Answer 25

external iliac artery

internal iliac artery

Question 26

External Iliac runs under the ___ ligament and becomes ___ artery

Answer 26

inguinal; femoral

Question 27

Femoral artery enters femoral traingle and gives off the largest branch the ____ artery

Answer 27

profunda