Lumbosacral Plexus

Question 1

what is nerve plexus

Answer 1

branching network of intersecting nerves - made up of anterior (ventral rami) of spinal nerves

Question 2

autonomic

Answer 2

involuntary actions - heart rate, digestion

Question 3

somatic

Answer 3

voluntary actions - muscle contractions, skin

Question 4

iliohypogastric nerve (plexus)

Answer 4

L1

Question 5

ilioinguinal nerve (plexus)

Answer 5

L1

Question 6

genito femoral nerve (plexus)

Answer 6

L1-L2

Question 7

Lateral Cutaneous Nerve (plexus)

Answer 7

L2-L3

Question 8

Obturator Nerve (plexus)

Answer 8

L2-L4

Question 9

Femoral Nerve (plexus)

Answer 9

L2-L4

Question 10

Lumbar Plexus

Answer 10

iliohypogastric n.
ilioinguinal n.
genito fermoral n.
lateral cutaneous n.
Obturator n.
Femoral n.

Question 11

Sacral Plexus

Answer 11

Superior gluteal n.
Inferior gluteal n.
Posterior cutaneous n.
Sciatic n.
Tibial n.
Common fibular n.
Pudendal n.

Question 12

superior gluteal nerve (plexus)

Answer 12

L4 - S1

Question 13

inferior gluteal nerve (plexus)

Answer 13

L5-S2

Question 14

Posterior cutaneous nerve (plexus)

Answer 14

S1-S3

Question 15

Sciatic nerve (plexus)

Answer 15

L4-S3

Question 16

Tibial nerve (plexus)

Answer 16

L4 - S3

Question 17

Common fibular nerve (plexus)

Answer 17

L4-S2

Question 18

Pudendal nerve (plexus)

Answer 18

S2-S4

Question 19

What motor supply to medial thigh muscles ?

Answer 19

Obturator nerver (L2-L4)

Question 20

What motor supply to anterior thigh muscles?

Answer 20

Femoral Nerve (L2-L4)

Question 21

True or False: Females are at greater risk for IPBSN damage during hamstring tendon graft harvest?

Answer 21

True

Question 22

Infrapatellar branch of the saphenous nerve

Answer 22

IPBSN

Question 23

Lumbosacral trunk

Answer 23

L5 minaly with same contribution from L4
travels along Ala of sacrum
most fibers contribute to common fibular division of sciatic nerve

Question 24

Most fibers contribute to this during the sciatic nerve split

Answer 24

common fibular division

Question 25

fascia lata

Answer 25

deep fascia of the thigh

Question 25

thigh

Answer 25

- specialized for posture and locomotion

Question 26

compartment

Answer 26

connect to the intermuscualr septa (mostly collagen) Elastin Fibers/no fat

Question 27

Coxa valga

Answer 27

greater than 139degree

Question 28

coxa vara

Answer 28

less than 115degree

Question 29

oblique angle of the femur put _____ on the femoral neck

Answer 29

strain

Question 30

true or false: fracture of the femoral neck are less common in elderly individuals

Answer 30

false (they are more common)

Question 31

Anterior Compartment

Answer 31

-Hip Flexors - Knee Extensors - innervated by Femoral Nerve - blood: femoral artery, deep femoral artery and lateral circumflex artery

Question 32

Anterior compartment muscles

Answer 32

rectus femoris sartorius V. lateralis V. medialis V. intermedius

Question 33

sartorius

Answer 33

O: ASIS I: Medial proximal tibia (pes anserinus) Inn: Femoral nerve Blood: Deep femoral artery, lateral femoral circumflex artery Actions: hip flexion, Abd, ER, knee flexion/IR

Question 34

Iliacus

Answer 34

O: iliac fossa I: lesser trochanter of the femur Inn: femoral nerve blood: iliolumbar artery actions: hip flexion, ER, Unilateral -later flexion of trunk: Bilateral - raise trunk from supine position

Question 35

Psoas major

Answer 35

O: lateral surfaces of vertebrae T12-L4 and costal facets of the vertebrae L1-L5 I:lesser trochanter of the femur Inn: direct branches of lumbar plexus (L1-L3) Actions: Hip flexion, ER; unilateral - lateral flexion of trunk - raise trunk from supine position

Question 36

what makes up the femoral triangle

Answer 36

SIA Sartorius Inguinal ligament Adductor long

Question 37

what is your floor for the femoral triangle

Answer 37

pectinous illiopsoas muscles

Question 38

What are 4 options for a coronary artery bypass graft?

Answer 38

internal thoracic arter radial artery gastroepiploic artery Great saphenous vein

Question 39

great saphenous starts where? where does it empty to? ascends on ___ leg and thigh

Answer 39

dorms of the foot femoral vein medial

Question 40

what ligament holds down structures passing anterior to the hip joint during flexion - ASIS to pubic tubercle

Answer 40

inguinal ligament

Question 41

this nerve has a relation with the retroinguinal space

Answer 41

femoral nerve

Question 42

macular compartment consist of

Answer 42

iliopsoas muscle federal nerve

Question 43

the vascular compartment consist (vascular lacuna)

Answer 43

femoral artery and vein lymphatics genitofemoral nerve (femoral branch)

Question 44

what is the femoral sheath?

Answer 44

continuation of the transversalis and iliopsoas fascia allows gliding during movement of the thigh

Question 45

What is the femoral canal ?

Answer 45

medial compartment of the femoral sheath allows expansion of femoral vein site of hernias

Question 46

femoral hernia usually occurs due to?

Answer 46

weak point of the abdominal wall

Question 47

what happens if the hernia passes through saphenous opening?

Answer 47

It can enlarge

Question 48

medial compartment

Answer 48

hipp adductors stabilize the pelvis in Coronal/sagittal planes INN: obturator nerve Blood: DFA, LFCA, OA

Question 49

Medial compartment consist of?

Answer 49

Pectineus Add. Longus Add. Brevis Add. Magnus Gracilis Obturator Externus

Question 50

what goes through Adductor canal

Answer 50

femoral artery femoral vein saphenous nerve

Question 51

what goes through adductor hiatus

Answer 51

Femoral artery Femoral Vein

Question 52

anterior branch

Answer 52

longus brevis gracilis pectineus

Question 53

posterior branch

Answer 53

Magnus (adductor and hamstring portion)

Question 54

groin injury

Answer 54

strain/sprain /stretching of the proximal attachments of the medial thigh adductors if tearing occurs - it is typically at the proximal attachment of the muscle

Question 55

strains of adductor longgus = riders strain

Answer 55

can have ossification of the tendons due to active adduction of thighs to keep form falling off the horse