Lecture 9.2

Question 1

Lumbar plexus are contributed to by ventral rami of

Answer 1

T12 + L1-4

Question 2

The plexus of ventral rami L1-4 occur with _____ major

Answer 2

Psoas major

Question 3

T12 and L1 go on to supply the ..

Answer 3

anterior abdominal wall

Question 4

L2/3/4 go on to supply the nerve of the ____ -___

Answer 4

lower limb

Question 5

From the lateral border of psoas major, 4 branches originate, what are they?

Answer 5

ilioinguinal and iliohypogastric nerves (L1)

Lateral cutaneous nerve of thigh (L2,3)

Femoral nerve L,2,3,4

Question 6

The one anterior branch from Psoas major is

Answer 6

Genitofemoral nerve (L1,2)

Question 7

The one medial branch from Psoas major is

Answer 7

obturator nerve (L2,3,4)

Question 8

True or false

Psoas major attaches to the vertebral bodies (transverse process) and the vertebral discs

Answer 8

true

Question 9

IlioHypogastric nerve is ___ than ilioInguinal nerve

Answer 9

higher (in alphabet as well)

going to anterior abdominal wall- above quadratus lumborum

Question 10

The lateral femoral cuntaneous nerve of thigh tucks under the ____ _____ immediately adjacent to its attachment to ASIS

Answer 10

inguinal ligament

Then runs down the lateral thigh

Question 11

Pins and Needles in pregnancy down the lateral side of the thigh can be caused by

Answer 11

The lateral cutanous nerve of thigh being trapped against the ASIS and the inguinal ligament

Question 12

The femoral nerve is the ____ of the 4 branches from psoas

Answer 12

lowest

Question 13

The femoral nerve passes under what going into the thigh

Answer 13

inguinal ligament

Question 14

The Genitofemoral nerve branches into the .

Answer 14

genital branch

femoral branch - continues under the inguinal ligament

Question 15

Obturator nerve is for the _____ muscles

Answer 15

adductor

derived from flexor musculature - therefore has anterior fibres

Question 16

the Obturator nerve enters the addctor compartment through the ______ ___

Answer 16

obturator canal

Question 17

The lumbosacral truck (leftover branches from L4,5) joints S1-4 on ______ (muscle) to form the ____ ___

Answer 17

The lumbosacral truck (leftover branches from L4,5) joints S1-4 on piriformus to form the

sacral plexus

Question 18

The femoral nerve is motor to

Answer 18

Quads
Sartorius
Pectineus

Question 19

The femoral nerve divides into its terminal branches just ____ to the ____ ______

Answer 19

distal to the inguinal ligament

motor, sensory and articular

Question 20

The femoral nerve is sensory to the

Answer 20

anteromedial thigh and medial side of knee leg and anke

Anterior cutaneous branches

Saphenous nerve

Also braches to the joints they pass

Question 21

What nerves come off the femoral nerve to supply skin on thigh (on medial side)

Answer 21

Medial and intermediate cutaneous nerves of thigh

Question 22

What nerves come off the femoral nerve to supply skin on the medial side of the leg and foot?

Answer 22

the saphenous nerve

Question 23

the pectineus has two actions and therefore ____ _____ ______ (same as adductor magnus)

Answer 23

two nerve supplies

Question 24

once the obturator nerve is in the adductor compartment it splits…

Answer 24

into anterior and posterior branches

Question 25

The skin of the medial side of the thigh, just above the knee is supplied by what nerve?

Answer 25

obturator nerve

Question 26

Compressions of the obturator nerve (i.e from ovary) can be reffered to the ...

Answer 26

The skin of the medial side of the thigh, just above the knee

Question 27

The sciatic nerve contains anterior and posterior fibres of ...

Answer 27

L4-5, S1-3

Question 28

The sciatic nerve emerges _____ piriformis ______ to hip joint Passes ___ biceps femoris

Answer 28

emerges beneath piriformis posteriorto hip joint Passes under biceps femoris

Question 29

The sciatic nerve divides at the apex of the _______ ____

Answer 29

popliteal fossa (most commonly)

Question 30

Before it divides, the sciatic nerve supplies ONLY the ______ muscles

Answer 30

hamstring

Question 31

The hamstring are supplied by the tibial component of Sciatic EXCEPT for short head of Biceps femoris which is by the ______ _______ component

Answer 31

common fibular component

Question 32

The tibial nerve is the nerve of the ____ compartment of the leg and the ____ of the foot

Answer 32

The tibial nerve is the nerve of the posterior compartment of the leg and the sole of the foot

Question 33

The tibial nerve is in _____ muscle territory so takes _____ division fibres of the ventral rami

Answer 33

The tibial nerve is in flexor muscle territory so takes anterior division fibres of the ventral rami

Question 34

S4 is special - it's all about the pelvic ___ and _______

Answer 34

S4 is special - all about the pelvic floor and perineum | not in the tibial and common fibula nerve

Question 35

Tibial nerve is the "____" of Tom, Dick & Very Naughty Harr

Answer 35

Structures passing under the flexor retinaculum of the foot ``` Tom - Tibialis Posterior Dick - Flexor digitorum longus And -Posterior tibial artery Very -Posterior tibial vein Naughty - Tibial Nerve Harry -Flexor hallicus longus ```

Question 36

Tibial nerve is _____to muscles of the posterior leg and sole of foot

Answer 36

Tibial nerve is motor to muscles of the posterior leg and sole of foot

Question 37

Tibial nerve is sensory to...

Answer 37

posterolateral leg lateral side of foot sole of foot

Question 38

The sural nerve can be seen as a branch from the tibial nerve, but gets a branch from the ______ _____ nerve as well

Answer 38

The sural nerve can be seen as a branch from the tibial nerve, but gets a branch from the common fibula nerve as well

Question 39

The sural nerve is sensory to the ______ leg and _____ side of foot

Answer 39

The sural nerve is sensory to the posterolateral leg and lateral side of foot

Question 40

true or False The common fibular nerve contains L4,5 S1-3 posterior divisions

Answer 40

False does not contain S3 - L4,5 S1,2

Question 41

The common fibular nerve is adjacent and ____ to the biceps femoris (most lateral structure look at back of knee)

Answer 41

The common fibular nerve is adjacent and medial to the biceps femoris (most lateral structure look at back of knee)

Question 42

The Common fibular nerve winds around the neck of the _____ and sinks in to _____ ____

Answer 42

fibula and sinks in to fiblaris longus

Question 43

The deep fibuar nerve is motor to the ____ compartment of leg and sensory to ....

Answer 43

The deep fibuar nerve is motor to the anterior compartment of leg and sensroy to 1st toe cleft

Question 44

Superficial fibular nerve is motor to ______ compartment of leg and sensory to lateral leg and dorsum of foot

Answer 44

Superficial fibular nerve is motor to lateral compartment of leg and sensory to _____ leg and _____of foot Kind of like musculo-cutaneous - gets its motor innveration done quickly (fibuaris longus & brevis) then goes to cutaneous innervation

Question 45

The common fibular nerve itself has no _____ branches

Answer 45

no motor banches

Question 46

The common fibular nerve emerges at the proximal fibula next to

Answer 46

tendon of biceps

Question 47

Foot drop is associated with laceration of what nerve?

Answer 47

common fibula nerve | deep fibula nerve does anterior compartment

Question 48

What is special about fibularis longus?

Answer 48

It is where common fibula n. splits

Question 49

Large muscles in the gluteal region are supplied by the ...

Answer 49

superior and inferior gluteal nerves

Question 50

Posterior compartment f thigh and leg and sole of foot are supplied by ___ part of sciatic nerve (except....._

Answer 50

tibial part of sciatic nerve (except short head of biceps)

Question 51

The femoral nerve innervates skin on the ...

Answer 51

anterior and medial thigh and medial side of leg and foot (via saphenous nerve)

Question 52

True or False The obtrator doesn't innervate skin

Answer 52

False small area medially just above knee

Question 53

The tibial part of the sciatic nerve innervates: The posterior leg Lateral side of ankle and foot via the ____ branch and Sole of foot via the ____ branch

Answer 53

via the sural branch sole of foot v

Question 54

The lateral cutaneous nerve of thigh comes from the _____ plexus

Answer 54

lumbar plexus lateral-lumbar

Question 55

The posterior cutaneous nerve of thigh comes from the _____ plexus

Answer 55

sacral plexus