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Human Locomotor Systems > Lecture 9.2 > Flashcards

Lecture 9.2 Flashcards

1
Q

Lumbar plexus are contributed to by ventral rami of

A

T12 + L1-4

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2
Q

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

A

Psoas major

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3
Q

T12 and L1 go on to supply the ..

A

anterior abdominal wall

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4
Q

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

A

lower limb

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5
Q

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

A

ilioinguinal and iliohypogastric nerves (L1)

Lateral cutaneous nerve of thigh (L2,3)

Femoral nerve L,2,3,4

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6
Q

The one anterior branch from Psoas major is

A

Genitofemoral nerve (L1,2)

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7
Q

The one medial branch from Psoas major is

A

obturator nerve (L2,3,4)

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8
Q

True or false

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

A

true

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9
Q

IlioHypogastric nerve is ___ than ilioInguinal nerve

A

higher (in alphabet as well)

going to anterior abdominal wall- above quadratus lumborum

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10
Q

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

A

inguinal ligament

Then runs down the lateral thigh

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11
Q

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

A

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

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12
Q

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

A

lowest

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13
Q

The femoral nerve passes under what going into the thigh

A

inguinal ligament

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14
Q

The Genitofemoral nerve branches into the .

A

genital branch

femoral branch - continues under the inguinal ligament

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15
Q

Obturator nerve is for the _____ muscles

A

adductor

derived from flexor musculature - therefore has anterior fibres

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16
Q

the Obturator nerve enters the addctor compartment through the ______ ___

A

obturator canal

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17
Q

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

A

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

sacral plexus

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18
Q

The femoral nerve is motor to

A

Quads
Sartorius
Pectineus

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19
Q

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

A

distal to the inguinal ligament

motor, sensory and articular

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20
Q

The femoral nerve is sensory to the

A

anteromedial thigh and medial side of knee leg and anke

Anterior cutaneous branches

Saphenous nerve

Also braches to the joints they pass

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21
Q

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

A

Medial and intermediate cutaneous nerves of thigh

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22
Q

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

A

the saphenous nerve

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23
Q

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

A

two nerve supplies

24
Q

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

A

into anterior and posterior branches

25
Q

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

A

obturator nerve

26
Q

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

A

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

27
Q

The sciatic nerve contains anterior and posterior fibres of …

A

L4-5, S1-3

28
Q

The sciatic nerve

emerges _____ piriformis

______ to hip joint

Passes ___ biceps femoris

A

emerges beneath piriformis

posteriorto hip joint

Passes under biceps femoris

29
Q

The sciatic nerve divides at the apex of the _______ ____

A

popliteal fossa (most commonly)

30
Q

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

A

hamstring

31
Q

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

A

common fibular component

32
Q

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

A

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

33
Q

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

A

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

34
Q

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

A

S4 is special - all about the pelvic floor and perineum

not in the tibial and common fibula nerve

35
Q

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

A

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
36
Q

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

A

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

37
Q

Tibial nerve is sensory to…

A

posterolateral leg

lateral side of foot

sole of foot

38
Q

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

A

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

39
Q

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

A

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

40
Q

true or False

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

A

False

does not contain S3

  • L4,5 S1,2
41
Q

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

A

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

42
Q

The Common fibular nerve winds around the neck of the _____

and sinks in to _____ ____

A

fibula

and sinks in to fiblaris longus

43
Q

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

A

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

44
Q

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

A

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

45
Q

The common fibular nerve itself has no _____ branches

A

no motor banches

46
Q

The common fibular nerve emerges at the proximal fibula next to

A

tendon of biceps

47
Q

Foot drop is associated with laceration of what nerve?

A

common fibula nerve

deep fibula nerve does anterior compartment

48
Q

What is special about fibularis longus?

A

It is where common fibula n. splits

49
Q

Large muscles in the gluteal region are supplied by the …

A

superior and inferior gluteal nerves

50
Q

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

A

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

51
Q

The femoral nerve innervates skin on the …

A

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

52
Q

True or False

The obtrator doesn’t innervate skin

A

False

small area medially just above knee

53
Q

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

A

via the sural branch

sole of foot v

54
Q

The lateral cutaneous nerve of thigh comes from the _____ plexus

A

lumbar plexus

lateral-lumbar

55
Q

The posterior cutaneous nerve of thigh comes from the _____ plexus

A

sacral plexus

Human Locomotor Systems (30 decks)

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