Nerve Supply & Roots-- Lower Limbs Flashcards

1
Q

Tibial Nerve

  • Nerve Root
  • Motor and Cutaneous supply
A
  • anterior leg
  • L4-S3

Posterior leg muscles:

  • Gastrocnemius, Soleus, Tibialis Posterior,
  • flexor hallucis longus, FHD,
  • Popliteus muscles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Common Peroneal Nerve

nerve root, supply

A

(L4-S2).

  • skin of the anterior lateral thigh
  • the short head of the Biceps Femoris muscle.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Deep Peroneal Nerve

A
  • the patch of skin between toes 1 and 2

The muscles of the anterior leg:
Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorum Longus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This nerve supply sensation to the sole of foot, and the tips of first 3.5 toes (medial)

Name the nerve.
Name the intrinsic foot muscles that this nerve innervates

A

Medial Plantar Nerve

Abductor H.
Flexor DB
Flexor H.
Lumbrical 1 & 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Skin: sole of foot lateral 1.5 toes

Name the nerve and the intrinsic foot muscles that this nerve supply

A

Lateral Plantar Nerve

Adductor H.
Abductor DM
Flexor DM
Lumbricals 3 & 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Trauma on the anterior side of this leg may result in the damage of this nerve.

(eg., Foot drop)

A

Deep Peroneal Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Posterior Cutaneous Nerve of the Thigh

A

Skin = Posterior thigh, Lower buttock to the back of the knee

No motor supply

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Pudental Nerve (S2-S4)

A
S = Perineum 
M = Levator And External Anal and Urethral Sphincters
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Lateral Cutaneous Nerve of the Thigh (L2-L3)

A
S = Anterior Lateral Thigh
M = None
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Femoral Nerve (L2-4)

A
S = Anterior Thigh
M = Sartorius, Quadriceps Muscles, and Pectineus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Obturator Nerve (L2-L4)

A
S = Medial thigh and Hip joint
M = Gracilis, Obturator Externus, Adductor Muscles except the Hamstring part of the Adductor Magnus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Saphenous Nerve (from femoral N)

A
S = medial leg and ankle and knee joint
M = none
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Tibialis Posterior Muscle

Nerves and Nerve root/ branches

A

Receives its supply from the Tibial Nerve, from L4 & L5 branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The tibial nerve supply these 7 muscles

Gastrocnemius
Soleus
Plantaris
Popliteus
Tibilais Posterior
Flexor DL
Flexor HL 

List their nerve roots

A

S1, S2. = Gastrocnemius/ Soleus/ Plantaris/
S2 - S3 = Flexor DL/ Flexor HL
L4 - L5 = Tibilais Posterior
L4, L5, S1 = Popliteus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The anterior compartment of the leg is innervated by which nerve?

A

Deep peroneal nerve of the Common Peroneal Branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which muscle is innervated by just the anterior rami of lumbar nerve root L1, L2, L3?

A

Psoas major/minor

17
Q

Which muscle is innervated by the anterior rami of sacral plexus nerve root S1-S2

A

Piriformis

18
Q

Obturator externus nerve/ nerve roots

A

Obturator Nerve posterior branch (L3-L4)

19
Q

Obturator internus
Superior & Inferior Gemellus
Quadratus Femoris

A

L5, S1 Nerve to Obturator internus

20
Q

Sartorius
Rectus Femoris
Vastus Lateralis, Medialis, Intermedius

A

Femoral nerve L2-L4 for the Quadriceps muscles

Sartorious muscle L2, L3

21
Q

List the muscles of the posterior thigh that receive nerve supply from the Tibial division of the Sciatic branch, L5, S1, S2

One of them receives innervation from the common peroneal nerve.

A

Biceps Femoris LH
Semitendinosus
Semimembranosus
receive their nerve supply from this nerve and these nerve roots.

Biceps short head nerve

22
Q

Pectineus muscle receives nerve supply from this nerve and nerve root

This muscle may also receive a branch from this nerve

A

Which muscle do the Femoral nerve, with nerve root L2-L3 supply?

This muscle may also receive a nerve branch from the Obturator nerve, L2-L3

23
Q

This muscle group of the medial compartment of the thigh.

Two of these muscles receive nerve supply from the obturator nerve (anterior branch) nerve root _____

1 of these muscle receives supply from the obturator posterior branch

A

The adductor group muscles receive their nerve supply from _____, root L3-L4

Adductor Longus
Adductor Brevis = L2 & 3
Adductor Magnus = L4 (adductor part) receives its innervation from this nerve and branch

24
Q

Nerve supply and nerve root of the Gracilis muscle?

A

This muscle is flat and broad, narrow and tapers down.

  • has its origin in the symphysis pubis and arch
  • Inserts into the medial condyle of the tibia
  • Obturator nerve, L2-L3
25
Q

This muscle group in the lateral compartment of the leg receive their nerve supply from the superficial peroneal(fibular) nerve; nerve root ______

A

Peroneus longus and brevis muscle, L5-S2

supplied by which nerve ?

26
Q

These two extensor muscles (brevis) in the foot are innervated by the deep peroneal nerve with nerve roots_____

A

Extensor digitorum brevis
Extensor hallucis brevis muscle
S1-S2

Supplied by which nerve?

27
Q

Nerve supply and root of Adductor Muscle Group?

A

Adductor Magnus:

  • Adductor part: Obturator (posterior branch, L2-L3,L4)
  • Hamstring part: Sciatic (tibial division, L4)

Adductor Brevis and Longus
- Obturator nerve (anterior branch L2,L3,L4)

28
Q

Lateral plantar nerve root S2-S3 supplies these two deep muscles in the foot

A

Plantar Interossei

Dorsal Interossei

29
Q

What are the nerves of the anterior thigh?

Their nerve origin and nerve roots

A

Femoral, Obturator and Lateral Cutaneous Nerve to Thigh

30
Q

Which nerve supply the lateral compartment of the leg?

A

Superficial Fibular Nerve, L5, S1, S2

31
Q

Name the 3 muscles share a common nerve and nerve root. All 3 muscles receive their nerve supply from the Femoral nerve (L2-L3).

Location of these muscles: anterior hip, medial thigh, anterior thigh. Can be recalled by the acronym SIP.

A

Sartorius muscle
Illiacus muscle
Pectinueus muscle

SIP

32
Q

Where do The 6 Deep Lateral Hip Rotators (known by the Acronym POOS-IQ) Receive their nerve supply?

6 muscles with 4 different nerve supply.
Each muscles arises from 2 nerve roots
How many strips of P or OE?

A

Piriformis. Ventral Rami S1 & S2.
Obturator Externus. Obturator posterior, L3 & L4
Nerve to Obturator Internus & Superior Gemellus. L5, S1
Nerve to Quadrates femoris & Inferior Gemellus. L5, S1