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HSF - Limbs > Lower Limbs - Nerves and Vessels > Flashcards

Lower Limbs - Nerves and Vessels Flashcards

1
Q

Where do the arteries of the lower limb begin?

A

Junction between hip and thigh

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2
Q

Artery from which lower limb arteries split

A

External iliac artery

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3
Q

Arteries splitting from external iliac artery: 1) 2) 3) 4)

A

1) Femoral 2) Popliteal 3) Anterior tibial 4) Posterior tibial

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4
Q

Main branch of femoral artery

A

Profunda femoris

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5
Q

Superficial veins of lower limb 1) 2) 3)

A

1) Dorsal venous arch 2) Great saphenous 3) Small saphenous

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6
Q

Deep veins of the lower limb 1) 2)

A

1) Venous sinuses in soleus 2) Venae comitantes

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7
Q

Path of lower limb lymph drainage

A

Follows venous vessels

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8
Q

Path of lower limb lymph drainage through lymph nodes

A

Superficial inguinal node –> Deep inguinal node –> Drains through nodes beside aorta to thoracic duct

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9
Q

Major plexus supplying lower limb

A

Lumbosacral plexus

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10
Q

Structure giving rise to lumbosacral plexi

A

Posterior rami

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11
Q

Nerves arising from lumbosacral plexi 1) 2) 3) 4)

A

1) 2 x Gluteal nerves 2) Femoral nerve 3) Obdurator nerve 4) Sciatic nerve

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12
Q

Nerve segments supplying femoral nerve

A

L2m L3, L4

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13
Q

Muscles innervated by femoral nerve

A

Quadriceps

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14
Q

Skin innervated by femoral nerve

A

Medial thigh, medial border of foot

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15
Q

How does the femoral nerve enter the thigh?

A

Passing inferior to inguinal ligament

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16
Q

Spinal segments supplying the obdurator nerve

A

L2, L3, L4

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17
Q

Muscles innervated by obdurator nerve

A

Adductor muscles of thigh

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18
Q

Skin innervated by obdurator nerve

A

Medial thigh, patch not innervated by femoral nerve

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19
Q

Clinical significance of obdurator nerve

A

Conveys referred pain from the ovaries to medial thigh

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20
Q

Which nerve conveys referred pain form the ovaries?

A

Obdurator nerve

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21
Q

How does obdurator nerve enter the thigh?

A

Through the obdurator canal of the hip bone

22
Q

Spinal segments supplying sciatic nerve

A

L4, L5, S1, S2, S3

23
Q

Muscles innervated by sciatic nerve

A

Posterior thigh muscles

24
Q

Structures into which the sciatic nerve splits 1) 2)

A

1) Tibial nerve 2) Common fibular nerve

25
Q

Where does the sciatic nerve split into two major branches?

A

Major popliteal fossa

26
Q

Where do injections into the buttock need to be administered?

A

Upper, outer quadrant

27
Q

Why do injections into the buttock need to be administered to the outer, upper quadrant?

A

So that the sciatic nerve isn’t accidentally pricked

28
Q

Spinal segments supplying tibial nerve

A

T5, S1, S2, S3

29
Q

Where does the tibial nerve originate?

A

Popliteal fossa

30
Q

Muscles innervated by tibial nerve

A

All posterior leg

31
Q

Nerve from which medial and lateral plantar nerves arise from

A

Tibial nerve

32
Q

What does the tibial nerve split into at the ankle?

A

Lateral, medial plantar nerves

33
Q

Where does the tibial nerve split into the medial and lateral plantar nerves?

A

Ankle

34
Q

Tarsal tunnel syndrome

A

Compression of tibial nerve in tarsal tunnel

35
Q

Jogger’s foot

A

Compression of plantar nerves below medial arch

36
Q

What does compression of plantar nerves below plantar arch result in?

A

Jogger’s foot

37
Q

What does compression of tibial nerve in the tarsal tunnel result in?

A

Tarsal tunnel syndrome

38
Q

Spinal segments supplying common fibular nerve

A

L4, L5, S1, S2

39
Q

Where does the common fibular nerve originate?

A

Popliteal fossa

40
Q

Where does the common fibular nerve travel

A

Behind the fibular head, down the lateral compartment of the leg

41
Q

Muscles supplied by common fibular nerve

A

Lateral, anterior muscles of leg

42
Q

How does the common fibular nerve innervate lateral and anterior muscles of leg?

A

Deep, superficial fibular nerves

43
Q

What can anterior compartment syndrome lead to?

A

Compression of the common fibular nerve

44
Q

How can the common fibular nerve be compressed?

A

Anterior compartment syndrome in leg

45
Q

Effects of compressed common fibular nerve

A

Foot drop

46
Q

What can cause foot drop?

A

Compression of common fibular nerve

47
Q

Most common intervertebral disc to prolapse

A

L4,L5 or L5/S1

48
Q

Effects of L4/L5, L5/S1 disc prolapse

A

Irritation of sciatic nerve

49
Q

Clinical symptoms of compression of sciatic nerve

A

1) Plantar flexion, flexion of big toe might be affected 2) Muscle wastage of gastrocnemius, soleus 3) Ankle jerk diminished or absent

50
Q
A
51
Q
A
52
Q
A

HSF - Limbs (9 decks)

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