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2. HLTH 109 > Nerve supply: lower limb > Flashcards

Nerve supply: lower limb Flashcards

1
Q

nerve supply of the lower limb: general

A
  • lumbar plexus
  • sacral plexus

lumbosacral plexus

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2
Q

specific: lumbar plexus

A
  • anterior (ventral) rami of L1-4
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3
Q

specific: sacral plexus

A
  • anterior (ventral) rami of L 4-5 (lumbosacral trunk)

- S1-4

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4
Q

major branches: lumbar plexus (4)

A
  • femoral n (L2-4)
  • saphenous n
  • obturator n (L2-4)
  • lateral cutaneous n of the thigh (L2-3)
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5
Q

major branches: sacral plexus (8)

A
  • superior gluteal n
  • inferior gluteal n
  • n to quadratus femoris
  • n to obturator internus
  • post femoral cutaneous n of the thigh
  • sciatic n
  • tibial n and common peroneal n
  • pudendal n
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6
Q

motor distribution areas: femoral n

A

ant com thigh

- majority of ant com of thigh and leg medially

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7
Q

motor distribution areas: obturator

A

medial com thigh

- inner thigh

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8
Q

sciatic n variations: (3)

A

most common:
- non split inf to piriformis

early split:

  • btw piriformis and inferiorly
  • superior and inferiorly
  • both btw the piriformis
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9
Q

safe injection sites in the buttocks:

A
  • from highest point of iliac crest
  • plane through ischial tuberosity
  • halfway draw line
  • upper lateral quadrant best place
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10
Q

peroneal nerve damage:

A
  • from broken fibula

- drop foot -> affects gait

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11
Q

arterial supply: from descending aorta superficial structures (3)

A

descending aorta - common iliac artery - external iliac a - femoral artery

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12
Q

arterial supply: from descending aorta deeper structures

A

descending aorta - internal iliac a - pelvic/perineal structures/ obturator a, superior and inferior gluteal arteries

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13
Q

arterial supply: from femoral artery anterior side

A

femoral a

  • profunda femoris a
  • popliteal a - ant tibial artery - dorsalis pedis a - tarsal/ arcuate/ 1st dorsal metatarsal a - deep plantar arch
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14
Q

arterial supply: from femoral artery post side

A

femoral artery

  • profundis femoris artery
  • popliteal a - post tibial a - circumflex fibular a/ peroneal (fibular) a - lateral plantar a (- deep plantar arch - digital branch) / medial plantar a (- 4 plantar metatarsal a)
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15
Q

major branches: femoral artery (5)

A
  • profunda femoris
  • superficial epigastric
  • superficial circumflex iliac a
  • superficial external pudendal a
  • deep external pudendal a
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16
Q

major branches: profunda femoris (3)

A
  • perforating branches (4)

- medial and lateral circumflex

17
Q

major branches: obturator a (2)

A
  • anterior branch

- post branch

18
Q

major branches: popliteal artery

A
  • muscular branches
  • genicular a
  • ant tibial a
  • post tibial a
19
Q

major branches: anterior tibial a

A
  • ant medial malleolar a
  • ant lateral malleolar a
  • recurrent branch
  • muscular branches
  • continues as dorsalis pedis a
20
Q

major branches: post tibial artery

A
  • circumflex fibular a
  • fibular (peroneal) a
  • perforating branch
  • medial plantar a
  • lateral plantar a
21
Q

major branches: lateral plantar a

A

continues as deep plantar arch

22
Q

major branches: deep plantar arch

A
  • 4 plantar metatarsal aa
  • 3 perforating branches
  • digital branch
23
Q

major branches: dorsalis pedis artery

A
  • tarsal arteries
  • arcuate a
  • 1st dorsal metatarsal a
24
Q

contents in femoral triangle:

A
  • femoral nerve
  • femoral sheath
  • lymphatics in femoral canal
  • femoral a
  • femoral vein
25
Q

tendons and vessels at ankle:

A
  • flexor digitorum longus tendon
  • tibialis post tendon
  • post tibial a
  • tibial n
  • flexor hallucis longus tendon
26
Q

venous drainage: from dorsal digital vein

A

dorsal digital - dorsal metatarsal - dorsal venous arch - small saphenous (- popliteal v)/ great saphenous (- femoral v) - external iliac - common iliac - vena cava

27
Q

venous drainage: from plantar digital

A

plantar digital - plantar metatarsal - deep plantar venous arch - medial and lateral plantar - post tibial - popliteal - femoral - external iliac - common iliac - inferior vena cava

28
Q

list lymphatic nodes:

A
  • popliteal lymph nodes
  • superficial inguinal lymph nodes
  • deep inguinal lymph nodes
29
Q

areas drained: popliteal

A
  • knee

- parts of leg and foot

30
Q

venous drainage: superficial inguinal

A
  • lower part of anterolateral abdominal wall
  • gluteal region
  • external genitalia
  • perineum
  • all superficial lymphatics of lower limb
31
Q

venous drainage: deep inguinal

A
  • penis
  • clitoris
  • deep lymphatics of lower limb

2. HLTH 109 (29 decks)

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