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Anatomy > Lower Limb > Flashcards

Lower Limb Flashcards

1
Q

Lumbar plexus formed by

A

Ventral Rami of L2 though S3

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2
Q

What are the major nerves of the Lumbosacral plexus

A
  • Femoral N: Posterior division of L2-L4
  • Obturator N: Anterior division of L2-L4
  • Tibial N: Anterior division of L4-S3
  • Common fibular N: Posterior division of L4-S2
  • Superior gluteal N: Posterior division of L4-S1
  • Inferior gluteal N: Posterior division of L5-S2
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3
Q

Sciatic N consists of

A

Tibial and common fibular N

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4
Q

Femoral N muscles and action

A

Anterior compartment of thigh:

  • Extend knee
  • Flex hip
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5
Q

Obturator N muscles and action

A

Medial compartment of thigh

  • Adduct thigh
  • Medially rotate thigh
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6
Q

Tibial N muscles and action

A

Posterior compartment of thigh:

  • Flex knee
  • Extend thigh

Posterior compartment of leg:

  • Plantar flex foot (S1-S2)
  • Flex digits
  • Inversion
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7
Q

Common fibular N muscles and action

A

Short head of bicept femoris

Flex knee

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8
Q

Superficial fibular N muscles and action

A

Lateral compartment of leg

Eversion

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9
Q

Deep fibular N muscles and action

A

Anterior compartment of leg:

  • Dorsiflex foot (L4-5)
  • Extend digits
  • Inversion
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10
Q

Anterior compartment of thigh muscles

A

Quadriceps femoris

Sartorius

Pectineus

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11
Q

Medial compartment of thigh muscles

A

Gracilis

Adductor longus

Adductor brevis

Anterior portion of adductor magnus

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12
Q

Posterior compartment of thigh muscles

A

Semimembranosus

Semitendinosus

Long head of bicept femoris

Posterior portion of adductor magnus

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13
Q

Posterior compartment of leg muscles

A

Gastrocnemius

Soleus

Flexor digitorum longus

Flexor hallucis longus

Tibialis posterior

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14
Q

Lateral compartment of leg muscles

A

Fibularis longus

Fibularis brevis

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15
Q

Anterior compartment of leg muscles

A

Tibialis anterior

Extensor hallucis

Extensor digitorum

Fibularis tertius

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16
Q

Superior gluteal N muscles and action

A

Gluteus medius, Gluteus minimus, Tensor fasciae latae:

  • Stabilize pelvis
  • Abduct hip
17
Q

Most frequently damaged N of lower limb

A

Common fibular N because it crosses the lateral aspect of the knee at the neck of the fibula

18
Q

Damage to common fibular N presents with

A

Loss of dorsiflexion of ankle (foot drop)

Loss of eversion

Sensory loss on the lateral surface of the leg and the dorsum of the foot

19
Q

Piriformis syndrome

A

When Piriformis muscle compresses Common Fibular N leading to motor and sensory loss to the lateral and anterior compartments of the leg

20
Q

Posterior hip dislocation damages

A

Sciatic N

21
Q

Deep fibular N Sensory loss limited to

A

Skin of the first web space between the great and second toes

22
Q

Lateral leg and dorsum of the foot sensory supply

A

Superficial fibular N.

23
Q

Sole of the foot sensory supplied by

A

Lateral and medial plantar branches of the Tibial N

24
Q

Sensory supply to the medial leg and medial foot

A

Saphenous N.

25
Q

What artery supplies knee joint

A

Popliteal A

26
Q

Femoral triangle is bounded by

A

Inguinal ligament

Sartorius

Adductor longus

27
Q

Femoral sheath contains

A

Femaoral Artery and vein

28
Q

Hip joint is reinforced by

A

Iliofemoral ligament

ischiofemoral ligament

pubofemoral ligament

29
Q

MCL is

A

Tibial

30
Q

LCL is

A

Fibular

31
Q

ACL

A

attaches to the anterior aspect of the tibia and courses superiorly, posteriorly and laterally to attach to the lateral condyle of the femus

32
Q

Lateral (colateral) ligaments of ankle include

A

Posterior talofibular ligament

Calcaneofibular ligament

Anterior talofibular ligament

33
Q

Medial (Deltoid) ligament of ankle

A

Posterior tibiotalar part

Tibiocalcaneal part

Tibionavicular part

Anterior tibiotalar part

34
Q

What ankle ligament is most damaged

A

Anterior talofibular ligament

Anatomy (25 decks)

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