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? Areas of distribution and
? Spinal segments of origin
Dermatomes of lower limb
Overview of Body Dermatomes
1. Dorsal Rami of L1,L2,L3
2. Dorsal Rami of S1,S2,S3
3. Lateral Cutaneous Branch of Subcostal Nerve(T12)
4. Lateral Cutaneous Branch of Iliohypogastric Nerve(L1)
6. Posterior Cutaneous Nerve of Thigh(VD-S2,S3 and DD-S1,S2)
7. Perforating Cutaneous Nerve (DD-S2,S3)
8. Saphenous Nerve(DD-L2-4)
9. Lateral Cutaneous Nerve of Calf(DD-L2,L3)
11. Superficial and Deep Peroneal Nerve
12. Calcaneal Branch of Tibial Nerve(VD-S1,S2)
Innervation
Plexuses of the Lower Limb/Lumbosacral plexus
Lumbar Plexus
Sacral Plexus
Cutaneous Innervation of Lower Limb
MCQs
innervation of anterior surface of knee joint. What do you think will be
the most appropriate answer of this question?
b. L3
c. L4
d. L5
Question :- Meralgia paraesthetica is condition which produces an
area of impaired sensation, often with pain and paraesthesia on
the anterolateral aspect of the thigh. Injury to which of the
a. Medial cutaneous nerve of thigh
b.Lateral cutaneous nerve of thigh
c. Posterior cutaneous nerve of thigh
d.Intermediate cutaneous nerve of thigh
? Areas of distribution and
? Spinal segments of origin
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? Clinical CorrelatesDermatomes of lower limb
Overview of Body Dermatomes
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Cutaneous Nerves of Lower Limb1. Dorsal Rami of L1,L2,L3
2. Dorsal Rami of S1,S2,S3
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3. Lateral Cutaneous Branch of Subcostal Nerve(T12)
4. Lateral Cutaneous Branch of Iliohypogastric Nerve(L1)
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5. Lateral, Medial and Intermediate Cutaneous Nerve of Thigh(DD-L2,L3,L4)6. Posterior Cutaneous Nerve of Thigh(VD-S2,S3 and DD-S1,S2)
7. Perforating Cutaneous Nerve (DD-S2,S3)
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8. Saphenous Nerve(DD-L2-4)
9. Lateral Cutaneous Nerve of Calf(DD-L2,L3)
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10. Sural Nerve(VD-S1,S2)11. Superficial and Deep Peroneal Nerve
12. Calcaneal Branch of Tibial Nerve(VD-S1,S2)
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Innervation
Plexuses of the Lower Limb/Lumbosacral plexus
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Lumbar Plexus
Sacral Plexus
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Cutaneous Innervation of Lower Limb
MCQs
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Question :- An examiner has asked the student about the dermatomalinnervation of anterior surface of knee joint. What do you think will be
the most appropriate answer of this question?
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a. L2b. L3
c. L4
d. L5
Question :- Meralgia paraesthetica is condition which produces an
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area of impaired sensation, often with pain and paraesthesia on
the anterolateral aspect of the thigh. Injury to which of the
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fol owing nerve is responsible for this condition?a. Medial cutaneous nerve of thigh
b.Lateral cutaneous nerve of thigh
c. Posterior cutaneous nerve of thigh
d.Intermediate cutaneous nerve of thigh
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