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Functional Anatomy Year 1 > Nerve supply of muscles/motor supply > Flashcards

Nerve supply of muscles/motor supply Flashcards

1
Q

Where does the tibial nerve arise?

A

Sciatic nerve.

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2
Q

Where does the tibial nerve exit through?

A

Popliteal fossa.

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3
Q

What are the branches of the tibial nerve?

A
  • Sural nerve.
  • Calcaneal nerve.
  • Medial + lateral plantar nerves.
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4
Q

What muscles does the tibial nerve supply?

A
  • Plantaris.
  • Gastrocnemius.
  • Popliteus.
  • Soleus.
  • Tibialis Posterior.
  • Flexor Digitorum Longus.
  • Flexor Hallucis Longus.
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5
Q

What muscles does the medial plantar branch of the tibial nerve supply?

A
  • Flexor digitorium brevis.
  • Abductor hallucis.
  • Flexor hallucis brevis.
  • Lumbrical 1.
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6
Q

What muscles does the lateral plantar branch of the tibial nerve supply?

A
  • Abductor Digiti Minimi.
  • Flexor Digiti Minimi.
  • Quadratus Plantae.
  • Adductor Hallucis.
  • Plantar Interossei.
  • Dorsal Interossei.
  • Lumbrical 2,3,4.
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7
Q

Where does the common fibular nerve arise?

A

Sciatic nerve.

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8
Q

Where does the common fibular nerve exit through?

A

Popliteal fossa.

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9
Q

What are the branches of the common fibula nerve?

A
  • Sural nerve.
  • Lateral sural nerve.
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10
Q

What muscle does the common fibular nerve supply?

A

Short head of bicep femoris.

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11
Q

Where does the sciatic nerve arise from?

A

Sacral plexus.

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12
Q

Where does the sciatic nerve exit through?

A
  • Greater sciatic foramen.
  • Under piriformis.
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13
Q

What muscles does the tibial branch of the sciatic nerve supply?

A
  • Semimembranosus.
  • Semitendinosus.
  • Long head of bicep femoris.
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14
Q

What muscle does the common fibular branch of the sciatic nerve supply?

A

Short head of bicep femoris.

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15
Q

Describe the pathway of the sciatic nerve.

A
  • Travels between lateral rotators + gluteus Maximus.
  • Halfway between the ischial tuberosity + greater trochanter.
  • Continues between the hamstrings + adductor magnus.
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16
Q

What is the sciatic nerve comprised of?

A
  • Tibial nerve.
  • Common fibular nerve.
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17
Q

Where do the tibial and common fibular nerves separate from the sciatic nerve?

A

At the popliteal fossa.

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18
Q

Where does the deep fibular nerve arise from?

A

The common fibular nerve.

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19
Q

What does the deep fibular nerve exit through?

A

Deep to fibularis longus.

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20
Q

What muscles does the deep fibular nerve supply?

A
  • Tibialis Anterior.
  • Extensor Hallucis Longus.
  • Extensor Digitorum Longus.
  • Extensor Hallucis Brevis.
  • Extensor Digitorum Brevis.
  • Fibularis Tertius.
21
Q

Describe the pathway of the deep fibular nerve.

A
  • Passes down in front of the interosseous membrane of the leg.
  • Deep to anterior muscles.
22
Q

Where does the superficial fibular nerve arise from?

A

The common fibular nerve.

23
Q

Where does the superficial fibular nerve exit through?

A

Deep near the neck of the fibula.

24
Q

What muscles does the superficial fibular nerve supply?

A
  • Fibularis longus.
  • Fibularis brevis.
25
Q

Describe the pathway of the superficial fibular nerve.

A
  • Travels a short distance down from the neck of the fibula.
  • And sends branches to the top of the foot.
26
Q

Where does the femoral nerve arise from?

A

Lumbar plexus.

27
Q

What does the femoral nerve exit through?

A

Femoral triangle.

28
Q

What muscles does the femoral nerve supply?

A
  • Iliacus.
  • Pectineus.
  • Sartorius.
  • Rectus Femoris.
  • Vastus Lateralis.
  • Vastus Intermedius.
  • Vastus Medialis.
  • Articularis Genu.
29
Q

What are the branches of the femoral nerve?

A
  • Sensory saphenous nerve.
  • Cutaneous branches.
30
Q

Describe the pathway of the femoral nerve.

A
  • Under the inguinal ligament.
  • Through the femoral triangle.
  • Continues through the adductor canal.
31
Q

Where does the obturator nerve arise from?

A

Lumbar plexus.

32
Q

Where does the obturator nerve exit through?

A

Obturator foramen.

33
Q

What muscles does the obturator nerve supply?

A
  • Pectineus.
  • Gracilis.
  • Adductor Longus.
  • Adductor Brevis.
  • Adductor Magnus.
  • Obturator Externus.
34
Q

What are the branches of the obturator nerve?

A
  • Branches to adductors.
  • Sensory branches.
35
Q

Describe the pathway of the obturator nerve.

A
  • Through the psoas major.
  • Enters the obturator canal.
  • Exits the pelvis with obturator vessels.
36
Q

Where does the superior gluteal nerve arise from?

A

Sacral plexus.

37
Q

Where does the superior gluteal nerve exit through?

A
  • Greater sciatic foramen.
  • Above the piriformis.
38
Q

What muscles does the superior gluteal nerve supply?

A
  • Gluteus medius.
  • Gluteus minimuis.
  • Tensor Fascia latae.
39
Q

Where does the inferior gluteal nerve arise from?

A

Sacral plexus.

40
Q

What does the inferior gluteal nerve exit through?

A
  • Greater sciatic foramen.
  • Below piriformis.
41
Q

What muscles does the inferior gluteal nerve supply?

A

Gluteus maximus.

42
Q

Where does the pudendal nerve arise from?

A

Sacral plexus.

43
Q

What does the pudendal nerve exit through?

A

The lower part of the greater sciatic foramen.

44
Q

What muscles does the pudendal nerve supply?

A

Genital + perineal region.

45
Q

What are the branches of the pudendal nerve?

A
  • Inferior rectal nerve.
  • Perineal nerve.
46
Q

What muscle does the inferior rectal branch of the pudendal nerve supply?

A

External anal sphincter.

47
Q

What muscles do the perineal branch of the pudendal nerve supply?

A

Levator ani muscles.

48
Q

Describe the pathway of the pudendal nerve.

A
  • Exits the lower part of the greater sciatic foramen.
  • Between the piriformis + coccygeus.
  • Runs around behind the ischial tuberosity + sacrospinous ligament.
  • Re-enters the lesser sciatic foramen.
  • Passes through the pudendal canal.

Functional Anatomy Year 1 (68 decks)

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