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Neurology and Neurosurgery > Neuroanatomy > Flashcards

Neuroanatomy Flashcards

1
Q

What is the motor and sensory function of the musculocutaneous nerve?

A
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2
Q

What is the motor and sensory function of the axillary nerve?

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3
Q

What is the motor and sensory function of the radial nerve?

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4
Q

What is the motor and sensory function of the median nerve?

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5
Q

What is the motor and sensory function of the ulnar nerve?

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6
Q

What are the common injuries to the musculocutaneous nerve, and what are the subsequent deformities?

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7
Q

What are the common injuries to the axillary nerve, and what are the subsequent deformities?

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8
Q

What are the common injuries to the radial nerve, and what are the subsequent deformities?

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9
Q

What are the common injuries to the median nerve, and what are the subsequent deformities?

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10
Q

What are the common injuries to the ulnar nerve, and what are the subsequent deformities?

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11
Q

What are the functions of CN III?

A

The oculomotor nerve (III) has somatic and parasympathetic functions.

Somatic motor function:

  • Eye movement: superior rectus, inferior rectus, medial rectus, and inferior oblique muscles
  • Eyelid opening: levator palpebrae superioris

Parasympathetic motor function:

  • Pupillary constriction: sphincter pupillae (Edinger-Westphal nucleus and muscarinic receptors)
  • Accommodation: ciliary muscle
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12
Q

Describe the anatomical course of the sciatic nerve

A
  • After its formation, it leaves the pelvis and enters the gluteal region via greater sciatic foramen.
  • It emerges inferiorly to the piriformis muscle and descends in an inferolateral direction.
  • It then enters the posterior thigh by passing deep to the long head of the biceps femoris.
  • When the sciatic nerve reaches the apex of the popliteal fossa, it terminates by bifurcating into the tibial nerve and common fibular/peroneal nerve.

Note: the sciatic nerve can be described as two individual nerves bundled together in the same connective tissue sheath – the tibial and common fibular nerves. These usually separate at the apex of the popliteal fossa, however in approximately 12% of people they separate as they leave the pelvis.

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13
Q

What is the motor and sensory function of the femoral nerve?

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14
Q

What is the motor and sensory function of the obturator nerve?

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15
Q

What is the motor and sensory function of the sciatic nerve?

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16
Q

What is the motor and sensory function of the tibial nerve?

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17
Q

What is the motor and sensory function of the common pernoeal/fibular nerve?

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Neurology and Neurosurgery (8 decks)

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