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FA - Neurology > Neuro14 > Flashcards

Neuro14 Flashcards

Brain Stem

1
Q

Which cranial nerves lied medially at brain stem?

A

CN III, VI, XII

“3 (x2) = 6 (x2) = 12”

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2
Q

What cranial nerve arises dorsally and immediately decussates?

A

CN IV

“tricky trochlear”

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3
Q

What is the function of the Pineal gland?

A

Melatonin secretion

Circadian rhythms

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4
Q

What is the function of the Superior colliculi (AKA Tectum)?

A

Conjugate Vertical gaze center

“your eyes are above your ears, and the Superior Colliculus (Visual) is above the Inferior Colliculus (Auditory)”

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5
Q

What is the function of the Inferior colliculi?

A

Auditory

“your eyes are above your ears, and the Superior Colliculus (Visual) is above the Inferior Colliculus (Auditory)”

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6
Q

What is the Medial Geniculate Nucleus?

A

Part of the auditory thalamus and represents the thalamic relay between the inferior colliculus (IC) and the auditory cortex (AC)

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7
Q

What is the Lateral Geniculate Nucleus?

A

primary relay center for visual information received from the retina of the eye. The LGN is found inside the thalamus of the brain.

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8
Q

What is Perinaud syndrome?

A

Paralysis of Conjugate vertical gaze – Can’t look UP
-Lesion in Superior Colliculi

*often due to a Pinealoma

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9
Q

CN I

A

Olfactory n.

-Sensory

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10
Q

CN II

A

Optic n.

-Sensory

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11
Q

CN III

A

Oculomotor n.

-Motor

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12
Q

CN IV

A

Trochlear n.

-Motor

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13
Q

CN V

A

Trigeminal n.

-Both (sensory & motor)

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14
Q

CN VI

A

Abducens n.

-Motor

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15
Q

CN VII

A

Facial n.

-Both (sensory & motor)

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16
Q

CN VIII

A

Vestibulocochlear n.

-Sensory

17
Q

CN XI

A

Glossopharyngeal n.

-Both (sensory & motor)

18
Q

CN X

A

Vagus n.

-Both (sensory & motor)

19
Q

CN XI

A

Accessory n.

-Motor

20
Q

CN XII

A

Hypoglossal n.

-Motor

21
Q

What is the Mnemonic for remembering CN function (sensory or motor or both)?

A

Some Say Marry Money, But My Brother Says Big Brains Matter Most

22
Q

What is the only cranial nerve that does NOT have thalamic relay to the cortex?

A

Olfactory

23
Q

What CN monitors Carotid Body and Sinus Chemo- and Baroreceptors?

A

Glossopharyngeal n. (CN IX)

24
Q

What CN monitors Aortic Arch Chemo- and Baroreceptors?

A

Vagus n. (CN X)

25
Q

What is the only muscle in the pharynx innervated by CN IX? What is its function?

A

Stylopharyngeus m.

-Elevates phayrnx, larynx

26
Q

Where are the cranial nerve nuclei located?

A

In Tegmentum portion of Brain Stem (between dorsal and ventral portions)

27
Q

What CN nuclei are in the midbrain?

A

CN III, IV

28
Q

What CN nuclei are in the Pons?

A

CN V, VI, VII, VIII

29
Q

What CN nuclei are in the Medulla?

A

CN IX, X, XII

30
Q

What CN nuclei are in the spinal cord?

A

CN XI

FA - Neurology (22 decks)

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