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NBB Test 2 > Brainstem 2 > Flashcards

Brainstem 2 Flashcards

1
Q

A landmark for medial vs lateral blood supply of the upper medulla

A

Inferior Olivary Nucleus

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2
Q

Due to a deficit in the posterior inferior cerebela artery (PICA)

A

Lateral Medullary Syndrome (Wallenberg Syndrome)

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3
Q

In Wallenberge syndrome, we see contralateral body pain and temperature loss b/c of the lesion of the

A

Spinothalamic tract

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4
Q

In Wallenberge syndrome, we see IPSILATERAL face pain and temperature loss b/c of the lesion of the

A

Spinal Nucleus of V

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5
Q

In Wallenberge syndrome, we see IPSILATERAL hearing loss b/c of the lesion of the

A

Cochlear Nucleus

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6
Q

In Wallenberge syndrome, we see IPSILATERAL Horner’s syndrome b/c of lesion of

A

Descending Hypothalamic fibers

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7
Q

In Wallenberge syndrome, we see IPSILATERAL ataxia b/c of lesion of the

A

Inferior Cerebellar Peduncles

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8
Q

In Wallenberge syndrome, we see vertigo, nausea, vomiting, and nystagmus because of lesion of the

A

Vestibular nuclei

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9
Q

In Wallenberge syndrome, we see IPSILATERAL paralysis of larynx, pharynx, palate, dysarthria, dysphagia, and lack of gag reflex because of lesion of the

A

Nucleus Ambiguus (CNs IX and X)

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10
Q

In Wallenberge syndrome, we see taste loss because of lesion of the

A

Nucleus Solitarius

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11
Q

Medial Medullary syndrome is due to a deficit of the

A

Anterior Spinal Artery

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12
Q

In medial medullary syndrome, we see contralateral arm or leg weakness and spatic paralysis because of a lesion to the

A

Corticospinal tract

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13
Q

In medial medullary syndrome, we see CONTRALATERAL decreased position, tactile, and vibration sense because of a lesion of the

A

Medial Lemniscus

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14
Q

In medial medullary syndrome, we see IPSILATERAL flaccid paralysis of the tongue with deviation on protrusion to side of lesion because of lesion to

A

Hypoglossal nucleus and axons

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15
Q

In the Pons, the corticospinal tract is ALWAYS

A

Medial

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16
Q

In the pons, the STT and Descending hypothalamic fibers are ALWAYS

A

Lateral

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17
Q

In the Pons, shifts from medial to lateral

A

Medial Lemniscus

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18
Q

Has motor efferents for the muscles of facial expression, stapedius muscle, and part of digastric muscle

A

CN VII

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19
Q

Has preganglionic parasympathetic innervation for the lacrimal, sublingual, submandibular, and ALL of ther salivary glands EXCEPT for the parotid gland

A

CN VII

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20
Q

Nucleus of CN VII responsible for salivation and lacrimation

A

Superior Salivatory Nucleus (SSNu)

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21
Q

Nucleus of CN VII responsible for taste on anterior 2/3 of tongue

A

Rostral Solitary Nucleus

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22
Q

Unilateral facial weakness (of LMN type) acutely (overnight) with retroauricular pain and sometimes hyperacusis

A

Bell’s Palsy

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23
Q

Has motor innervation for th emuscles of mastication and tensor tympani

A

CN V

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24
Q

Provides touch and pain sensations for the nasal sinuses and inside of nose and mouth and cornea

A

CN V

25
Q

CN V also provides pain from the

A

Supratentorial Dura Matter

26
Q

Which division of CN V is responsible for the sensory innervation to the cornea and dura (anterior)?

A

V1 (opthalamic)

27
Q

CN V2 (Maxillary) provides sensory for the

A

Upper teeth

28
Q

Which division of CN V provides sensory innervation to the anterior 2/3 of the tongue and the lower teeth?

A

V3 (Mandibular Division)

29
Q

The trigemino-thalamic pathway for pain and temperature from the face crosses at the

A

Medullary and pontine levels

30
Q

Nucleus that extends from lower part of the pons, through the medulla, and to the upper cervical segment of the spinal cord (C2-C3)

-Pain and temperature from face

A

Spinal nucleus of V

31
Q

Provides the ipsilateral impulses of pain, temperature, and some touch from the head, face, and neck

A

Spinal nucleus of V (Spinal trigeminal tract)

32
Q

Spinal nucleus V also receives afferents from CNs

A

IX and X

33
Q

The trigemino-lemniscal pathway for touch and pressure from the face crosses at

A

Pontine levels

34
Q

The nucleus of CN V responsible for the impulses of touch and pressure sensation from the head and face

A

Main Sensory Nucleus of V (Trigemino-lemniscus pathway)

35
Q

Unconscious proprioception and the afferent loop for the jaw jerk reflex are through the

A

Mesencephalic nucleus of V

36
Q

Control the force of the bite (similar to the dorsal nucleus of Clarke)

-proprioceptive and impulse forces from the face

A

Mesencephalic nucleus of V

37
Q

Nucleus of CN V for innervation of muscles of mastication and tensor tympani

A

Motor nucleus of V

38
Q

CN V lesions are relatively

A

Uncommon

39
Q

We will see chin deviation towards the paralyzed side due to pterygoid action when the jaw opens

A

CN V lesion

40
Q

Facial sensation is normal, but there are recurrent episodes of brief severe pain lasting from seconds to a few minutes with

A

Trigeminal Neuralgia (V2-V3)

41
Q

We also see loss of corneal/jaw reflex with

A

CN V lesion

42
Q

A deficit of paramedian branches of the basilar artery

A

Medial Pontine Syndrome

43
Q

What are two symptoms of medial pontine syndrome?

A

Contralateral arm or leg weakness (CST), and contralateral decreased position, tactile, and vibration sense (ML)

44
Q

Due to a deficit in the anterior inferior cerebellar artery

A

Lateral Pontine Syndrome

45
Q

Controls movement of the contralateral extremities

-Starts in upper brainstem and crossing occurs at upper brainstem

A

Rubrospinal tract

46
Q

Travels with the LCST until it ends in the cervical spinal cord

A

Rubrospinal tract

47
Q

Controls coordination of the head and eye movement

A

Tectospinal tracts

48
Q

Starts in the superior colliculus of the midbrain and it is crossed

A

Tectospinal tract

49
Q

Nucleus of CN III that provides motor innervation to the superior, inferior and medial rectal as well as the inferior oblique and levator palpebrae sup. muscles

A

Oculomotor Nucleus

50
Q

Motor portion of CN III that controls sphincter pupillae and ciliary muscle

A

Edinger-Westphal nucleus

51
Q

Ventral (medial) Midbrain syndrome (Weber) is a deficit of the

A

Posterior cerebral artery

52
Q

In ventral (medial) Midbrain syndrome (Weber), we see contralateral arm of leg weakness and spastic paralysis because of lesion of the

A

Corticospinal tract

53
Q

In ventral (medial) Midbrain syndrome (Weber), we see contralateral hemiparesis of the lower face because of lesion of the

A

Corticobulbar Tract

54
Q

In ventral (medial) Midbrain syndrome (Weber), we see IPSILATERAL oculomotor palsy and ptosis because of lesion to

A

CN III axons and nuclei

55
Q

Dorsal midbrain syndrome (Perinaud’s) is due to a

A

Pineal Tumor

56
Q

In Dorsal midbrain syndrome (Perinaud’s), we see paralysis of upward gae and various pupillary abnormalities because of the lesion of

A

Superior colliculi and pretectal area

57
Q

In Dorsal midbrain syndrome (Perinaud’s), we see noncommunicating hydrocephalus because of pressure on the

A

Cerebral aqueduct

58
Q

The only nerve that enters on the dorsal side of the brainstem

A

Trochlear Nerve (CN IV)

NBB Test 2 (33 decks)

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