Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neurobiology II > Clinical Applications & Brainstem Lesions > Flashcards

Clinical Applications & Brainstem Lesions Flashcards

1
Q

What are the midbrain vascular territories?

A
  • Paramedian branches at top of Basilar Artery
  • Proximal Posterior Cerebral Artery
  • Superior Cerebellar Artery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the rostral pons vascular territories?

A
  • Basilar Artery (Paramedian branches, Circumferential branches)
  • Superior Cerebellar Arteries (supply superior cerebellar peduncles)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the caudal pons vascular territories?

A
  • Basilar artery (paramedian branches & circumferential branches)
  • Anterior inferior cerebellar artery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the medulla vascular territories?

A
  • Vertebral arteries & anterior spinal artery (paramedian branches)
  • Posterior inferior cerebellar arteries
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What vasculature is implicated in the medial medullary syndrome?

A

Paramedian branches of vertebral and anterior spinal arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the symptoms of the medial medullar syndrome?

A
  • Contralateral arm & leg weakness
  • Contralateral position & vibration sense impaired
  • ipsilateral tongue weakness
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What vasculature is implicated in lateral medullary syndrome?

A

Posterior inferior cerebellar artery (and/or vertebral artery)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the symptoms of lateral medullary syndrome?

A
  • Ipsilateral ataxia, vertigo, nystagmus & nausea
  • Ipsilateral facial pain & temp sense impaired
  • Contralateral body pain & temp sense impaired
  • Ipsilateral Horner’s syndrome
  • Hoarseness, dysphagia
  • Ipsilateral decreased taste
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What vasculature is implicated in medial pontine basis infarcts?

A

Paramedian branches of Basilar Artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the symptoms of medial pontine basis infarcts?

A
  • Contralateral weakness of face arm & leg
  • Dysarthria
  • Contralateral (or ipsilateral ataxia)
  • Ipsilateral face weakness
  • Ipsilateral horizontal gaze palsy
  • internuclear ophthalmoplegia (INO)
  • Contralateral body position & vibration sense impaired
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What vasculature is implicated in lateral caudal pons (AICA syndrome)?

A

Anterior inferior cerebellar artery & labyrinthine artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the symptoms of lateral caudal pons infarcts?

A
  • Ipsilateral ataxia
  • Vertigo, nystagmus
  • Ipsilateral fascial pain & temp sense impaired
  • Contralateral body pain & temp sense impaired
  • Ipsilateral Horner’s Syndrome
  • Ipsilateral hearing loss
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the symptoms of superior cerebellar artery syndrome?

A

Ipsilateral ataxia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Damage were causes locked in syndrome?

A

Bilateral ventral pons (Basilar artery)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are symptoms of locked in syndrome?

A

absent motor function bilaterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is intact in locked-in syndrome?

A
  • cognition
  • Sensation
  • vertical eye movement
17
Q

What are the symptoms of midbrain basis?

A
  • Ipsilateral third-nerve palsy
  • Contralateral hemiparesis
18
Q

What are the symptoms of midbrain tegmentum?

A
  • Ipsilateral third- nerve palsy
  • Contralateral ataxia
19
Q

What are the symptoms of midbrain basis & tegmentum?

A
  • ipsilateral third nerve palsy
  • contralateral hemiparesis
  • contralateral ataxia, tremor, involuntary movements
20
Q

Within medial medullary syndrome what structures are damaged to cause:
- Contralateral arm & leg weakness
- Contralateral position & vibration sense impaired
- ipsilateral tongue weakness
-

A
  • Corticospinal tract (Contralateral arm & leg weakness)
  • Medial lemniscus (Contralateral position & vibration sense impaired)
  • Hypoglossal nucleus & fascicles (ipsilateral tongue weakness)
21
Q

Within lateral medullary syndrome what structures are damaged to cause:
- Ipsilateral vertigo, nystagmus
- Ipsilateral ataxia, nausea, vertigo, nystagmus
- Ipsilateral facial pain & temp sense impaired
- Contralateral body pain & temp sense impaired
- Ipsilateral Horner’s syndrome
- Hoarseness, dysphagia
- Ipsilateral decreased taste

A
  • Vestibular nuclei (vertigo, nystagmus)
  • Inferior cerebellar peduncle (Ipsilateral ataxia, vertigo, nystagmus & nausea)
  • Spinal trigeminal nucleus & tract (Ipsilateral facial pain & temp sense impaired)
  • Anterolateral pathway (Contralateral body pain & temp sense impaired)
  • Descending sympathetic fibers (Ipsilateral Horner’s syndrome)
  • Nucleus ambiguous (Hoarseness, dysphagia)
  • Solitary nucleus (Ipsilateral decreased taste)
22
Q

Within medial pontine basis infarcts what structures are damaged to cause:
- Contralateral weakness of face, arm & leg
- Contralateral (or ipsilateral ataxia)
- Ipsilateral face weakness
- Ipsilateral horizontal gaze palsy
- internuclear ophthalmoplegia (INO)
- Contralateral body position & vibration sense impaired

A
  • corticospinal & corticobulbar tracts (Contralateral weakness of face arm & leg)
  • pontine nuclei (Contralateral ataxia))
  • Fascial nucleus & faciculus (Ipsilateral face weakness)
  • Abducens Nucleus (Ipsilateral horizontal gaze palsy)
  • Medial Longitudinal Fascicles (internuclear ophthalmoplegia (INO))
  • Medial leminscus (Contralateral body position & vibration sense impaired)
23
Q

Within lateral caudal pons what structures are damage to cause:
- Ipsilateral ataxia
- Vertigo, nystagmus
- Ipsilateral fascial pain & temp sense impaired
- Contralateral body pain & temp sense impaired
- Ipsilateral Horner’s Syndrome
- Ipsilateral hearing loss

A
  • Middle cerebellar peduncle (Ipsilateral ataxia)
  • Vestibular nuclei (Vertigo, nystagmus)
  • Spinal trigeminal nucleus & tract (Ipsilateral fascial pain & temp sense impaired)
  • Anterolateral system (Contralateral body pain & temp sense impaired)
  • Descending sympathetic fibers (Ipsilateral Horner’s Syndrome)
  • Labyrinthe artery also supplies labyrinth (Ipsilateral hearing loss)
24
Q

Within Midbrain Basis what structures are damage to cause:
- Ipsilateral third nerve palsy
- Contralateral hemiparesis

A
  • Oculomotor fibers leaving oculomotor nucleus (ipsilateral third nerve palsy)
  • Corticospinal tract (contralateral hemiparesis)
25
Q

Within Midbrain tegmentum what structures are damaged to cause:
- ipsilateral third nerve palsy
- Contralateral ataxia

A
  • Oculomotor fibers leaving oculomotor nucleus (ipsilateral third nerve palsy)
  • Red nucleus (Contralateral ataxia)
26
Q

Within midbrain basis & tegmentum what structures are damaged to cause:
- Ipsilateral third nerve palsy
- Contralateral hemiparesis
- Contralateral ataxia, tremor, involuntary movements

A
  • Oculomotor fibers leaving oculomotor nucleus (ipsilateral third nerve palsy)
  • Corticospinal tract (contralateral hemiparesis)
  • Substantia nigra (contralateral ataxia, tremor, involuntary movements)

Neurobiology II (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions