Neuro CABS

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Author:
pa2012
ID:
70897
Filename:
Neuro CABS
Updated:
2011-03-08 17:14:57
Tags:
neuro unit cabs marlene
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Description:
Neuro CABS U5 (Marlene)
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  1. What CN's are in the medulla?
    • There are five:
    • 7,8,9,10,12
  2. The Nucleus of the Medulla are:
    • Solitary (Sensory) VII, IX, X
    • (Taste, visceral sensation)

    Vestibular (VIII)

    Hypoglossal (XII)

    Ambiguus (IX, X)

    Dorsal (X)
  3. Where is the medulla?
    The medulla is in the Pons
  4. Por donde pasa el Hypoglossal nucleus?
    • Beteween Pyramids and the Olives!
    • (Egiptians and Martinis)
  5. Otro nombre para superior and inferior Calliculi?
    Corpora quadragemina
  6. Donde esta el Trigeminal nerve?
    Esta en PONS, pero se extiende (arriba) hacia MIDBRAIN y (abajo) hacia MEDULLA
  7. Lesions anywhere in the BRAINSTEM will cause____ because_____
    • 1. diminished facial sensation!
    • 2. Trigeminal nerve extends all the way in the Brainstem (Midbrain, Pons, Medulla)
  8. Ventral Medulla...
    motor (Lower body)
  9. Dorsal Medulla
    Sensory (Upper body)
  10. What is MLF?
    Medial Longitudial Fasciculus
  11. Example of who uses the MLF...
    Hunters!
  12. MLF controls...
    • gaze AND head movement
    • (CN's 3,4,6,8)
  13. Which artery supplies the midbrain?
    PCA
  14. Which artery supplies the Cerebellum?
    PICA
  15. Which artery supplies the PONS?
    Basilar artery (Paramedian and circumferential branches)
  16. Which artery supplies the Medulla?
    PICA and Vertebral arteries (lateral and paramedian branches)
  17. Signs of Medullary Dysfunction...
    • Signs of Medullary Dysfunction...
    • THINK of the CN nucleus of the medulla... Remember, there are five.
    • Vertigo
    • Ataxia
    • Nystagmus
    • Resp arrest
    • Autonomic instability
    • hiccups

    (CN's 7,8,9,10,12)
  18. Medial (basal) medullary syndrome, will ONLY affect which CN? Why?
    • XII hypoglossal. Because it is the only medial CN. The others are lateral.
    • Sign:
    • With a Right side lesion...
    • Right tongue deviation
    • Left body paralysis

    • BRAINSTEM LESIONS:
    • IPSILATERAL FACE
    • CONTRALATERAL BODY

    THE MEDULLA IS IN THE BRAIN STEM!
  19. Pt. with Dysphagia and Hoarseness. Affected Medullary nucleus is:
    Nucleus ambiguus (in Medulla).

    The Medulla is in the Brain stem.
  20. Contralateral body pain and temp loss. Tract...
    Spinothalamic

    (Decussates at: 1-2 vertebrae in cord)
  21. Pt does not have a gag reflex. Affected CN is...
    IX, X
  22. Vertigo, nystagmus, N/V. Nuclei affected...
    vestibular nuclei
  23. Ipsilateral limb ataxia & intention tremor
    (inferior cerebellar peduncle)
  24. Horner's syndrome, S/S
    • ptosis
    • miosis
    • hydrosis
    • (Ipsilateral) (Sympathetic Pathway)!
  25. Subarachnoid hemorrhage presents most commonly with...




    marlene
    severe headache

    ...and may require analysis of cerebrospinal fluid when neuroimaging is not definitive

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