Hydrocephalus

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Author:
lazzsant
ID:
126940
Filename:
Hydrocephalus
Updated:
2012-01-28 18:55:35
Tags:
Martinez lecture
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Description:
Hydrocephalus
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  1. Arnold- Chiari malformation
    • Downward displacement of cerebellar tonsils thorugh foramen magnum which can cause a non-communicating hydrocephalus.
    • There are 4 types.
  2. Dandy-Walker
    • Enlarged 4th ventricle
    • absent cerebellar vermis and posterior midline area of cerebellar cortex (coordination)
    • and cyst formation near internal base of the skull.
    • Warfarin can induce syndrome in the first trimester.
  3. Platybasia
  4. communicating hydrocephalus
  5. noncommunicating hydrocephalus
  6. ex-vacuo
  7. normal pressure
  8. Hypothalamus Posterior area
    Posterior nucleus

    Mamillary body
  9. Hypothalamus Tuberal Area
    • Arcuate nucleus
    • - Produce hypothalamic releasing factors
    • - DOPA-ergic neurons that inhibit prolactin release

    • Ventromedial nucleus
    • - satiety center

    • Dorsomedial nucleus
    • - obesity and savage behavior
  10. Hypothalamus Anterior Area
    • Supraoptic Nucleus
    • Paraventricular nucleus
    • - ADH & oxytocin

    • anterior nucleus
    • - thermal regulation (coolling)
    • - stimulate PNS

    • suprachiasmatic nucleus
    • - recieves input from retina
    • - controls circadian rhythms
  11. Preoptic Area
    • Medial preoptic nucleus
    • Lateral preoptic nucleus
  12. Hypothalamus Lateral area
    .

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