• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/48

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

48 Cards in this Set

  • Front
  • Back
Which neural cell type has the following functions:
1. physical support
2. K+ metabolism
3. removal of excess neurotransmitter
4. Maintains BBB
5. Gliosis in response to injury
Astrocyte (GFAP +)
Microglia are what kind of functional cell? In an HIV infection, how do they react?
Macrophage of the CNS.
In HIV, just like other macrophages, they fuse to become multinucleated giant cells.
What neural cell myelinates CNS axons and is predominantly found in WHITE matter?
What disease destroys them?
Oligodendroglia, which are destroyed in Multiple Sclerosis
What neural cell myelinates PNS axons and promotes axonal regeneration?
Schwann cells
Schwann cells are destroyed in what disease? What tumor is derived from them?
Guillain-Barre syndrome.
Acoustic neuroma (a schwannoma; internal acoustic meatus location, CNVIII risk)
CNS neurons, ependymal cells, oligodendroglia, astrocytes: what is their origin?
Neuroectoderm
Schwann cells and PNS neurons: what is their origin?
Neural crest
Microglia and Macrophages: what is their origin?
*hint: starts w/M
Mesoderm
What conditions are due to an increase in norepinephrine? Decreases?

Where is NE synthesized?
Anxiety and mania increases, Depression decreases

Synthesized in: Locus ceruleus (stress and panic); Reticular formation and Solitary Tract
What conditions due to an increase in dopamine? Decreases?

Where is dopamine synthesized?
Increase: Schizophrenia
Decreased: Parkinson's, depression

Synthesized: Ventral tegmentum and SNc
What conditions are due to a decrease in 5-HT (serotonin)?

Where is 5-HT synthesized?
Decrease: anxiety, depression

Synthesized: Raphe nucleus
What conditions due to a decrease in Ach?

Where is Ach synthesized?
Decrease: Alzheimer's, Huntington's, REM sleep

Synthesized: Basal nucleus of Meynert
What conditions are due to a decrease in GABA?

Where is GABA synthesized?
Decrease: anxiety, Huntington's

Synthesized: Nucleus accumbens
Which hypothalmic nucleus is responsible for cooling and Parasympathetic?
Anterior hypothalamus
Which hypothalmic nucleus is responsible for heating and Sympathetic?
Posterior hypothalamus
Which hypothalamic nucleus produces antidiuretic hormone (ADH) to regulate water balance? Destruction of lesion of this nucleus will result in what?
Supraopti nucleus.
Neurogenic Diabetes Insipidus
What hypothalamic nucleus is considered the "master clock" for circadian rhythms?
Suprachiasmatic nucleus
The Lateral area/nucleus of the Hypothalamus is responsible for ? and a lesion would result in ?

Inhibited by...?
Hunger
Lesion: anorexia, FTT "Shrink Laterally"

Leptin
The Ventromedial area/nucleus of the Hypothalamus is responsible for ? and destruction/lesion would cause ?

Stimulated by...?
Satiety
Lesion: hyperphagia (leading to obesity) "Lesioning VM nucleus makes you grow Ventrally and Medially"

Leptin
The Limbic System is responsible for primitive behaviors. What are they?
The Famous Five F's: Feeding, Fleeing, Fighting, Feeling, F*cking (sex)
Parkinson's is due to a loss of ?
Excessive activity of ? is also associated with it.
Dopaminergic neurons, leading to a decrease in dopamine.
There is also excessive cholinergic activity
What drugs can be used for tx of Parkinson's?
"BALSA"
Bromocriptine (pramipexole, ropinirole): dopamine-R agonists
Amantadine: increase dopamine
L(levo)-dopa/carbidopa: increase dopamine
Selegiline (MAO type B Inhibitor): prevent breakdown of dopamine
Benztropine (antimuscarinic to reduce tremor and rigidity; "Park your Benz"): curb excessive cholinergic activity
What are the C's of Huntington's Disease?
Chorea
Crazy (dementia)
CAG repeat disorder
Caudate degeneration
What two molecules are lost in Huntington's Disease?
Ach and GABA
What do you give for Huntington's Disease?
A dopamine block such as Haloperidol
When you lesion bilateral Amygdala, what condition results?
Kluver-Bucy syndrome: hyperorality, hypersexuality, disinhibited behavior
Someone who is dis-inhibited, can't concentrate, has problems with orientation and judgment likely has a lesion in what brain lobe?
Frontal Lobe
*may have primitive reflexes
Lesion to the Right Parietal Lobe (under assumption that right side is the non-dominant) results in what?

Left Parietal Lobe?
Spatial Neglect Syndrome: agnosia (ability to recognize) of the contralateral side of the world
i.e. woman only puts makeup on one side of her face
i.e. person doesn't recognize their own arm

Left Parietal: Gerstman Syndrome (agraphia, acalculia, finger agnosia, left-right disorientation)
Lesion to the mammillary bodies (bilateral) results in what?
Wernicke-Korsakoff Syndrome
*Wernicke: confusion, opthalmoplegia, ataxia
*Korsakoff: memory loss, confabulation, personality changes
Lesion of what causes anterograde amnesia (can't make new memories)?
Hippocampus
Very rapid correction of HYPOnatremia commonly causes what disorder characterized by acute paralysis, dysarthria, dysphagia, diplopia, and loss of consciousness?
Central Pontine Myelinolysis (IRREVERSIBLE)
Post-thyroidectomy, your patient is hoarse. What did you nick?
Recurrent Laryngeal Nerve
Aphasia ?: nonfluent (because you can't talk) but can comprehend others
Where is the lesion?
Broca's (Broca's Broken Boca).
Inferior Frontal Gyrus.
Aphasia ?: fluent (you can talk) but you have no idea what other's are saying.
Where is the lesion?
Wernicke's (Wernicke's is Wordy but makes no sense)
Superior Temporal Gyrus
Aphasia?: Having both Broca's and Wernicke's Aphasia
Global Aphasia
Conduction aphasia is characterized by what?
Can't repeat: "No its, ands, or buts"
Comprehension is intact, but can't make connection with it and thus what they say is gibberish.
What is the order of incidence (Most common to least) of adult brain tumors?
MGM Studios
Metastsis
GBM (grade IV astrocytoma)
Meningioma
Schwannoma
What are the 3 most common primary brain tumors in children?
Pilocytic Astrocytoma
Medulloblastoma
Ependymoma
Psuedopalisading necrosis. Which primary brain tumor?
GBM
Polycythemia.
A/w von Hipple-Lindau syndrome.
Foamy cells, high vascularity.
Which primary brain tumor?
Hemangioblastoma
Neurofibromatosis II. Which primary brain tumor?
Schwannoma
Amenorrhea, anovulation, galactorrhea.
Which primary brain tumor?
Pituitary adenoma (prolactinoma)
Psammoma bodies. Which primary brain tumor?
Meningioma
Fried-egg appearance. Which primary brain tumor?
Oligodendroglioma
Perivascular psuedorosettes. Which primary brain tumor?
Ependymoma
Bitemporal hemianpoia. Which primary brain tumor?
Pituitary adenoma, Craniopharyngioma
Child with hydrocephalus. Which primary brain tumor?
Medulloblastoma, Ependymoma
Homer-Wright rosettes. Which primary brain tumor?
Medulloblastoma