3/22 neuro Flashcards
Short acting benzos?
-mnemonic?
TOM acts fast
- triazolam
- oxazepam
- midazolam
*also alprazolam. AL bundy has a short fuse.
Essential tremor
-Tx:
propanolol
-2nd line = primidone.
3 major types of glial cells
astrocytes, oligodendrocytes, microglia
astrocytes & oligodendros
-derived from what tissue?
neuroectoderm
which hypoT nucleus maintains circadian rhythm?
-mnemonic?
suprachiasmatic nucleus
-hard to be “super charismatic” when you have jet lag.
All sensory information goes through thalamus except:
olfaction
When a pt needs IV ABxs, can oral ABxs be a good enough substitute?
no
-oral ABxs do not adequately penetrate the CSF.
heroin withdrawal
-key Sxs:
dilated pupils
yawning
lacrimation
Alcohol & benzo withdrawal
-key Sxs:
tachy
seizures
nicotine withdrawal
-key Sxs:
inc. appetite
Seizures
-opioid or alcohol withdrawal?
alcohol withdrawal can produce seizures, opioid withdrawal does NOT.
*benzo withdrawal can also lead to seizures.
nicotinic receptor
-how many ACh need to bind for channel to open?
2
chlorpromazine
-high or low potency?
low potency antipsychotic
fluphenazine
-high or low potency?
high potency antipsychotic
entacapone
-mech?
peripheral COMT inhibitors, prevent L-DOPA degradation, increased dopamine availability.
entacapone vs tolcapone
-difference?
Entacapone inhibits peripheral COMT while tolcapone inhibits both central & peripheral COMT.
MAO-B
-degrades what?
dopamine
MAO-A
-degrades what?
NE & serotonin
Which receptor causes mydriasis?
alpha1
What nerve inn. all the muscles of mastication?
V3 (mandibular) of the trigeminal
which muscle opens the jaw?
lateral pterygoid
Mandibular n. (V3, trigeminal)
-exits skull through which foramen?
foramen ovale
Maxillary n. (V2, trigeminal)
-exits skull through which foramen?
foramen rotundum
TCAs
-blockade of what leads to arrythmias?
cardiac fast sodium channels
*also keep in mind, blockade of muscarinic receptors can also cause tachy.