Practice questions 3 Flashcards
what are the characteristics of an HSV infection of the eye
pain relapsing remitting oedema opacity enlarged cervical lymph nodes corneal inflammation
what is a sign of adenovirus conjunctivitis
enlarged periauricular lymph node enlargement
what stage of sleep are K complexes and sleep spindles typical of
stage 2
what pathogens could be involved in an 82 year old woman with bacterial meningitis
strep pneumoniae
a 39 yo pregnant woman with encephalitis
toxoplasma gondii
a heroin addict with meningitis
cryptococcus neoformans
ant belly of digastric muscle
1st arch
common carotid arterys
3rd arch
branchial fistula
2nd arch
treacher collins
1st arch
man who has fallen from a height
extradural haematoma
deliberate trauma with cresent shaped area of blood
subdural haematoma
what does the posterior cerebral artery supply
occipital lobe, temporal lobe and midbrain
what does the PICA supply
lateral medulla and cerebellum
what is the blood supply of the lateral pons and cerebellum
AICA
lumbar puncture in a child
L4/5
How many more times frequent is depression in people with chronic health problems
2 or 3 times
what class of drugs are tricyclics chemically related to
phenothiazines
how do tricyclics work
inhibits the reuptake of noradrenaline into the presynaptic terminals
they are antimuscarinics
can be used to treat enuresis (inhibits bladder contraction)
what are the side effects of tricyclics
seizures cardiotoxicity blurred vision urinary retention dry mouth raised intraocular pressure
subacute injury after stroke
tissue destruction with liquefactive necrosis
where is blood from a subarachnoid haemorrhage from the circle of willis most likely to be seen on a CT
suprasellar cistern
where are shunts for hydrocephalus usually inserted
4th ventricle
what bones form the pterion
frontal parietal temporal and sphenoid
what structures form the striatum
caudate nucleus and putamen
what is the name of the fibres within the corona radiata of the internal capsule which carries information to the cerebrum
association fibres
ventral spinocerebellar tract
conveys proprioceptive information from the body to the cerebellum.
‘double crossing’
dorsal does not cross
What are Merkel’s discs
detect static touch and pressure
slowly adapting, A beta fibres
where is the olfactory centre
frontal lobe
what would happen in a lesion of the vermis
wide based stance
rhombencephalon
hindbrain
supplementary motor area
mental rehearsal of an action
vestibulospinal pathways
facilitate limb extensor neurons of axial and proximal muscles
when do brain lobes and groves become evident
28 weeks
what nerve runs in the cavernous sinus
v2 and internal carotid artery
pacinian corpuscles
vibration
meissners corpucles
stroking, touch
merkels discs
light pressure
ruffinis corpuscles
stretch
hair follicle receptors
displacement of hairs
what is procedural memory
motor skills e.g. how to ride a bike
mainly involves cerebellar circuits
what is the effect of phenytoin having a long half life
may take a few weeks to reach a therapeutic dose
monitoring is essential
in what order do the ossicles go in
malleus incus stapes
which semicircular canal is responsible for roll
posterior
Anterior semicircular canal
pitch
horizontal semicircular canal
yaw
which taste sensation relies on a G protein linked pathway and adenylate cyclase
sweet
what is the function of benzodiazepines
anxiolytic, sedative, muscle relaxant, anticonvulsant
not an antipsychotic
what ion is involved in action potentials in ear hair cells
calcium
what are the features of kluver bucy syndrome, resulting from bilateral lesions of the medial temporal lobe
hyperphagia, hypersexuality, hyperorality, visual agnosia, and docility.
what forms the lower eyelids in the foetus
maxillary prominence
what would you use to treat absence seizures
ethosuximide
