Which of the following is NOT true of a benign tumour...
Benign tumours cause damage through the process of compression
Benign tumours damage brain tissue by infiltration
The flow of CSF can be shut off by a growing benign tumour
Benign tumours are encapsulated
A(n) _________ is an example of a malignant tumour derived from glial cells.
Meningioma
Pinealoma
Angioma
Metastatic oligodendrocytoma
Partial seizures...
Are more severe than generalized seizures
Involve the motor system
Involve widespread brain regions
Originate from a definite focus or source within the brain
After surgery to relieve seizures, neuropsychological function may...
Decline due to scarring
Stay the same
Improve due to the release of compensatory mechanisms
Improve due to increase in compensatory mechanisms
The mode of action of most anticonvulsant drugs involves...
blocking dopamine receptors
enhancing the effectiveness of inhibitory synapses in the brain
damping the outflow of the basal ganglia
blocking GABA receptors
Prolonged interruption of the blood supply to a region of the brain results in...
Vasoconstriction
Hyperglycaemia
Ischaemia
Vasodilation
The cause of a neuron cell death after a stroke usually involves...
Interruption of the glycogen delivery to the cell
Reduced neuronal firing produced by tissue compressions
Abnormally high synpatic levels of glutamate
The loss of oxygen radicals within glial cells
A key pathway through which alcohol disrupts normal brain development is by interfering with...
A protein that helps guide neuronal growth in the developing brain
The conversion of phenylalanine into tyrosine
The function of glial membrane sodium-potassium transporters
The processes that terminate the formation of new neurons
What is thought to cause the rigidity and tremors associated with Parkinson's Disease...
Degeneration of the serotonin-producing cells of the substantia nigra
Excessive activity in the ventrolateral thalamus
Degeneration of the caudate nucleus and putamen
Degeneration of the dopamine-producing cells of the substantia nigra
Which of the following is not used to treat Parkinson's Disease?
L-Dopa
Dopamine agonists
Neurosurgery
Cholinergic agonists
An autoimmune reaction that damages _______ is the cause of multiple sclerosis.
The myelin sheaths surrounding nerve cells
Presynaptic muscarinic receptors
Acetylcholinergic neruons
GABAergic neurons
The etiology of Multiple Sclerosis may involve...
Damage to the blood-brain barrier by a virus
Lack of an enzyme needed for myelinisation
The formation of neurofibrillary tangles
The formation of β-amyloid protein
The symptoms of multiple sclerosis can be partially alleviated by...
Administration of interferon α
Drugs that block acetycholinesterase
Administration of interferon β
Drugs that block glutamate receptors
The herpes simplex virus...
Usually causes cold sores
Can cause herpes encephalitis
Usually lives within the 5th cranial nerve
All of the above
Neurological damage occurs in HIV...
Because HIV crosses the blood-brain barrier
Because glycoprotein gp120 triggers cell suicide
Because of an increase in GABA receptor sites
Because of mutations of presenilin genes
