Which ONE of the following statements is CORRECT about glioblastoma multiforme?
A 14 year old boy presents with the clinical findings of progressive ataxia,
absent reflexes and diminished joint position and vibration sesnation. Friedreich
ataxia was diagnosed by DNA testing. Which ONE of the following was the most
likely DNA test result?
Betty has recently suffered a stroke resulting from a thromboembolism in the
territory of the left middle cerebral artery. Which ONE of the following
statements about her condition is likely to be CORRECT?
Which ONE of the following statements about subarachnoid haemorrhage is CORRECT?
The whoop-whoop bird emits a 200Hz tone. A person who has difficulty in localising
a whoop-whoop bird could have:
Which ONE of the following statements about the cerebral hemispheres is CORRECT?
Bill is a 34 year old who is interested in joining the air force. He has his eyes examined
and is told that he has deuteranopia. Bill asks the doctor to explain what he
means by deuteranopia. Which ONE of the following statements about deuteranopia is corrrect?
Joan is a 45 year old woman who has been experiencing headaches. Her visual acuity
is normal as is her colour vision. Her visual fields are shown below. The most likely
cause of her problem is:
The following scenario applies to Q9 and Q10.
Parkinson's disease is characterised by akinesia, shuffling gate, rigidity, rest
tremor and loss of postural reflexes. The origin of these symptoms is the progressive
loss of dopaminergic neurons in the midbrain. L-dopa, a drug that is converted
to dopamine upon entry into the CNS, can significantly ameliorate these symptoms.
The most likely bases of L-dopa's efficacy is:
Which ONE of the following statements is true of the symptoms of Parkinson's disease: