• Neurology oxf.

1. Cns Anatomy.

1. Anatomy.

***) One of the following is the twelfth cranial nerve: Q2012

1. Accessory nerve

2. Trigeminal nerve

3. Glossopharyngeal nerve

4. Hypoglossal nerve

5. Vagus nerve

Answer: D* Hypoglossal nerve

***) Dysfunction of which of the following causes cortical blindness:

1. Occipital lobes

2. Temporal lobes

3. Parietal lobes

4. Frontal lobes

5. Hypothalamus

Answer: A* Occipital lobes

***) All the following muscles are supplied by the trigeminal nerve except:

1. Tensor veli palatini

2. Tensor tympani

3. Masseter

4. Posterior belly of digastric

5. Mylohyoid

Answer: D* Posterior belly of digastric

2. Common cns Presentations.

1. Ptosis.

***) Ptosis is a feature of all the following except: Q2012

1. Myotonic dystrophy

2. Horner syndrome

3. Oculomotor nerve palsy CN III

4. Abducens nerve palsy CN VI

5. Myasthenia gravis

Answer: D* Abducens nerve palsy CN VI

2. Marfan syndrome.

***) 22 years old male has feature of arm span greater than height, subluxed lenses, flattened corneas, and dilation of the aortic ring. The most likely diagnosis is: Q2012

1. Ehlers-Danlos syndrome

2. Marfan syndrome

3. Werner's syndrome

4. Laurence-Moon-Biedl syndrome

5. Hunter's syndrome

Answer: B* Marfan syndrome

3. Aphasia.

***) 65 years old male with DM and HTN, develops acute right sided hemiplegia, on examination he has intact comprehension, can obey commands but unable to speak or repeat phrases. His language disturbance represents one of the following: Q2012

1. Receptive aphasia

2. Expressive aphasia

3. Global aphasia

4. Anomic aphasia

5. Cerebellar aphasia

Answer: B* Expressive aphasia

4. Tremor.

***) All of the following are causes of tremor, except:

1. Parkinsonism

2. Familial

3. Hypoglycemia

4. Anxiety

5. Hyperparathyroidism

Answer: E* Hyperparathyroidism

***) Tremor may be seen in all of the following conditions, except:

1. Hyperthyroidism

2. Respiratory failure

3. Hepatic failure

4. Parkinson's disease

5. Depression

Answer: C* Hepatic failure

5. Chorea.

***) All of the following are causes of chorea, except:

1. Rheumatic fever

2. Huntington's disease

3. Carbamazepine

4. Polycythemia rubra vera

5. Pregnancy

Answer: D* Polycythemia rubra vera

***) All of the following are causes of chorea, except:

1. Rheumatic fever

2. Pregnancy

3. Contraceptive pills

4. Multiple sclerosis

5. Systemic lupus erythematosus

Answer: D* Multiple sclerosis

6. Pupillary Abnormalities.

***) Pinpoint pupils are seen in all the following, except: Q2012

1. Organophosphorus poisoning

2. Opiates overdose

3. Pontine hemorrhage

4. Subarachnoid hemorrhage

5. Insecticide intoxication

Answer: D* Subarachnoid hemorrhage

***) Causes of small pupils include all of the following, except:

1. 3^rd cranial nerve palsy

2. Horner's syndrome

3. Pontine hemorrhage

4. Tabes dorsalis

5. Organophosphorus poisoning

Answer: A* 3^rd cranial nerve palsy

7. Papilledema.

***) False statement about papilledema:

1. It takes usually 24-48 hours to develop but can occur as early as 6 hours

2. Caused by axoplasmic stasis

3. Does not affect visual acuity unless the macula area is affected by hemorrhage

4. Never seen unilaterally

5. Papillitis gives similar findings on clinical examination

Answer: D* Never seen unilaterally

***) Causes of papilledema include all of the following, except: