Reference no: EM133859712

Assignment:

Biological criteria of normality are based on statistical concepts. Body height may be used as an example. If the heights of every individual in a large sample were plotted on a graph, the many points would fall on a bell-shaped curve. At one end of the curve would be the very short people, and at the other extreme the few very tall people.

1. Can proximal muscle weakness be more than that of the distal muscles in cases of upper motor neurone lesions?

2. In the absence of either myopathy or radiculopathy, could a pyramidal tract lesion be diagnosed despite a distribution of weakness that is proximal more than distal?

3. Are brisk deep tendon reflexes, rather than hyperreflexia, pathognomonic of pyramidal tract lesion?

4. What is Wartenberg's reflex (sign), and is it diagnostic of a pyramidal tract lesion?

5. Must an extensor plantar response be present in order to diagnose a pyramidal tract lesion even in the presence of weakness of pyramidal distribution and other pathological reflexes?

6. Is it common to find Babinski's sign positive in Todd's paralysis?

7. In a case of paraplegia owing to an upper motor neuron lesion, does the ability of the patient to sit indicate intact thoracic segments?

8. Can the Brown-Séquard syndrome be diagnosed with pyramidal weakness of one lower limb and hypoaesthesia of the other lower limb but with no dissociative sensory loss of the hypoaesthetic limb?

9. Is there more than one method of demonstrating dysdiadochokinesia in upper limbs?

10. What is the difference between kinetic and intention tremors?