Podcast
Questions and Answers
What is the result of an injury to the dorsal tegmentum in the midbrain?
What is the result of an injury to the dorsal tegmentum in the midbrain?
- Disruption of the fibers from the pretectal nucleus to the parasympathetic third nerve nucleus (correct)
- Injury to the ventral tegmentum
- Lesion to the Edinger-Westphal nucleus
- Damage to the parasympathetic third nerve nucleus
What is the characteristic of an Argyll Robertson pupil?
What is the characteristic of an Argyll Robertson pupil?
- It is not affected by light or near response
- It responds normally to light but not to near response
- It shows a poor direct and consensual response but does constrict with near response (correct)
- It does not constrict with near response
What is the term for the phenomenon of the pupil constricting with near response but not responding to light?
What is the term for the phenomenon of the pupil constricting with near response but not responding to light?
- Pupil constriction syndrome
- Near-light dissociation
- Optic nerve damage
- Light-near dissociation (correct)
Which nucleus is affected on one side, causing an Argyll Robertson pupil?
Which nucleus is affected on one side, causing an Argyll Robertson pupil?
Where do the fibers pass through that are responsible for the near response in an Argyll Robertson pupil?
Where do the fibers pass through that are responsible for the near response in an Argyll Robertson pupil?