Other Test Stuff Flashcards
What are the first two layers of the LGN made of?
Magno cells
What do magno cells process?
Movement (periphery)
Which fibers cross at the optic chiasm?
Nasal fibers
A lesion of the 1st order neuron causing Horner’s syndrome is most likely caused by what?
CVA
Where does the sympathetic 1st order neuron begin and end?
Hypothalamus
Center of Budge (C8-T2)
What is the most likely cause of a sympathetic 2nd order lesion?
Tumor Cancer TB Trauma Thyroid
What is the pathway of the sympathetic 2nd order neurons?
Center of Budge
Across apex of lung
Cervical ganglion
Along which vessel does the 3rd order sympathetic neuron to the eye travel?
Internal carotid
Where does the sympathetic 3rd order neuron path begin and end?
Cervical ganglion
In the eye via the nasociliary nerve or ophthalmic artery
What is the nucleus for the afferent pathway to the pupil?
Pretectal nucleus
What is the nucleus for the efferent pathway to the pupil?
Edinger-Westphal nucleus
Adie’s pupil and Argyll-Robertson pupils are what type of lesions, parasympathetic or sympathetic?
Parasympathetic
Argyll-Robertson pupils are often caused by what?
MS
Alcoholism
Syphillis
What are Hofstetter’s formulae?
Min: 15-(0.25)(age)
Ave: 18.5-(0.30)(age)
What is the red nucleus?
A motor nucleus for arm movement
