Neuroanatomy — Flashcards

Flashcard 311: If the lesion in Brown-Sequard syndrome occurs above T1, patients may present with _____-lateral Horner syndrome (due hypothalamospinal pathway damage)

Answer: ipsi

Flashcard 312: Putamen and globus pallidus = _____

Answer: lentiform nucleus

Flashcard 313: Lateral medullary (Wallenberg) syndrome is typically caused by occlusion of the _____ artery

Answer: posterior inferior cerebellar

Flashcard 314: Achilles reflex = _____

Answer: S1

Flashcard 315: Dandy-Walker malformation presents as a massively dilated _____ and an absent _____

Answer: 4th ventricle

Extra: Dandy-Walker malformation triad: 1. Agenesis or hypoplasia of the cerebellar vermis. 2. Cystic dilation of the 4th ventricle. 3. Enlargement of the posterior fossa.

Flashcard 316: Lesions to CN III (oculomotor) result in ptosis and a "_____" gaze

Answer: down and out

Flashcard 317: _____ herniation involves displacement of the temporal lobe uncus under the tentorium cerebelli

Answer: Uncal (transtentorial)

Flashcard 318: The **abducens nucleus** (stimulated by the PPRF) sends axons that course within the contralateral MLF to reach the _____ nucleus

Answer: oculomotor

Flashcard 319: Parasympathetic output = _____ CN III Oculomotor output = _____ CN III

Answer: peripheral

Flashcard 320: What visual deficit results from lesion of the optic nerve just outside the optic chiasm (e.g. medially expanding ICA aneurysm)?_____

Answer: Ipsilateral nasal hemianopia