Neuroanatomy — Flashcards

Flashcard 341: CNS infarcts associated with damage to the vestibular portion of CN VIII is more commonly associated with _____ lesions

Answer: lateral medullary

Flashcard 342: Which nucleus mediates pain and temperature sensation from the face?

Answer: Spinal trigeminal nucleus

Flashcard 343: What structure in the medulla separates CN IX and X from CN XII? _____

Answer: Olive

Flashcard 344: Which dopaminergic pathway connects the arcuate nucleus (hypothalamus) to the pituitary? _____

Answer: Tuberoinfundibular pathway

Flashcard 345: What visual deficit results from lesion of Baum's Loop (dorsal optic radiation) (e.g. parietal lesion, MCA occlusion)? _____

Answer: Contralateral homonymous inferior quadrantanopia ("Pie on the floor")

Flashcard 346: Amyotrophic lateral sclerosis (ALS) typically begins at _____ levels of the spinal cord

Answer: cervical

Flashcard 347: In cases of severe neuronal damage (ex. herniation / diffuse axonal injury) below the red nucleus, patients can present with _____ motor posturing

Answer: decerebrate

Flashcard 348: What white matter tract connects Broca's area and Wernicke's area?

Answer: Arcuate fasciculus

Extra: The arcuate fasciculus is a bundle of axons that connects Broca's area and Wernicke's area. Lesions to this tract result in **conduction aphasia** (characterized by poor repetition but relatively preserved comprehension and speech production).

Flashcard 349: Where are the central chemoreceptors located?_____

Answer: Medulla

Flashcard 350: What is the destination of the ventral anterior (VA) / ventral lateral (VL) nuclei of the thalamus? _____

Answer: Premotor and primary motor cortex