Neuroanatomy — Flashcards

Flashcard 31: Where is the reticular activating system located?

Answer: extends from midbrain through thalamus to cortex

Flashcard 32: How is the "homonculus" positioned on the cerebral cortex?

Answer: feet - medial face - lateral

Flashcard 33: What regions of the brain are most susceptible to ischemic injury?

Answer: hippocampus, neocortex, cerebellum, watershed areas

Flashcard 34: posterior inferior cerebellar artery (PICA)

Answer: lateral medulla, cerebellum

Extra: vomiting, vertigo, nystagmus; loss of pain/temp in limbs/face, dysphagia, hoarseness, Horner's syndrome, ataxia, dysmetria, loss of gag reflex

Flashcard 35: anterior spinal artery (ASA)

Answer: medial medulla: lateral CST, DC-ML

Extra: lower limb hemiparesis, loss of proprioception, tongue deviation

Flashcard 36: Identify number 2

Answer: interventricular foramen (of Monro)

Flashcard 37: Identify number 3

Answer: third ventricle

Flashcard 38: What is the function of the dural venous sinuses?

Answer: drain blood from cerebral veins, receive CSF from arachnoid granulations

Flashcard 39: Where is CSF reabsorbed?

Answer: arachnoid granulations

Flashcard 40: Identify number 1

Answer: lateral ventricle