Neuroanatomy — Flashcards

Flashcard 451: At the end of each semicircular canal (ampulla) are _____ cells, which act as receptors

Answer: hair

Flashcard 452: Identify the motor speech area located in the inferior frontal gyrus (Brodmann areas 44 and 45).

Answer: Broca's area

Flashcard 453: The _____ of the reticular formation is a collection of nuclei surrounding the cerebral aqueduct in the midbrain

Answer: periaqueductal (central) gray

Flashcard 454: The closer a destructive axon lesion is to the neuronal _____, the more likely the neuron is to die

Answer: cell body

Flashcard 455: Which Brodmann area corresponds to the **Frontal eye field**?

Answer: Brodmann area 8

Extra: The frontal eye field (FEF) is located in the posterior part of the middle frontal gyrus. It is responsible for voluntary (saccadic) eye movements to the contralateral side. Destructive lesions to this area result in the eyes deviating toward the side of the lesion ("looking at the lesion").

Flashcard 456: Meningiomas most often occur near surfaces of the brain, especially _____ regions

Answer: parasagittal

Flashcard 457: The 3rd-order neuron of the dorsal column-medial lemniscal tract travels to the _____

Answer: primary somatosensory cortex (postcentral gyrus)

Flashcard 458: What is the destination of the ventral posterolateral (VPL) nucleus of the thalamus? _____

Answer: Primary somatosensory cortex

Flashcard 459: Which spinal cord level contains mostly gray matter (relative to white matter)? _____

Answer: Sacral

Flashcard 460: The medial lemniscus is initially positioned _____ (medially or laterally) in the caudal medulla

Answer: medially