Neuroanatomy — Flashcards

Flashcard 461: The medial lemniscus is initially positioned _____ (medially or laterally) in the caudal medulla

Answer: medially

Flashcard 462: Which spinal cord level contains mostly gray matter (relative to white matter)? _____

Answer: Sacral

Flashcard 463: Which descending motor tract is responsible for voluntary movement of the limbs and decussates at the medullary pyramids?

Answer: Lateral corticospinal tract

Flashcard 464: What is the destination of the ventral posterolateral (VPL) nucleus of the thalamus? _____

Answer: Primary somatosensory cortex

Flashcard 465: Identify the spinal cord level characterized by a small overall diameter, a high ratio of gray matter to white matter, and large ventral and dorsal horns:

Answer: Sacral

Flashcard 466: Meningiomas most often occur near surfaces of the brain, especially _____ regions

Answer: parasagittal

Flashcard 467: Thyrotropin-releasing hormone (TRH) is secreted by the _____ nuclei of the hypothalamus

Answer: paraventricular

Flashcard 468: 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 469: The motor/sensory areas corresponding to the upper limbs are located in the _____ aspects (medial or lateral) of the pre-/post-central gyri

Answer: lateral

Flashcard 470: The major outflow from the cerebellum travels in the _____ peduncle

Answer: superior cerebellar