Neuroanatomy — Flashcards

Flashcard 541: Corticotropin-releasing hormone (CRH) is secreted by cells of the _____ nuclei of the hypothalamus

Answer: paraventricular

Flashcard 542: Which reflex is mediated by CN V3 (afferent and efferent)? _____

Answer: Jaw jerk reflex

Flashcard 543: Which spinal cord level is characterized by large ventral horns and a high ratio of gray matter to white matter?

Answer: Lumbar

Flashcard 544: Which cranial nerve arises from the dorsal aspect of the midbrain?

Answer: Trochlear nerve (CN IV)

Extra: The trochlear nerve (CN IV) is the only cranial nerve to emerge from the dorsal aspect of the brainstem (specifically the midbrain, just below the inferior colliculus).

Flashcard 545: Which wedge-shaped gyrus on the medial surface of the occipital lobe is bounded by the parieto-occipital sulcus superiorly and the calcarine sulcus inferiorly?

Answer: Cuneus gyrus

Flashcard 546: Which cranial nerve (and branch) is responsible for the efferent limb of the corneal reflex? _____

Answer: Bilateral CN VII (temporal br. via orbicularis oculi)

Flashcard 547: Uncal herniation involves displacement of the medial temporal lobe (uncus) under the _____

Answer: tentorium cerebelli

Flashcard 548: What is the destination of the lateral geniculate body (LGB) of the thalamus? _____

Answer: Primary visual cortex (calcarine sulcus)

Flashcard 549: Which cranial nerve provides somatosensation to the anterior 2/3rds of the tongue? _____

Answer: Mandibular branch of trigeminal (V3) (specific)

Flashcard 550: The neuronal cell bodies of the ventral roots of spinal nerves are found in the _____ of the spinal cord

Answer: ventral horn