Brain and Neuroanatomy — Flashcards

Flashcard 281: What part of the cerebellum is concerned with vestibulo-ocular reflex?_____

Answer: Flocculonodular lobe

Flashcard 282: Types of white matter:_____ fibers: fibers passing to and from the brainstem to the cerebral cortex.

Answer: Projection

Flashcard 283: Both internal and external medullary lamina of the thalamus are sheets of _____ matter

Answer: white

Flashcard 284: The splenium of the corpus callosum is connected to the _____ cortex

Answer: striate

Flashcard 285: The largest subarachnoid cistern is the _____ cistern

Answer: cerebellomedullary

Flashcard 286: The labrynthine artery arises from which artery?_____

Answer: AICA>Basilar

Flashcard 287: Auricular branch of Vagus is also known as _____ nerve

Answer: Arnold's

Flashcard 288: How many branches are given off by the ICA in its cavernous part (C4 segment)? Which are they?

Answer: 6 branches: 1. Inferior hypophyseal artery 2. Dorsal meningeal artery 3. Tentorial artery (Artery of Bernasconi-Cassinari) 4. Inferolateral trunk (Artery of the inferior cavernous sinus) 5. McConnell's capsular arteries 6. Branch to the trigeminal ganglion (often from the meningohypophyseal trunk)

Flashcard 289: Which nucleus of the Vth nerve receives the sensations of proprioception from the muscles of mastication and from the facial and extraocular muscles?_____

Answer: Mesencephalic nucleus

Flashcard 290: Which **magnocellular** layer of the lateral geniculate nucleus (LGN) receives **ipsilateral** retinal input?

Answer: Layer 2

Extra: The Lateral Geniculate Nucleus (LGN) consists of 6 layers: - **Magnocellular (M) layers**: 1 and 2 - **Parvocellular (P) layers**: 3, 4, 5, and 6 Input distribution: - **Ipsilateral (I) input**: Layers 2, 3, and 5 - **Contralateral (C) input**: Layers 1, 4, and 6 Therefore, **Layer 2** is the only magnocellular layer that receives ipsilateral retinal input. (Layer 1 receives contralateral magnocellular input).