Brain and Neuroanatomy — Flashcards

Flashcard 241: The area between the ACA/MCA, PCA/MCA (_____ Border Zone) and the Deep / Superficial branches of the MCA (Internal Border Zone) represent watershed zones

Answer: Cortical

Flashcard 242: The fibers from the _____ and the splenium of the corpus callosum which form the lateral wall of the inferior horn of the lateral ventricle constitute the tapetum.

Answer: trunk

Flashcard 243: Course of 3rd Nerve:Lies on the anterior surface on midbrain in between the _____ artery and the superior cerebellar artery in the interpeduncular fossa

Answer: posterior cerebral

Flashcard 244: General/Special Visceral Afferent: Cranial Nerves _____

Answer: 7,9,10

Flashcard 245: Relations of the Thalamus:Laterally, it is related to the posterior limb of the _____

Answer: internal capsule

Flashcard 246: The third order neurons of the _____-spinothalamic pathway project to somatosensory cortex

Answer: neo

Flashcard 247: Each semicircular canal has 2 ends: ampullated & non-ampullated which open into _____.

Answer: vestibule

Flashcard 248: The _____ nerve passing through the jugular foramen has a separate canal.

Answer: glossopharyngeal

Flashcard 249: On the basis of function:_____ sulcus - A sulcus that separates two areas by its lip and contains a third area in its walls

Answer: Operculated

Flashcard 250: All muscles of the tongue except the palatoglossus are supplied by the _____ nerve.

Answer: Hypoglossal (CN XII)

Extra: The palatoglossus muscle is the only muscle of the tongue NOT supplied by the hypoglossal nerve; it is supplied by the pharyngeal plexus (Vagus nerve/CN X). **Muscles of the tongue:** 1. **Intrinsic:** Superior longitudinal, inferior longitudinal, transverse, and vertical (all CN XII). 2. **Extrinsic:** Genioglossus, hyoglossus, styloglossus (all CN XII), and palatoglossus (CN X).