USAHS Neuroscience Exam 2 with Correct Answers

USAHS Neuroscience Exam 2 with Correct Answers Anterior artery supplies - ANSWER ️️ 2/3rds of spinal cord Internal carotid and vertebral arteries are important because - ANSWER ️️ they both bring blood to the brain Anterior communicating and posterior communicating arteries - ANSWER ️️ are the bridges (of the diagram for circle of willis) What is the cranial nerve exit for olfactory nerve - ANSWER ️️ cribriform plate What is the cranial nerve exit for the optic nerve - ANSWER ️️ optic canal What is the cranial nerve exit for the oculomotor nerve - ANSWER ️️ superior orbital fissure What is the cranial nerve exit for the trochlear nerve - ANSWER ️️ superior orbital fissure How many branches does the trigeminal nerve have and what are their exits - ANSWER ️️ 3 branches: ophthalmic (superior orbital fissure) maxillary foramen (rotundum) mandibular (foramen ovale and foramen spinosum) What is the cranial nerve exit for abducens nerve - ANSWER ️️ superior orbital fissure What is the cranial nerve exit for facial nerve - ANSWER ️️ stylomastoid foramen internal acoustic meatus How many branches does the facial nerve have. What is its cranial nerve exit - ANSWER ️️ 1: greater petrosal nerve and exit is foramen lacerum