List the cranial nerves in order of anatomical location and

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Biology

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Jan 9, 2024

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List the cranial nerves in order of anatomical location and give a brief description of its function? 1- olfactory: controls sense of smell 2- optic: carries visual information from retina to brain 3- oculomotor: controls most eye movement 4- trochlear: feeds nerve to muscle that allows eye movement 5- trigeminal: provides sensation and movement to facial muscles 6- abducens: feeds nerves to lateral rectus 7- facial: controls muscles responsible for expressions 8- vestibulocochlear: transmits sound and balance info 9- glossopharyngeal: takes in info from tongue, middle ear, and pharynx 10- vagus: responsible for sweating, heart rate, tongue, and pharynx 11- accessory: controls some functions of neck and shoulders 12- hypoglossal: controls tongue movement for swallowing, eating, and speech Name 4 of the major regions of the adult brain and briefly identify its function? Frontal lobe- voluntary movement and expressive language Occipital lobe- distance/depth perception, color determination, face recognition Parietal lobe- taste, sensory perception, senses Temporal lobe- auditory processing, emotion processing, language Where is CSF fluid formed and name one problem that could arise if the flow is disrupted? Surrounds exposed surfaces of CNS, and one problem that could arise is Alzheimers What layers make up the meninges? 1) pia mater 2) arachnoid 3) dura mater Why can the circle of Willis maintain perfusion of the brain even if there is a blockage in one part of the structure? It is designed to act as a safety measure so in the event of blockages blood can flow backward or forward Why are ganglia and nerves not surrounded by protective structures like the meninges of the CNS?
Because they’re not in the CNS Sources: https://egcc.instructure.com/courses/39025/pages/cns-and-cranial-nerves-powerpoint? module_item_id=3662179 https://www.medicalnewstoday.com/articles/circle-of-willis#:~:text=The%20circle%20of%20Willis %20also,circle%20of%20Willis%20to%20compensate . https://www.medicinenet.com/what_are_the_12_cranial_nerves_and_their_function/article.htm
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