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33 Cards in this Set
- Front
- Back
What is CN 1 called? What is its main function?
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Olfactory Nerve
smell |
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What is CN 2 called? What is its main function?
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Optic nerve
vision |
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What is CN 3 called? What is its main function?
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oculomotor nerve
eye movement |
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Wat is CN 4 called? What is its main function?
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Trochlear nerve
eye movement |
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What is CN 5 called? What is its main function?
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trigeminal nerve
facial sensation |
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What is CN 6 called? what is its main function?
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abducens nerve
eye movement |
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What is CN 7 called? what is its main function?
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facial nerve
facial movement |
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What is CN 8 called? what is its main function?
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auditory nerve
hearing and balance |
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What is CN 9 called? what is its main function?
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glossopharyngeal nerve
organs and taste |
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What is CN 10 called? what is its main function?
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vagus nerve
organs and taste |
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What is CN 11 called? what is its main function?
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accessory nerve
shoulder shrug and head turn |
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What is CN 12 called? what is its main function?
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hypoglossal nerve
tongue movement |
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It courses along the base of the frontal lobes and perforates through the base of the skull and rests insie the roof of the nose. Are potentially useful for involvement in harvest of naturally existing stem cells.
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Olfactory nerve- CN1
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The sight/light/vision is reflected from the object through the lens of the eye and focused onto the retina (nerve cells in the back of the eye). From here, the information is taken through this nerve and eventually into the back of the brain in a region called the occipital lobe.
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optic nerve
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Before the vision information reaches the brain, the signal from the eyes crosses in a part of the optic nerve called the __________. The result of this is that the right visual field is seen by the ____ occipital lobe and vice versa.
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optic chiasm
left |
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(1)Together, these cranial nerves move the eyes in many directions.
(2) which nerve is the most diverse- responsible for moving the eyes towards the nose, up, down, and external rotation? |
1. oculomotor, trochlear, and abducens
2. oculomotor |
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This cranial nerve is responsiblefor shrinking the size of the pupil and allowing less light to enter the eye.
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oculomotor
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A problem with this nerve might result in double vision when looking at near objects and cause trouble when reading.
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oculomotor
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This nerve is responsible for internal rotation of the eye.
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trochlear
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A problem with this nerve is often noticed by the patient when they have trouble walking down stairs
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trochlear
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This nerve is responsible for moving each eye temporarily or away from the nose
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abducens
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A problem with this nerve results in double vision looking at distant objects
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abducens
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This is one of the largest cranial nerves. It has many functions- the entire sensation from the face, foreahead, cheeks, and jaw are returned to the brain from the three different divisions of this nerve.
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trigeminal nerve
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This nerve is responsible for moving the muscles of the face- smile, raise eyebrows, wrinkle forehead, puff cheeks, straighten neck muscles, wiggle ears.
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Facial nerve
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The taste sensation from the front 2/3 of the tongue is transmitted to the brain from this nerve.
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facial nerve
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Parts of htis nerve aids in allowing salivary glands to secrete their fluid to assist in chewing and digestion.
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facial nerve
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Another name for this nerve is the vestibulo-cochlear nerve- the sound information is transmitted through the cochlear portion of the nerve. Balance information is transmitted through the vesibular portion of the nerve.
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auditory nerve
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The Acoustic Neuroma benign tumor arises from this nerve. It is actually not a nerve tumor.
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Auditory
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These two nerves take to and from the brain information regarding swallowing, taste, voice, organ function, heart rate, abdominal function, etc.
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glossopharyngeal and vagus nerves
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This nerve starts from the brain and is continuous all the way through and reaches the intestines.
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vagus
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This nerve can serve as a conduit through which to treat epilepsy or seizures. A neurosurgeon surgically wraps an electrode around the nerve and connects it to a pacemaker device.
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vagus
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Responsible for turning the head, nodding yes and no, and shrugging the shoulders. Controls the sternocleidomastoid and trapezius. The reason why turning the head is preserved in patients w/ spinal cord injuries.
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accessory nerve
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Responsible for the complex movements of the tongue. 3 of the 4 main tongue muscles are controlled by this nerve (the vagus nerve also helps).
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hypoglossal nerve
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