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Cranial nerves are primarily sensory. These nerves are directly between the brain and the brainstem and are responsible for smell, vision, eye movement, facial sensation, and the tongue movement.
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Which cranial nerves carries only sensory information?
The question is asking what three cranial nerves are purely sensory in their function. Some relevant terms here are olfactory, optic, and auditory or vestibucochlear or acoustic nerves. The only three cranial nerves that are pure sensory in function are cranial nerve #1 : the olfactory nerve (smell), cranial nerve #2 : the optic nerve (sight), and cranial nerve #8 : the auditory/vestibucochlear/acoustic nerve (hearing).
What does the fifth cranial nerve do?
Cranial nerve V. is the trigeminal nerve. It got its name after its three branches. Two of the branches are pure sensory, the third is mixed motor and sensory. In short, it gathers sensory information from the scalp, eyelids, eyes (from the cornea and conjuntiva, NOT visual information), nose, cheeks, lips, teeth, gums, oral cavity and jaw. The motor fibers innervate muscles involved in chewing and swallowing.
What do all cranial nerves control?
Cranial nerve V. is the trigeminal nerve. It got its name after its three branches. Two of the branches are pure sensory, the third is mixed motor and sensory. In short, it gathers sensory information from the scalp, eyelids, eyes (from the cornea and conjuntiva, NOT visual information), nose, cheeks, lips, teeth, gums, oral cavity and jaw. The motor fibers innervate muscles involved in chewing and swallowing.
What rhymes with you can make the world a better place?
I see pure freedom and time that ide nerve waist :)
Assess the cranial nerves?
In performing any assessment, it is best to do it in a systematic manner. It is also best to know the functions of the organs/systems you will be testing. For example, the functions of the cranial nerves, in this case. CN I - Olfactory. Not routinely tested. CN II - Optic. May use a Snellen chart or mini chart to have the patient read. Pupillary response is also tested here. CN III - Oculomotor. This is usually tested in conjunction with CN IV and CN VI by moving the eyes through the cardinal directions - start in the midline, and have the patient follow your finger with their eyes while you move it up, then down, then side to side. Any abnormality should be noted. Have the patient open his/her eyes as far as they can. They should be open wide and you should be able to see white above and below the iris. CN IV - Trochlear. Tested with CN III and VI above. CN V - Trigeminal. This is a mixed motor and sensory nerve, so you have to test both. Sensory is the corneal reflex, or the skin of the face. Motor is the muscles of mastication. Have the patient clench his/her teeth while feeling over the masseter and temporal muscles for tone and power. CN VI - Abducens. Tested with CN III and IV above. CN VII - Facial. Again, a mixed motor and sensory. Motor is the mimetic muscles, or the emotional muscles of the face. Have the patient smile, look for symmetry. Have the patient close his/her eyes tightly. Try to open them. You should not be able to easily. When you had the patient open their eyes very wide for CN III, you should have noticed if their eyebrows went up and their forehead furrowed. It should for normal CN VII function. You can test the taste on the anterior 2/3 of the tongue if you are really interested in testing the sensory function of this nerve. CN VIII - Vestibulocochlear. A pure sensory nerve. You test this by testing hearing. If you were paying attention during your CN III, IV, and VI tests, you may have noticed some nystagmus. This is normal at the very extremes of lateral gaze and for only a few beats. Any other nystagmus may point to a CN VIII abnormality. Typically, no other tests are performed for the vestibular portion of CN VIII unless there is vertigo present. CN IX - Glossopharyngeal. Testing this nerve is easy. Gag the patient. If you really want to get fancy, you can test the taste sense on the pharyngeal walls and posterior 1/3 of the tongue. Not usually done, though. CN X - Vagus. This is the motor function of the gag reflex. Also, listen to the way the patient speaks - are they hoarse or are they phonating normally? If normal, CN X is ok. Have them say, "AHHHHH" while watching their soft palate. Does it rise symmetrically? CN XI - Spinal accessory. Have the patient turn his/her head against resistance and shrug the shoulders up towards the ears. CN XII - Hypoglossal. Have the patient stick out their tongue. Is it midline? Move it side to side. This is a complete (aside from CN I) cranial nerve exam, as well as a brief explanation of what the nerves do.
Why is pure water pure?
Pure water is pure because it is pure... and because it is pure, it is pure... Got it... What sought of question is that?
Is drain cleaner pure or not pure?
It is not pure. Cleaner pure is different
What are the Three Pure Ones in Chinese mythology?
Jade Pure, Upper pure ,and Great Pure.
What names mean pure?
GirlsAgnes ... "Pure, holy." ... [75]Amala ... meaning "pure" in Sanskrit. [4]Berura ... "Pure."Bianca ... "White, pure." ... [10]Blanche ... "White, pure." ... [7]Cady ... "Pure." ... [13]Caitlin ... "Pure." ... [53]Caitrin ... "Pure." ...Caoilainn ... "Slender and white, fair or pure." ... [9]Caron ... "Pure." ... [5]Catarina ... "Pure." ... [2]Catherine ... "Pure." ... [211]Cathleen ... "Pure." ... [4]Cathy ... "Pure." ... [5]Catrice ... "Pure." ... [1]Catrin ... "Pure." ...Chasity ... "Pure." ... [10]Chastity ... "Pure." ... [15]Ekaterina ... "Pure." ... [1]Inez ... Variant of Agnes (Latin) "pure" ... [7]Kaitlin ... Irish form of Catherine (Greek) "pure" ... [14]Karen ... Short form of Katherine (Greek) "pure" ... [29]Katherine ... "Pure." ... [192]Kathleen ... Variant of Katherine (Greek) "pure" ... [26]Katrina Variant short form of Katherine (Greek) "pure" ... [20]Kitty Pet name for Katherine (Greek) "pure" ... [4]Nathifah ... "Clean, pure." [4]Rosamond ... Also (Latin) "pure rose" or "rose of the world" ... [11]Safiyah ... "Friend; pure." [2]Senga Variant of Agnes (Greek) "pure" ...Tahira ... "Virginal, pure."Trina ... such as Katrina (Greek) "pure" ... [9]Wynne ... "Fair, pure." [6]Wynstelle Blend of Wynne (Welsh) "fair, pure" and Stella (Latin) "star". [3]Wysandra Blend of Wynne (Welsh) "fair, pure" and Sandra (Greek) "man's defender". [1]Yekaterina ... Variant of Katherine (Greek) "pure" ... [1]Ynez ... Variant of Agnes (Greek) "pure". [4]Zakiya ... "Pure." [3]BoysAmal ... "Labor, hard work; pure; hope." ... [3]Candido ... "White, pure." ... [2]Catlin ... Variant of Catherine (Greek) "pure". Surname ... [3]Conley ... possibly from "connla" meaning "pure, chaste, sensible" and the personal name Aodh ...Decatur ... but might also mean "pure" ...Gower ... "Pure."Mordecai ... from "mara dachya" meaning "pure myrrh" ... [3]Tahir ... "Pure." [1]Zaki ... "Chaste, pure."
What is a homophone for pure?
pure
What is the name of the pure iron?
Pure Iron is called Pure iron.
Can you give me a sentence with pure?
How could a man as such have pure tolerance? She was not as pure as a rose. Bill was as white as a pure albino.
