cranial nerves

Question 1

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Answer 1

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Question 2

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Answer 2

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Question 3

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Answer 3

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Question 4

CN 1

Answer 4

OLFACTORY: OUR SENSE OF SMELL

EXPOSED TO THE ELEMENTS

SOLE SENSORY NERVE

ABLE TO RECOVER OR REGENERATE AFTER INJURY

Question 5

CN 2

Answer 5

Optic: Vision
Sensory
Half of the fibers decussate

Question 5

GLAUCOMA

Answer 5

vision loss/ blindness by damaging a nerve in the back of your eye
Are over age 60, especially if you’re Hispanic/Latino
Are African American and over age 40
Have a family history of glaucoma

Question 6

OPTIC NEURITIS

Answer 6

Inflammation of the optic nerve
Often affects only one eye at a time
Takes place before the chiasm

Question 7

CN 3

Answer 7

Eye movement up
Down and medially
Opening of eyelids

Question 7

SCHWANNOMA

Answer 7

Rare tumor
Growth from schwann cells
Often benign

Question 8

CN 4

Answer 8

Trochlear
Superior oblique muscles
Eyes down and inwards
Nerve also enables you to move your eyes toward your nose or away from it

Question 8

CN 5

Answer 8

Ophthalmic

Maxillary

Mandibular
Trigeminal
Facial Sensation
Mastication muscles

Question 9

CN 6

Answer 9

Abducens
Controls the movement of the lateral rectus muscle
Outward gaze

Question 9

TIC DOULOUREUX

Answer 9

chronic pain disorder
Involves sudden, severe facial pain
pressure on the trigeminal nerve
After age of 50
Not congenital

Question 10

ESTOPIA

Answer 10

Inability to move eye

Corrective lenses

Question 11

CN 7

Answer 11

Facial
Muscles of the face
Expressions
Parasympathetic fibers to several head and neck ganglia
two-thirds of the tongue via the chorda tympani.

Question 12

PALSY

Answer 12

Symptoms can vary from mild to severe. Include muscle twitching, weakness, or total loss of facial movements in some cases both sides of the face are effected.

Question 13

Bell’s palsy is linked to

Answer 13

facial nerve damage

Question 13

CN 8

Answer 13

Vestibulocochlear
Body position
Sense of hearing

Question 14

Stroke is caused by

Answer 14

a blood clot that stops blood flow to the brain/ a blood vessel that ruptures in the brain

Question 15

VESTIBULAR SCHWANNOMA

Answer 15

Build up leading from the inner ear to the brain.

Question 16

CN IX LESION

Answer 16

Glossopharyngeal nerve lesions produce difficulty swallowing
Impairment of taste over the posterior one-third of the tongue and palate
Impaired sensation over the posterior one-third of the tongue, palate, and pharynx; an absent gag reflex.
Dysfunction of the parotid gland

Question 16

CN 9

Answer 16

Glossopharyngeal
Swallowing and taste

Question 17

VAGAL SCHWANNOMA

Answer 17

Tumor that arises from the vagus nerve—the longest cranial nerve that originates in the brain stem and extends down through the neck and into the chest and abdomen.

This nerve controls involuntary processes such as the muscles of the throat and the voice box.

Question 17

CN 10

Answer 17

Vagus nerve
Supplies heart, lungs, upper digestive tract, and other organs of the chest and abdomen

Question 17

CN 11

Answer 17

Accessory
Motor control of the sternocleidomastoid and trapezius

Question 18

CN 12

Answer 18

Hypoglossal
Represent all muscles of the tongue except the palatoglossus muscle
muscles are involved in moving and manipulating the tongue

Question 18

ACCESSORY NERVE DISORDER

Answer 18

-Diminished muscle mass, fasciculations, and partial paralysis of the sternocleidomastoid and trapezius muscle

Caused by Radical neck dissection/ cervical lymph node biopsy