Cranial Nerves

what cranial nerves are involved with balance? 

vestiulochoclear (VIII)

what cranial nerves are used for chewing?

Trigeminal (V)

What cranial nerves are used for eye movement?

Oculomotor (III), trochlear (IV), and abducens (VI)

What cranial nerves are used for facial expressions?

Facial (VII)

What cranial nerves are used for facial sensations?

Trigeminal (V)

What cranial nerves are used for hearing?

Vestibulocochlear (VIII)

What cranial nerves are used for movement of the neck and shoulders? 

Spinal accessory (XI) 

What cranial nerves are used for movement of the tongue?

Hypoglossal (XIII)

What cranial nerves are used for parasympathetic stuff?

Oculormotor (III), Facial (VII), Glossopharyngeal (IX), and vagus (X)

What cranial nerves are used for taste?

Facial (VII), Glossopharyngeal (IX), and Vagus (X)

What cranial nerves are used for vision?

Optic (II)

What is the first cranial nerve?

Olfactory (I)

What is the second cranial nerve?

Optic (II)

What is the third cranial nerve?

Oculomotor (III)

What is the fourth cranial nerve?

Trochlear (IV) 

What is the sixth cranial nerve?

Abducens (VI)

What is the fifth cranial nerve?

Trigeminal (V)

What is the seventh cranial nerve? 

Facial (VII)

What is the eighth cranial nerve?

Vestibulocochlear (VIII)

What is the ninth cranial nerve?

Glossopharyngeal (IX)

What is the tenth cranial nerve?

Vagus (X)

What is the eleventh cranial nerve?

Spinal accessory (XI)

What is the twelfth cranial nerves? 

Hypoglossal (XII) 

anosmia

total loss of smell

hyposmia

partial loss of smell

hyperosmia

exaggerated sense of smell

dysomia

distorted sense of smell

olfactory hallucinations

associated with seizures, like the smell of burnt toast

what is the function of the olfactory nerve?

smell

what is the function of the optic nerve?

vision

what is the function of the oculomotor nerve?

voluntary eye movement (not all eye movement), keeps eyelids open.

what happens when you damage the oculomotor nerve?

Down and out eyeball, double vision, drooping eyelid, dilated fixed pupil, pupils don’t restrict

trochlear function

controls superior oblique (down and in)

how can you tell if someone has damage to their trochlear nerve?

they can’t walk down stairs

what is the function of the abducens?

lateral rectus, abducts the eye (away from the nose)

trigeminal function

general somatosensory for the head (touch, proprioception, pain and temp) and also controls mastication 

what happens if there is damage to the trigeminal nerve? 

won’t blink if cotton is rubbed on the cornea

what is the name of the cranial nerve pathway that connects eye movements? 

medial longitudinal fasciculus 

What is a way to remember MLF?

Milfs control my eye movements

facial nerve functions

muscles for facial expression, eye close (hook), taste in the front 2/3 of the tongue, salivary and tear ducts

bell’s palsy

paralysis of the face, affecting one side, due to damage of facial nerve

function of vestibulocochlear nerve

auditory and balance

vestibulo-ocular reflex (VOR)

fixation of gaze despite head movement 

what does glossopharyngeal mean

tongue throat

what is the function of the glossopharyngeal nerve

taste the back 1/3 of tongue, gag reflex, swallowing, elevates pharynx while swallowing

what does vagus translate to

wandering

what is the function of the vagus nerve?

sensory from organs, taste of epiglottis

what is the function of the spinal accessory function 

move neck and shoulders

what is the function of the hypoglossal nerve

tongue muscles

if the hypoglossal nerve is damaged and the tongue goes to the left, what side the tongue is weak? 

the left side 

what is nerve 0 thought to be?

the terminal nerve

what would the terminal nerve do?

sense pheromones