Cranial Nerves Flashcards
Know the Names and Roman Numerals of the Cranial Nerves….
1-O 2-O 3-O 4-To 5-Touch 6-And 7-Feel 8-Very 9-Good 10-Vagina 11-Ah 12-Heaven
The _____,______,and________ nerves are entirely sensory.
Olfactory(I), optic(III),vestibulocochlear(VIII)
Nerves I,II,and VIII are entirely _________.
Sensory
The oculomotor (III), trochlear(IV), abducens(VI), accessory(XI), and hypoglossal(XII) nerves are entirely _________.
Motor
CNs ___,____,___,___,and____ are entirely motor.
III - oculomotor IV - trochlear VI - abducens XI - accessory XII -hypoglossal
CNs V, VII, IX, and X are _______nerves.
Trigeminal, facial, glossopharyngeal, and vagus
Mixed
CNs _______,______,_______,and___________ have parasympathetic components.
III-oculomotor
VII-facial
IX-glossopharyngeal
X - vagus
The facial (VII), glossopharyngeal(IX), and vagus(X) nerves contain _______ fibers.
Taste.
CNs ______,_______,and________ contain taste fibers.
Facial (VII)
Glossopharyngeal(IX)
Vagus (X)
Olfactory Nerve (I)
Components:_______
Function:_________
Opening in skull:__________
Sensory
Olfaction (smell)
Opening of the cribiform plate of the ethmoid bone
CN II - Optic Nerve
Components:__________
Function:_________
Openings:__________
Sensory
VIsion
Optic canal
CN III - Oculomotor
Components:_________
Opening:_________
Motor AND parasympathetic
Superior orbital fissure
CN IV - Trochlear Nerve
Components:________
Opening________
Motor
Superior orbital fissure
CN V - Trigeminal Nerve
Components:_______
Openings in skull:________
Sensory and motor
Openings:
(V1)Ophthalmic division - superior orbital fissure
(V2)Maxillary division - foramen rotuntum
(V3)Mandibular division - foramen ovale
CN VI - Abducens Nerve
Components:________
Opening:_________
Motor
Superior orbital fissure
The _______ nerve has the longest p[ath through the cranial cavity, therefore it is frequently damaged by increased intracranial pressure or by fractures to the base of the skull.
Abducens
CN VII - Facial Nerve
Components:______
Openings:________
Motor, sensory, parasympathetic, taste
Internal auditory meatus, facial canal, stylomastoid foramen
CN VIII - Vestibulocochlear Nerve
Components:_______
Openings:________
Sensory
Internal auditory/acoustic meatus
CN IX - Glossopharyngeal Nerve
Components:_______
Opening:_______
Motor, general sensory, taste
Jugular foramen
CN X - Vagus Nerve
Components:_______
Openings:________
Motor, parasympathetic, sensory, taste
Jugular foramen
CN XI - Accessory Nerve
Components:_______
Openings:________
Motor
Jugular foramen
There is NO cranial root of the _______ nerve. The ‘cranial root’ is actually part of the _______ nerve.
Accessory
Vagus
CN XII - Hypoglossal Nerve
Components:_______
Openings:________
Motor
Hypoglossal canal
The hypoglossal nerve is motor to the intrinsic and extrinsic muscles of the tongue except the ___________ muscle.
Palatoglossus muscle
The abducens nerve is motor to only one muscle…which is it?
The lateral rectus muscle - turns eye laterally.
The vestibulocochlear nerve has ___ functions. To _______ and to _______.
2
Position and move the head
Hear
This nerve provides the posterior third (1/3) of taste to the tongue.
CN IX - Glossopharyngeal Nerve
The ______ nerve provides taste to the anterior 2/3 of the tongue.
Facial
The _______ nerve provides taste from the valledupar and epiglottis.
CN X - Vagus
This cranial nerve provides motor innervation to the sternocleidomastoid and trapezius muscles.
CN XI - Accessory Nerve