Prac Test Prep Flashcards
Name the cranial nerves, in order
Olfactory Optic Oculomotor Trochlear Trigeminal Abducens Facial Vestibulocochlear Glossopharyngeal Vagus Accessory Hypoglossal
Where does the olfactory nerve originate?
Forebrain
Where does the optic nerve originate?
Forebrain
Where does the oculomotor nerve originate?
Midbrain
Where does the trochlear nerve originate?
Midbrain
Where does the trigeminal nerve originate?
Pons
Where does the abducens nerve originate?
Pons
Where does the facial nerve originate?
Pons
Where does the vestibulocochlear nerve originate?
Pons
Where does the glossopharyngeal nerve originate?
Medulla
Where does the vagus nerve originate?
Medulla
Where does the accessory nerve originate?
Medulla
Where does the hypoglossal nerve originate?
Medulla
What is the function of the olfactory nerve?
Olfaction - olfactory epithelium via olfactory bulb
What is the function of the optic nerve?
Vision
Innervates the retina
What is the function of the oculomotor nerve?
MOTOR
Movement of eyeball: superior, inferior & medial recti
Lift upper eyelid: elevator palpebral superioris
PARASYMPATHETIC
Pupillary constriction & accomodation
What is the function of the trochlear nerve?
Movement of the eyeball: superior oblique muscle
What is the function of the trigeminal nerve?
SENSORY:
General sensation to face, scalp, cranial dura mater, cornea
MOTOR:
Muscles of mastication
What is the function of the abducens nerve?
Movement of eyeball: lateral rectus muscle
What is the function of the facial nerve?
SENSORY:
Taste: anterior 2/3 of tongue
MOTOR:
Muscles of facial expression
PARASYMPATHETIC:
Salivation: salivary glands
Lacrimation: lacrimal gland
What is the function of the vestibulocochlear nerve?
SENSORY:
Position & movement of head: vestibular apparatus
Hearing: cochlear
What is the function of the glossopharyngeal nerve?
SENSORY:
General sensation & taste: pharynx, posterior 1/3 of tongue
Chemo- & baroreceptors: carotid body & sinus
MOTOR:
Swallowing
PARASYMPATHETIC:
What is the function of the vagus nerve?
SENSORY:
General sensation: pharynx, larynx, oesophagus
Chemo- & baroreceptors: aortic bodies
Visceral sensation: thoracic & abdominal viscera
MOTOR:
Speech, swallowing
PARASYMPATHETIC:
Cardiovascular system, respiratory & GIT: thoracic & abdominal viscera
What is the function of the accessory nerve?
Motor: sternomastoid & trapezius muscles
What is the function of the hypoglossal nerve?
Movement of tongue
Which nerve exits dorsal aspect of brainstem?
IV - glossopharyngeal
What is tentorium?
The extension of dura mater between occipital lobe & cerebellum
What is the tectorial notch?
Opening between tentorium & clivus: transmits brainstem
Nerve transmitted by cribriform plate
Olfactory nerve
Nerve transmitted by optic canal
Optic nerve
Nerves transmitted by superior orbital fissure
Oculomotor nerve
Trochlear nerve
Abducens nerve
Trigeminal nerve
Nerve transmitted by foramen rotundum
Trigeminal nerve (maxillary division)
Nerve transmitted by foramen ovale
Trigeminal nerve (mandibular division)
Nerve transmitted by stylomastoid foramen
Facial nerve
Nerve transmitted by internal acoustic meatus
Vestibulocochlear nerve
Facial nerve
Nerve transmitted by petrotympanic fissure
Facial nerve ==> chords tympani nerve
Nerve transmitted by jugular foramen
Glossopharyngeal nerve
Vagus nerve
Accessory nerve
Nerve transmitted by hypoglossal foramen
Hypoglossal nerve
