Anatomy Exam 2 (?high yield?)

CN I foramen

cribiform plate of ethmoid bone

CN I innervation

olfactory epithelium

CN I name

olfactory nerve

CN II name

optic nerve

CN II foramen

optic canal

CN II innervation

retina

CN III name

oculomotor nerve

CN III foramen

superior orbital fissure

CN III innervation

4 extra-ocular muscles, levator palpebrae superioris

parasympathetic to pupil

CN IV name

trochlear nerve

CN IV foramen

superior orbital fissure

CN IV innervation

superior oblique muscle

CN V name

trigeminal nerve

CN V branches

V1 - ophthalmic

V2 - maxillary

V3 - mandibular

CN V foramen

V1 - superior orbital fissure

V2 - foramen rotundum

V3 - foramen ovale

CN V innervation

V1 - sensory to forehead, scalp, cornea, upper eyelid, nose tip

V2 - sensory to midface, upper teeth, maxillary sinus, palate

V3 - sensory to lower face, jaw, anterior 2/3 of tongue; motor to mastication muscles

CN VI name

abducens nerve

CN VI foramen

superior orbital fissure

CN VI innervation

lateral rectus muscle

CN VII name

facial nerve

CN VII foramen

internal acoustic meatus, exits totally via the stylomastoid foramen

CN VII innervation

muscles of facial expression

taste to anterior 2/3 of tongue

parasympathetic to lacrimal, submandibular, sublingual glands

CN VIII name

vestibulocochlear nerve

CN VIII foramen

internal acoustic meatus

CN VIII function

hearing and balance

CN IX name

glossopharyngeal nerve

CN IX foramen

jugular foramen

CN IX innervation

taste and sensation to posterior 1/3 of tongue

parasympathetic innervation to parotid gland

CN X name

vagus nerve

CN X foramen

jugular foramen

CN X innervation

motor to pharynx, larynx

sensory to external ear

parasympathetic to thoracic/abdominal organs

CN XI name

spinal accessory nerve

CN XI foramen

jugular foramen descending , foramen magnum ascending

CN XI innervation

sternocleidomastoid and trapezius

CN XII name

hypoglossal nerve

CN XII foramen

hypoglossal canal

CN XII innervation

intrinsic and extrinsic muscles of the tongue

What goes through the jugular foramen?

CN IX (gp) , X Vagus , XI ACC, jugular vein

What goes through the foramen ovale?

V3 mandibular nerve

What goes through the internal acoustic meatus?

CN VII, VIII

What goes through the optic canal?

CN II, ophthalmic artery

anterior cerebral arteries

anterior communicating artery

internal carotid arteries

middle cerebral arteries

posterior cerebral arteries

posterior communicating arteries

basilar artery

vertebral arteries

What does the internal carotid artery supply (overall)?

brain and eyes

What does the external carotid artery supply (overall)?

face, scale

What is the function of the dural venous sinuses?

collects venous blood from the brain, face and orbit

drain ultimately into internal jugular vein

between periosteal and meningeal layers of dura mater

location of superior sagittal sinus

upper border of falx cerebri

superior sagittal sinus drains into ...

confluence of sinuses

location of inferior sagittal sinus

lower border of falx cerebri

the inferior sagittal sinus drains into ...

straight sinus

location of straight sinus

junction of falx cerebri and tentorum cerebelli

the straight sinus drains into ...

confluence of sinuses

location of transverse sinuses

along tentorium cerebelli

the transverse sinuses drain into ...

sigmoid sinuses

location of sigmoid sinuses

posterior cranial fossa

the sigmoid sinuses drain into ...

internal jugular vein

location of cavernous sinus

lateral to sella turcica

the cavernous sinus drains into ...

superior and inferior petrosal sinuses

location of petrosal sinuses

along petrous part of temporal bone

the petrosal sinuses drain into ...

sigmoid sinus

internal jugular vein

what cranial nerve innervates the pharynx? what muscle is the exception?

CN X - vagus

exception - stylopharyngeus

What nerve innervates the stylopharyngeus?

CN IX - glossopharyngeal

What nerve innervates the larynx?

left recurrent laryngeal nerve

What is the function of both the larynx and pharynx?

swallowing and speech functions

pharynx location

larynx location

what nerve innervates the facial muscles?

CN VII - facial nerve

What is the function of the orbicularis oculi

closes the eye

What is the function of the orbicularis oris

puckers lip

What is the function of the buccinator

compresses cheeks

What clinical correlation can be linked to damage to CN VII?

Bell's palsy

What cranial nerve innervates the muscles of mastication?

V3 - mandibular nerve

What are the muscles of mastication?

masseter, temporalis, medial pterygoid, lateral pterygoid

frontal bone

temporal bone

sphenoid bone

occipital bone

ethmoid bone

zygomatic bone

pterion

thin spot where the middle meningeal artery runs

risk for trauma

What is included in the carotid sheath?

common carotid artery

internal jugular vein

vagus nerve

frontal lobe function

motor, executive function

speech - Brocha's area

parietal lobe function

sensory integration

spatial awareness

temporal lobe function

hearing

memory

language - Wernicke's area

occipital lobe function

vision

function of the thalamus

Relay station for sensory information (except olfaction)

What cranial nerves come from the midbrain?

CN III - oculomotor nerve

CN IV - trochlear nerve

What cranial nerves come from the pons?

CN V - trigeminal nerve

CN VI - abducens nerve

CN VII - facial nerve

CN VIII - vestibulocochlear nerve

What cranial nerves come from the medulla?

CN IX - glossopharyngeal nerve

CN X - vagus nerve

CN XI - spinal accessory nerve

CN XII - hypoglossal nerve

What is the function of the cerebellum?

voluntary movement

balance

What disorder is caused from an obstruction in the ventricles of the brain?

hydrocephalus

Where is an epidural hemorrhage?

between skull and dura mater

What artery is responsible for an epidural hemorrhage?

middle meningeal artery

Where is a subdural hemorrhage?

between the dura and arachnoid mater