Cranial Nerves Flashcards
What area of the brain would you call the frontal lobe
rostral
CN I is apart of the ____
telencephalon
CN II is apart of the ____
diencephalon
CN II posterior of the Optic chiasm are called
optic tract
CN II runs through the
optic canal
Which nerves controll ocular muscles
III, IV, and VI
Which nerve controls the upper eyelid
CN III
Whicj nerve control pupillary constrictors
CN III, pupillary sphincter and ciliary muscle
Name three branches of CN V
V1 - ophthalmic
V2 - maxillary
V3 - mandibular
What does CN V innervates
Muscles of Mastication Oral floor muscles tensor tymapani (middle ear) tensor veli palatini (pharyngeal) sensation of face, forehead and tounge
What inverates sensation of ant 2/3 of tounge
CN V
What are muscles of massifaction
Temporalis
masseter
Medial pterygoid
Laterial pterygoid
what forame does V3 pass through
ovale
What are branches of V2
PSA, MSA, ASA,
Infraorbital nerve
Zygomatic nerve
What are the branches of V3
Buccal
Auriculotemporal
Pterygoid and Masseteric branches
Interior Alveolar Nerve
Whatare the branches of CN VII
Temporal Zygomatic Buccal Cervical Posterior Auricular
CN VII passes through___ and ____
Exits internal acoustic meatus, main through stylomastoid foramen
CN VII innervates
all glands but paraotid
Which which nerve innervates taste of the ant 2/3 of tounge
CN VII
CN VIII innervates
Vestibular senses and Hearing
CN IX innervates motor
Pharyngeal constrictors
Stylopharyngeus
Parotid gland
Sensory of CN IX
Post tongue Post Oral pharynx Middle ear Skin of external ear, canal Teympanic membrane
Special sensory of CN IX
Taste post 1/3 of tongue
Chemo- and baroreceptors - in carotud sinues
What nerve has special pressure and chemo in aorta
CN X
What muscles does CN XI innervate
SCM and trap
What usually cause a epidural hematoma
MMA
epidural hematoma lies between
dura mater and skull
subdural hematoma lies between
duramater and arachnoid
what usually causes a subdural heatoma
bridgin veins
Subarachnoid aneurysm is between
pia andarachnoid
What causes subarachnoid aneurysm
rupture ofarteries serving the brain
