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USAHS Neuroscience Exam 3 – Questions & Answers
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USAHS Neuroscience Exam 3 – Questions & Answers
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USAHS Neuroscience Exam 3 – Questions & AnswersWhat is the cranial nerve exit for olfactory nerve? ✔️Ans - Cribriform
plate
What is the cranial nerve exit for the optic nerve? ✔️Ans - Optic canal
What is the cranial nerve exit for the oculomotor nerve? ✔️Ans -
Superior orbital fissure
What is the cranial nerve exit for trochlear nerve? ✔️Ans - Superior
orbital fissure
How many branches does the trigeminal nerve have and what are their
exits? ✔️Ans - a. 3
b. Ophthalmic - superior orbital fissure
c. Maxillary foramen- rotundum
d. Mandibular - foramen ovale and foramen spinosum
What is the cranial nerve exit for abducens? ✔️Ans - Superior orbital
fissure
What is the cranial nerve exit for facial nerve? ✔️Ans - Stylomastoid
foramen and internal acoustic meatus
How many branches does the facial nerve have? What is the nerve exit?
✔️Ans - Greater petrosal nerve- foramen lacerum
What is the cranial nerve exit for vestibulocochlear? ✔️Ans - internal
acoustic meatus
What is the cranial nerve exit for glossopharyngeal and what is tis branch
and exit? ✔️Ans - a. Jugular foramen
b. Branch is lesser petrosal
c. Exit- comes out of foramen ovale
Exit for vagus cranial nerve? ✔️Ans - Jugular foramen
, Exit for accessory cranial nerve? ✔️Ans - Jugular foramen
Exit for hypoglossal cranial nerve? ✔️Ans - Hypoglossal canal
Where does the light enter through? ✔️Ans - lens
Once light enters through the lens it goes to the what? ✔️Ans - retina
What is the central fixation for each eye w the highest visual acuity?
✔️Ans - fovea
This surrounds the fovea and also has a relatively high visual acuity?
✔️Ans - macula
This area is formed by axons leaving the retina and has no photoreceptors
✔️Ans - optic disc
15 degs lateral temporal is known as your what? ✔️Ans - blind spot
What are the 3 layers of the retina? ✔️Ans - outmost layer
biplor layer
innermost layer
What layer contains rods and cones? ✔️Ans - outermost
Do rods or cones provide low resolution visual images? ✔️Ans - rods
Are there more rods or cones? ✔️Ans - rods
Which one does not detect color? ✔️Ans - rods
Are rods or are cones located more periphery in the retina? ✔️Ans - rods
Are rods or are cones located in the fovea and macula? ✔️Ans - cones
Are rods or are cones high resolution visual images? ✔️Ans - cones
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