The portion of the fibrous layer that is white and opaque is the
a. Choroid
b. Cornea
c. Retina
d. Sclera

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The portion of the fibrous layer that is white and opaque is the
a. Choroid
b. Cornea
c. Retina
d. Sclera
Olfactory nerve filaments are found
a. In the optic bulbs
b. Passing through the cribriform plate of the ethmoid bone
c. In the optic tracts
d. In the olfactory cortex
Which sequence best describes a normal route for the flow of tears from the eyes into the nasal cavity?
a. Lacrimal canaliculi, lacrimal sacs, nasolacrimal ducts
b. Lacrimal ducts, lacrimal canaliculi, nasolacrimal ducts
c. Nasolacrimal ducts, lacrimal canaliculi, lacrimal sacs
Of the neurons in the retina, the axons of which of these form the optic nerve?
a. Bipolar cells
b. Ganglion cells
c. Cone cells
d. Horizontal cells
Which of the following statements does not correctly describe the spiral organ?
a. Sounds of high frequency stimulate hair cells at the basal end.
b. The 'hairs' of the receptor cells are embedded in the tectorial membrane.
c. The basilar membrane acts as a resonator.
d. The more numerous outer hair cells are largely responsible for our perception of sound.