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how would a molecule that mimics cAMP affect an olfactory receptor
-it would increase sodium permeability
-it would open chemically-gated sodium channels
-it would depolarize the olfactory receptor
-it could trigger an afferent action potential
a patient who experienced head trauma has lost the ability to taste spicy food. you should expect damage to cranial nerve ____
all of the following are true of the fibrous tunic of the eye, except that it
produces aqueous humor
the neural tunic of the eye
-contains ganglion cells
-contains the photoreceptor cells
-contains bipolar cells
-is the deepest layer of the eyeball
which of the following descriptions best matches the term aqueous humor
excessive production may lead to glaucoma
if your vision is 20/15, this means that you can
see objects at 20 feet that individuals with normal eye sight can see at 15 feet
what structure regulates the amount of light that passes to the photoreceptors of the eye
there are three different types of cones, each one sensitive to different light energies. these cones are designated
red, green, blue
which of the following is true about rhodopsin
-called visual purple
-is bleached during photoreception
-is the visual pigment in rods
-consist of opsin + retinal
having to adjust to a dark room after walking in from bright light is because
rods exposed to strong light need time to regenerate rhodopsin
the ____ ear collects sound waves and transmits them to the ____ ear, which contains auditory ossicles
the vibrations received by the tympanic membrane are transferred to the oval window by the
when an external force bends the stereocilia of the inner ear hair cells,
there is a change in the transmembrane potential of the hair cells
the region of the ampulla that contains the receptors for rotational (dynamic) equilibrium are called
the superficial hard part of the inner ear is called the ____ and contains ____
bony labyrinth; perilymph
the energy from a pressure wave in the cochlear fluids is released by the bulging and stretching of the
the function of the auditory tube is to
equalize air pressure on both sides of the tympanic membrane
standing still in an elevator that suddenly lowers will stimulate receptors in the
utricle and saccule
perception of gravity and linear acceleration depends on
the force exerted by otoliths on hair cells of the maculae
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