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The actual receptors for taste are the ___________ located within the _________.
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Light receptors in the _________ form impulses that are transmitted to the brain via the ________ nerve.
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Ch 9 A/P
ch 9
| Question | Answer |
|---|---|
| The actual receptors for taste are the ___________ located within the _________. | chemoreceptors; taste hairs |
| Light receptors in the _________ form impulses that are transmitted to the brain via the ________ nerve. | retina; optic |
| Sound stimuli are transmitted from the tympanic membrane to the oval window by the | ear ossicles. |
| In the maintenance of dynamic equilibrium, turning the head causes movement of endolymph in the _________ stimulating the hair cells of the _________ to form impulses, which are sent to the brain. | semicircular canals; crista ampullaris |
| The structure that causes your nose to "run" when you cry is the ___________. | nasolacrimal duct |
| The outer layer of the eye consists of the _______ and ________. | sclera; cornea |
| When cloudiness of the lens occurs it is referred to as ________. | a cataract |
| The space between the bony and membranous labyrinths contain ________. While the membranous labyrinth itself contains __________. | perilymph; endolymph |
| The receptors for sound stimuli are located in the | cochlea. |
| The auditory ossicles, the malleaus, incus, and stapes are located in the | middle ear. |
| _________ results when light rays are focused in front of the retina. | Nearsightedness |
| Light rays entering the eye are first bent by the ________ and finely focused on the retina by the _________. | cornea; lens |
| The ________ controls the amount of light entering the eye. | iris |
| The rods are active in ________ vision and contain the pigment ____________. | black and white; rhodopsin |
| The interpretation of sensory impulses as sensations is the function of the | cerebral cortex. |
| The _________ is the retinal area for sharpest, bright-light vision, and it contains densely packed ________. | fovea centralis; cones |
| Tears are secreted by the __________, flow across the surface of the eye, and drain into the _________ via the superior and inferior canaliculi. | lacrimal gland; lacrimal sac |
| A woman applies perfume and immediately detects the scent. But after a short time, she cannot detect the scent. Why does this occur? | Olfactory receptors have become adapted and no longer form impulses |
| Because a chemical we will smell needs to diffuse into the fluid surrounding the olfactory receptors, which of the following substances would not be able to be detected? | lipids |
| The intensity of a sensation is proportional to the ________ of impulses received by sensory areas of the cerebrum. | frequency |
| Vibrations of the perilymph produce vibrations in the ________ causing hair cells in the ________ to form impulses that the brain interprets as sound sensations. | basilar membrane; organ of Corti |
| ________ are the sensory receptors for pain. | Free nerve endings |
| Pitch of a sound wave is dependent on the ______ of the wave, while the volume is dependent on __________. | frequency; amplitude |
| The external portion of the ear which can be viewed is referred to as the | auricle |
| Chemoreceptors for taste are _________, which can only detect chemicals that are _________ in a liquid. | taste cells; dissolved |
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