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Ap chap 15
The Special Senses
| Question | Answer |
|---|---|
| The cells of the retina in which action potentials are generated are the ___ | ganglion cells |
| damage to the medial recti muscles would probably affect ____ | convergence |
| the recptor for static equilibrium is the ___ | macula |
| which of the following taste sensations is incorrectly matched to the chemicals that produce it? | umami-amino acids glutamate and lysine |
| receptors for hearing are located in the___ | cochlea |
| which of the following is not a characteristic of olfactory receptor cells? | They are unipolar neurons |
| which of the following could not be seen as one looks into the eye with an ophthalmoscope? | optic chiasma |
| which statement about malnutrition induced night blindness is most accurate? | vitamin supplements can reverse degenerative changes. |
| ceruminous glands are ____ | modified taste buds |
| what is the main function of the rods in the eye? | vision in dim light |
| most newborns___ | often use only one ye at a time |
| motion sickness seems to___ | results from mismatch between visual and vestibular inputs |
| as sound levels increase in the spiral organ (of corti),____ | outer hair cells stiffen the basilar membrane |
| an essential part of the maculae involved in static equilibrium is the___ | otoliths |
| conscious perception of vision probably reflects activity in the ____ | occipital love of the cortex |
| which of the following structures is not part of the external ear? | pharyngotmpanic tube |
| information from balance receptors goes directly to the ____ | brain stem reflex centers |
| the oil component found in tears is produced by the___ | tarsal glands |
| ordinarily it is not possible to transplant tissues from one person to another yet corneas can be transplanted without tissue rejection. This is because the cornea____. | has no blood supply |
| farsightedness is more properly called___ | hyperopia |
| the first "way station" in the visual pathway from the eye , after there has been partial crossover of the fiber in the optic chiasma, is the ____ | lateral geniculate body of the thlalamus |
| the oval window is connected directly to which passageway? | scala vestibuli |
| taste buds are not found____ | in filiform papillae |
| which of the following is not a possible cause of conduction deafness? | cochlear nerve degeneration |
| which statement about sound localization is not true? | it requires processing at the cortical level |
| the receptor membranes of gustatory cells are ___ | gustatory hairs |
| which of the follow types of neurons are replaced throughout adult life? | olfactory receptor cells |
| dark adaptation ____ | involves accumulation of rhodopsin |
| the tarsal plate of the eyelid____ | is connected to the levator palpebrae |
| in t he uterus ___ | despite the fact that the fetus cannot see, functional visual cortical connections are established |
| select the correct statement about olfaction. | some of the sensation of olfaction is actually one of pain |
| the blind spot of the eye is where___ | the optic nerve leaves the eye |
| visual inputs to the ___ serve to synchronize biorhythms with natural light and dark. | suprachiasmatic nucleus |
| kthe first vestiges of eyes in the embryo are called____ | optic vesicles |
| what is modiolus? | a bone pillar in the center of th ecochlea |
| which of the following is true about light and vision? | when we see the color of the object, all light is being absorbed by that object except for the color being experienced |
| visible light fits between ___ | uv and infrared |
| olfactory cells and taste buds are normally stimulated by___ | substances in solution |
| there are three layers of neurons in the retina. The axons of which of these neuron layers form the optic nerves? | ganglion cells |
| U.S. employees must wear hearing protection at ____ db or above. | 90 |
| seventy percent of all sensory receptors are located in the____ | eye |
| light passes through the following structures in which order? | Cornea, aqueous humor, lens, vitreous humor |
| in the visual pathways to the brain, the optic radiations project to the ___ | primary visual cortex |
| what prevents the eyelids from sticking together when the eyes close? | tarsal gland secretions |
| nerve fibers from the medial aspet of each eye____ | cross over to the opposite side at the chiasma |
| tinnitus, vertigo and gradual hearing loss typify the disorder called___ | Menieres syndrome |
| which of the following is true about gustatory receptors? | complete adaptation occurs in about one to five minutes |
| which pairing of terms is incorrectly related? | frequency:loudness |
| The eye muscle that elevates and turns the eye laterally is the____ | inferior oblique |
| which of the following is true about photoreceptors? | rods absorb light throughout the visual spectrum but confer only gray tone vision |
| select the correct statement about equilibrium | cristae respond to the angular acceleration and deceleration |
| what structure regulates the amount of light passing to the visual receptors of the eye? | |
| during dark adaptation____. | rhodopsin accumulates in the rods |
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