Chapter 15: Study Questions
Helps maintain the intraocular pressure; located in the anterior part of the eye. A) Lens B) Retina C) Aqueous humor D) Fovea centralis
Aqueous humor
Hair cells receptive to changes in dynamic equilibrium are found in this structure. A) Macula B) Taste buds C) Olfactory epithelium D) Crista ampullaris
Crista ampullaris
Hair cells receptive to changes in static equilibrium are found in this structure. A) Macula B) Taste buds C) Olfactory epithelium D) Crista ampullaris
Macula
Tinnitus, vertigo, and gradual hearing loss typify the disorder called ________. A) Ménière's syndrome B) conjunctivitis C) strabismus D) motion sickness
Ménière's syndrome
Chemically sensitive cilia are found in this structure. A) Macula B) Taste buds C) Olfactory epithelium D) Crista ampullaris
Olfactory epithelium
Connects the middle ear with the nasopharynx. A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane
Pharyngotympanic tube
Select the correct statement about olfaction. A) Olfactory receptors have a high degree of specificity toward a single type of chemical. B) Some of the sensation of olfaction is actually one of pain. C) Substances must be volatile and hydrophobic in order to activate olfactory receptors. D) Olfactory adaptation is only due to fading of receptor cell response.
Some of the sensation of olfaction is actually one of pain.
Chemically sensitive microvilli found in this structure. A) Macula B) Taste buds C) Olfactory epithelium D) Crista ampullaris
Taste buds
Explain why your nose runs during and immediately after a good cry.
The tears flow into the lacrimal canaliculi and then into the nasolacrimal sac. As the sac fills, the tears begin to run down the nasolacrimal duct and out your nose.
Separates external acoustic meatus from the middle ear A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane
Tympanic membrane
Contains utricle and saccule. A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane
Vestibule
Receptors for hearing are located in the ________. A) cochlea B) semicircular canals C) tympanic membrane D) vestibule
cochlea
Light passes through the following structures in which order? A) vitreous humor, lens, aqueous humor, cornea B) cornea, aqueous humor, lens, vitreous humor C) cornea, vitreous humor, lens, aqueous humor D) aqueous humor, cornea, lens, vitreous humor
cornea, aqueous humor, lens, vitreous humor
Seventy percent of all sensory receptors are located in the ________. A) eye B) ears C) skin D) nose
eye
Area of greatest visual acuity. A) Lens B) Retina C) Aqueous humor D) Fovea centralis
fovea centralis
The eye muscle that elevates and turns the eye laterally is the ________. A) lateral rectus B) superior oblique C) inferior oblique D) medial rectus
inferior oblique
What structure regulates the amount of light passing to the visual receptors of the eye? A) aqueous humor B) lens C) cornea D) iris
iris
The structure most responsible for focusing light rays that enter the eye. A) Lens B) Retina C) Aqueous humor D) Fovea centralis
lens
The elasticity of the lens decreases with age. This leads to which of the following? A) a clouding of the lenses know as a cataract B) less accommodation of the lenses and difficulty focusing on nearby objects C) less light getting to the retina and diminished visual acuity D) lowered accommodation of the pupillary reflex and blurry vision
less accommodation of the lenses and difficulty focusing on nearby object
Which of the follow types of neurons are replaced throughout adult life? A) olfactory receptor cells B) retinal bipolar cells C) retinal ganglion cells D) auditory outer and inner hair cells
olfactory receptor cells
Ear stones. A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane
otoliths
Which of the following structures is not part of the external ear? A) pinna B) external acoustic meatus C) tympanic membrane D) pharyngotympanic tube
pharyngotympanic tube
The sensory layer of the eye. A) Lens B) Retina C) Aqueous humor D) Fovea centralis
retina
Taste is solely a response to chemicals dissolved in ________.
saliva
The blind spot of the eye is caused by ________. A) more rods than cones within the retina B) the macula lutea interrupts the nerve pathway C) an absents of cones in the foveae D) there are no photoreceptors where the optic nerve leaves the eye
there are no photoreceptors where the optic nerve leaves the eye