Question: What structure changes the shape of the lens for far and near vision?
Answer Choices: aqueous humor
ciliary body
extrinsic eye muscles
iris
None, because the lens is rigid.
Answer: B – ciliary body
Question: All of the following are true of the fibrous tunic of the eye, except that it
Answer Choices: provides mechanical support and some protection for the eye.
is where extrinsic eye muscles insert.
contributes substantial focusing power.
consists of the sclera, limbus, and cornea.
produces aqueous humor.
Answer: E – produces aqueous humor
Question: The function of gustatory receptors parallels that of
Answer Choices: Meissner corpuscles.
mechanoreceptors in the ear.
light receptors in the eye.
lamellated corpuscles.
olfactory receptors.
Answer: E – olfactory receptors
Question: Taste receptors are distributed in which of the following places?
Answer Choices: portions of the larynx
portions of the pharynx
surface of the tongue
anterior tip of the tongue
All of the answers are correct.
Answer: E – All of the answers are correct
Question: Movement of the endolymph in the semicircular canals
Answer Choices: signals body position with respect to gravity.
allows us to hear low tones.
signals linear acceleration.
produces a rushing sound.
signals rotational movements.
Answer: E – signals rotational movements
Question: Sound waves are converted into mechanical movements by the
Answer Choices: cochlea.
auditory ossicles.
tympanic membrane.
round window.
oval window.
Answer: C – tympanic membrane
Question: The part of the eye that determines eye color is the
Answer Choices: cornea.
iris.
canal of Schlemm.
pupil.
conjunctiva.
Answer: B – iris
Question: The human lens focuses light on the photoreceptor cells by
Answer Choices: changing shape.
opening and closing.
moving in and out.
dilating and constricting.
moving up and down.
Answer: A – changing shape
Question: The ____ ear collects sound waves and transmits them to the ____ ear, which contains auditory ossicles
Answer Choices: outer; middle
inner; middle
middle; inner
outer; inner
either B or D
Answer: A – outer; middle
Question: Which of the following description applies to the term myopia?
Answer Choices: nearsightedness
normal vision
astigmatism
farsightedness
age-related decline in accommodation
Answer: A – nearsightedness
Question: Which of the following descriptions best matches the term otoliths?
Answer Choices: bending these produces receptor potential in hair cells
move up and down when the stapes moves back and forth
seal the oval window
transmit movement of the tympanic membrane to the inner ear
tiny weights necessary for the static sense of equilibrium
Answer: E – tiny weights necessary for the static sense of equilibrium
Question: Which of the following is a function of tears?
Answer Choices: provide oxygen
wash away debris
nourish the cornea and conjunctiva
lubricate the eye
All of the answers are correct.
Answer: E – All of the answers are correct
Question: The senses of equilibrium and hearing are provided by receptors in the
Answer Choices: membranous endolymph.
perilymph.
inner ear.
bony labyrinth.
organ of Schlemm.
Answer: C – inner ear
Question: Gravity and linear acceleration are sensed in the
Answer Choices: saccule and utricle.
statoconia.
organ of Corti.
cochlea.
semicircular canals.
Answer: A – saccule and utricle
Question: Olfactory receptors send axons through the cribriform plate. They synapse on neurons in the
Answer Choices: olfactory tract.
olfactory bulb.
medial geniculate.
cerebral cortex.
medulla oblongata.
Answer: B – olfactory bulb
Question: Which of the following is true of the vascular tunic of the eye?
Answer Choices: controls the shape of the lens
regulates the amount of light entering the eye
provides a route for blood vessels and lymphatics that supply tissues of the eye
secretes and reabsorbs the aqueous humor
All of the answers are correct.
Answer: E – All of the answers are correct