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Chapter 8: Special Senses
This activity contains 20 questions.
Regarding visual fields of the eyes and the visual pathway to the brain, which of the following statements is/are FALSE?
Each optic tract contains fibers from the lateral side of the eye on the same side and the medial side of the opposite eye.
Each side of the brain receives visual input from both eyes, from the medial field of vision of the eye on its own side and from the lateral field of the other eye.
At the optic chiasma, the fibers from the medial side of each eye cross over to the opposite side of the brain.
a and c.
b and c.
Focusing the light rays involves which of the following?
Change in the shape of the lens.
Change in the relative position of the lens.
Change in the shape of the cornea.
Change in the density of the aqueous humor.
Change in the location of the optic disc.
A delicate membrane that lines the eyelids and covers the part of the outer surface of the eyeball is called the:
The area of the retina containing only cone cells is the:
The optic disc AND the blind spot.
The auditory (or Eustachian) tube is located between the:
throat and middle ear.
throat and trachea.
throat and larynx.
throat and inner ear.
middle ear and inner ear.
The conduction of a sound vibration from the middle ear to the inner ear is created by the vibration of the:
malleus against the tympanic membrane.
stapes in the oval window.
incus in the round window.
stapes in the round window.
stapes against the tympanic membrane.
The crista ampullaris detects ___________________.
sound waves and converts them into nerve impulses.
static equilibrium information.
the energy flow in the mitochondria.
dynamic equilibrium information.
BOTH sound waves and converts them into nerve impulses AND the energy flow in the mitochondria.
The malleus, incus, and stapes:
are located in the inner ear.
are surrounded by perilymph.
are parts of the organ of Corti.
form a bridge between the tympanic membrane (or eardrum) and the oval window.
are located in the inner ear AND surrounded by perilymph.
The olfactory cells are:
located in the taste buds.
specialized to respond to taste.
found on the basilar membrane.
ciliated neuroepithelial cells.
are located in the taste buds AND specialized to respond to taste.
The optic disc marks the:
exit of the optic nerve, N II.
most optically sensitive point of the retina.
junction between the iris and the ciliary body.
the region in the retina where the ganglion cells are located.
the latest recording techniques on CDs.
The outer ear consists of:
(1) the pinna
(2) the auditory tube
(3) the external auditory canal
(4) the tympanic membrane
All of the above are parts of the outer ear.
Only options (1), (3), and (4) above are correct.
Only options (1), (2), and (4) above are correct.
Only options (1) and (3) above are correct.
Only option (1) above is correct.
The outer white layer of the eyeball that is also called the fibrous tunic is the _________.
The photoreceptors in the eye are found in the:
The sensory hair cells of the organ of Corti are located on the:
The specific ear structure responsible for providing constant information of head position (static equilibrium) is/are the:
organ of Corti.
The structure that is connected to the stapes and allows the transduction of sound waves to the organ of Corti is the:
The tip of the tongue is very sensitive to which taste sensation(s)?
Both sweet AND salty are correct.
The transparent anterior portion of the sclera is the:
When a bright light shines in the eye, what reflex response takes place?
Ciliary bodies secrete tears.
Extrinsic eye muscles contract.
Radial muscles of the iris contract.
Ciliary muscles contract.
Circular muscles of the iris contract.
Where are the taste buds located that are the most sensitive to sour substances?
At the tip of the tongue.
At the sides of the tip of the tongue.
On the posterior lateral edges of the tongue.
All over the surface of the tongue.
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