Chapter 15 The Special Senses

24 July 2022
4.7 (114 reviews)
49 test answers

Unlock all answers in this set

Unlock answers (45)
question
Which of the following is a role of the vitreous humor?
answer
It supports the posterior surface of the lens
question
The final step in perceiving sound is __________.
answer
the auditory cortex is stimulated
question
Which of the following is TRUE of receptors for dynamic equilibrium?
answer
The receptors for dynamic equilibrium respond to rotational forces.
question
Which middle ear ossicle is attached to, and transmits vibratory motion to, the oval window?
answer
stapes
question
Identify the choroid layer. Select from letters A-D.
Identify the choroid layer. Select from letters A-D.
answer
B
question
Identify the layer that contains both a single-celled pigmented layer and a neural layer. Select from choices A-D.
Identify the layer that contains both a single-celled pigmented layer and a neural layer. Select from choices A-D.
answer
C
question
What term means that the lens can change shape so that the eye can focus on items either close at hand or far away?
What term means that the lens can change shape so that the eye can focus on items either close at hand or far away?
answer
accommodation
question
What condition results when distant objects focus in front of the retina, rather than on it?
What condition results when distant objects focus in front of the retina, rather than on it?
answer
myopia
question
The major function of the conjunctiva is to __________.
answer
produce mucus to prevent the eyes from drying out
question
The visible colored portion of the eye is the __________.
answer
iris
question
Choose the correctly paired terms.
answer
nyctalopia: night blindness
question
Which accessory eye structures function to produce the tears that cleanse and protect the eye?
answer
lacrimal glands
question
Which structure in the eye provides nutrition to all eye layers?
answer
choroid
question
What part of the eye constitutes the blind spot?
answer
optic disc
question
Which photoreceptors respond to very dim light?
answer
rods
question
What is the main function of the rods in the eye?
answer
vision in dim light
question
What structure regulates the amount of light passing to the visual receptors of the eye?
answer
Iris
question
Farsightedness is more properly called ________.
answer
hyperopia
question
Which of the following is true about light and vision?
answer
When we see the color of an object, all light is being absorbed by that object except for the color being experienced.
question
Light passes through the following structures in which order?
answer
cornea, aqueous humor, lens, vitreous humor
question
The optic disc is the location where the optic nerve leaves the eyeball. T or F
answer
True
question
The bending of light rays is called reflection T or F
answer
False
question
The neural layer of the retina prevents excessive scattering of light within the eye.
answer
False
question
The function of the lens of the eye is to allow precise focusing of light on the retina.
answer
True
question
Identify the cells embedded in the nasal epithelium. Select from choices A-D.
Identify the cells embedded in the nasal epithelium. Select from choices A-D.
answer
D
question
The receptors for smell are activated when __________.
answer
dissolved odorants bind to receptor proteins in the cilium membranes
question
Most taste buds are located __________.
answer
on the tongue
question
Olfactory cells and taste buds are normally stimulated by ________.
answer
substances in solution
question
Which region of the ear houses perilymph and endolymph? Select from choices A-D.
Which region of the ear houses perilymph and endolymph? Select from choices A-D.
answer
C- Internal ear
question
Which region of the ear is involved in detection of both hearing and equilibrium? Select from choices A-D.
Which region of the ear is involved in detection of both hearing and equilibrium? Select from choices A-D.
answer
C- Internal ear
question
Which region houses the auditory ossicles? Select from choices A-D.
Which region houses the auditory ossicles? Select from choices A-D.
answer
B-Middle ear
question
Damage to which of these structures can result in sensorineural deafness? Select from choices A-D.
Damage to which of these structures can result in sensorineural deafness? Select from choices A-D.
answer
D
question
Otosclerosis of which of these structures can result in conduction deafness? Select from choices A-D.
Otosclerosis of which of these structures can result in conduction deafness? Select from choices A-D.
answer
A
question
What part of the inner ear houses the receptor organ of hearing, the spiral organ (organ of Corti)? Select from choices A-D.
What part of the inner ear houses the receptor organ of hearing, the spiral organ (organ of Corti)? Select from choices A-D.
answer
D
question
Which part of the inner ear houses receptors for angular (rotational) movement of the head? Select from choices A-D.
Which part of the inner ear houses receptors for angular (rotational) movement of the head? Select from choices A-D.
answer
A
question
Name the structure represented by (1).
Name the structure represented by (1).
answer
tympanic membrane
question
Identify the function of (2) in this image.
Identify the function of (2) in this image.
answer
The auditory ossicles vibrate with sound waves and amplify the pressure within the middle ear.
question
The receptor organ for hearing is the __________.
answer
spiral organ of corti
question
Houses the spiral organ (of Corti.)
answer
cochlear duct
question
receptor organ for hearing
answer
spiral organ of corti
question
The central part of the bony labyrinth
answer
vestibule
question
A membrane that transmits sound vibrations to the auditory ossicles.
answer
Tympanic Membrane
question
The receptor for static equilibrium is the ________.
answer
macula
question
The structure that allows equalization of the pressure in the middle ear with that outside the body is the external auditory meatus. T or F
answer
False
question
In order for sound to reach the spiral organ (of Corti), the auditory ossicles must vibrate the oval window and set the perilymph and endolymph in motion. T or F
answer
True
question
Hair cells receptive to changes in static equilibrium are found in this structure.
answer
Macula
question
Chemically sensitive cilia are found in this structure.
answer
Olfactory epithelium
question
Hair cells receptive to changes in dynamic equilibrium are found in this structure.
answer
Crista ampullaris
question
Chemically sensitive microvilli found in this structure.
answer
Taste buds