Question 1

In the visual pathway information is sent from the photoreceptor cells in the retina directly to the ganglion cells.

Accepted Answer

A) True 
 B)False

Question 2

Each ommatidium of the compound eye of an insect has a biconvex lens and a ____, which help focus light onto photoreceptor cells known as ____.

Accepted Answer

A)  crystalline cone; retinular cells 
B)  facet; ocelli 
C)  rhabdome; cones 
D)  sclera; rods 
E)  cornea; rhodopsins 
A)  crystalline cone; retinular cells 
B)  facet; ocelli 
C)  rhabdome; cones 
D)  sclera; rods 
E)  cornea; rhodopsins

Question 3

Which three types of proprioceptors are stimulated when you ride a bicycle?

Accepted Answer

A)  muscle spindles, mechanoreceptors, and thermoreceptors 
B)  mechanoreceptors, interoceptors, and lateral line organs 
C)  muscle spindles, Golgi tendon organs, and joint receptors 
D)  lateral line organs, Golgi tendon organs, and mechanoreceptors 
E)  interoceptors, joint receptors, and lateral line organs 
A)  muscle spindles, mechanoreceptors, and thermoreceptors 
B)  mechanoreceptors, interoceptors, and lateral line organs 
C)  muscle spindles, Golgi tendon organs, and joint receptors 
D)  lateral line organs, Golgi tendon organs, and mechanoreceptors 
E)  interoceptors, joint receptors, and lateral line organs

Question 4

Pit vipers and boas locate their prey using:

Accepted Answer

A)  electroreceptors. 
B)  thermoreceptors. 
C)  specialized olfactory receptors. 
D)  ampullae of Lorenzini. 
E)  lateral line organs. 
A)  electroreceptors. 
B)  thermoreceptors. 
C)  specialized olfactory receptors. 
D)  ampullae of Lorenzini. 
E)  lateral line organs.

Question 5

A receptor potential is a(n) all-or-none response. 
____________________

Accepted Answer

A) True 
 B)False

Question 6

Figure 43-3   In the accompanying figure, the structure labeled as 4 is the:

Accepted Answer

A)  basilar membrane. 
B)  tectorial membrane. 
C)  organ of Corti. 
D)  sterociliary membrane. 
E)  vestibular membrane. 
A)  basilar membrane. 
B)  tectorial membrane. 
C)  organ of Corti. 
D)  sterociliary membrane. 
E)  vestibular membrane.

Question 7

Compare and contrast the structure and function of the saccule and utricle with that of the semicircular canals with regard to maintaining equilibrium.

Accepted Answer

In mammals, the utricle, saccule, and se

Question 8

For your eye to focus on this sentence, the ciliary muscle would need to:

Accepted Answer

A)  contract for the lens to get rounder. 
B)  contract for the lens to get flatter. 
C)  relax for the lens to get rounder. 
D)  relax for the lens to get flatter. 
E)  relax to thin out the lens. 
A)  contract for the lens to get rounder. 
B)  contract for the lens to get flatter. 
C)  relax for the lens to get rounder. 
D)  relax for the lens to get flatter. 
E)  relax to thin out the lens.

Question 9

Figure 43-4   The type of cell labeled as 5 in the accompanying figure is a(n):

Accepted Answer

A)  amacrine cell. 
B)  bipolar cell. 
C)  ganglion cell. 
D)  cone. 
E)  horizontal cell. 
A)  amacrine cell. 
B)  bipolar cell. 
C)  ganglion cell. 
D)  cone. 
E)  horizontal cell.

Question 10

The function of the malleus, incus, and stapes in the middle ear is to:

Accepted Answer

A)  amplify the vibrations of sound waves. 
B)  cause the organ of Corti to rub against the tectorial membrane. 
C)  detect movement of the endolymph in the cochlear duct. 
D)  relieve pressure differences between the middle ear and atmosphere. 
E)  give support to the membranous labyrinth. 
A)  amplify the vibrations of sound waves. 
B)  cause the organ of Corti to rub against the tectorial membrane. 
C)  detect movement of the endolymph in the cochlear duct. 
D)  relieve pressure differences between the middle ear and atmosphere. 
E)  give support to the membranous labyrinth.

Question 11

The membranous labyrinth of the inner ear consists of the:

Accepted Answer

A)  saccule, utricle, and three semicircular canals. 
B)  vestibular canal and oval window. 
C)  cochlea, tympanum, and three bones. 
D)  statoliths and hair cells. 
E)  endolymph, perilymph, and the organ of Corti. 
A)  saccule, utricle, and three semicircular canals. 
B)  vestibular canal and oval window. 
C)  cochlea, tympanum, and three bones. 
D)  statoliths and hair cells. 
E)  endolymph, perilymph, and the organ of Corti.

Question 12

Changes in blood pH are detected by:

Accepted Answer

A)  interoceptors. 
B)  exteroceptors. 
C)  mechanoreceptors. 
D)  proprioceptors. 
E)  thermoreceptors. 
A)  interoceptors. 
B)  exteroceptors. 
C)  mechanoreceptors. 
D)  proprioceptors. 
E)  thermoreceptors.

Question 13

Which receptors are thought to be the most numerous and active in the body?

Accepted Answer

A)  proprioceptors 
B)  nociceptors 
C)  chemoreceptors 
D)  mechanoreceptors 
E)  electroreceptors 
A)  proprioceptors 
B)  nociceptors 
C)  chemoreceptors 
D)  mechanoreceptors 
E)  electroreceptors

Question 14

What would happen if you cut the vestibular fibers of the vestibulocochlear nerve?

Accepted Answer

A)  You would not be able to detect sound. 
B)  You would not be able to detect linear acceleration. 
C)  You would lose sensory functions in the upper body. 
D)  You would lose your sense of taste. 
E)  You would lose your sense of smell. 
A)  You would not be able to detect sound. 
B)  You would not be able to detect linear acceleration. 
C)  You would lose sensory functions in the upper body. 
D)  You would lose your sense of taste. 
E)  You would lose your sense of smell.

Question 15

Why are eyespots ineffective at detecting images?

Accepted Answer

A)  Eyespots cannot detect the direction of a light source. 
B)  Eyespots cannot distinguish light intensity. 
C)  Eyespots lack sensory cells. 
D)  Eyespots lack lenses. 
E)  Eyespots contain opaque lenses. 
A)  Eyespots cannot detect the direction of a light source. 
B)  Eyespots cannot distinguish light intensity. 
C)  Eyespots lack sensory cells. 
D)  Eyespots lack lenses. 
E)  Eyespots contain opaque lenses.

Question 16

The outermost covering of the eyeball is the choroid layer . 
____________________

Accepted Answer

A) True 
 B)False

Question 17

Sensilla are sensory hairs involved in taste and smell . 
____________________

Accepted Answer

A) True 
 B)False

Question 18

Figure 43-1   Refer to the accompanying figure with the lateral line organs of fishe s . The structures indicated by label 3 are:

Accepted Answer

A)  hair cells. 
B)  cupula. 
C)  stereocilia. 
D)  sensory neurons. 
E)  supporting cells. 
A)  hair cells. 
B)  cupula. 
C)  stereocilia. 
D)  sensory neurons. 
E)  supporting cells.

Exam 43: Sensory Systems

In the visual pathway information is sent from the photoreceptor cells in the retina directly to the ganglion cells.

Each ommatidium of the compound eye of an insect has a biconvex lens and a ____, which help focus light onto photoreceptor cells known as ____.

Which three types of proprioceptors are stimulated when you ride a bicycle?

Pit vipers and boas locate their prey using:

A receptor potential is a(n) all-or-none response. ____________________

Figure 43-3 In the accompanying figure, the structure labeled as 4 is the:

Compare and contrast the structure and function of the saccule and utricle with that of the semicircular canals with regard to maintaining equilibrium.

For your eye to focus on this sentence, the ciliary muscle would need to:

Figure 43-4 The type of cell labeled as 5 in the accompanying figure is a(n):

The function of the malleus, incus, and stapes in the middle ear is to:

The membranous labyrinth of the inner ear consists of the:

Changes in blood pH are detected by:

Which receptors are thought to be the most numerous and active in the body?

What would happen if you cut the vestibular fibers of the vestibulocochlear nerve?

Why are eyespots ineffective at detecting images?

The outermost covering of the eyeball is the choroid layer . ____________________

Sensilla are sensory hairs involved in taste and smell . ____________________

Figure 43-1 Refer to the accompanying figure with the lateral line organs of fishe s . The structures indicated by label 3 are:

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

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How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

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Dna Technology and Genomics

Human Genetics and the Human Genome

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Introduction to Darwinian Evolution

Evolutionary Change in Populations

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The Origin and Evolutionary History of Life

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Understanding Diversity Systematics

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Protists

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Introduction to Ecology Population Ecology

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Each ommatidium of the compound eye of an insect has a biconvex lens and a , which help focus light onto photoreceptor cells known as .