Question 1

Light falling on the retina is absorbed by rhodopsin and photopsin in the pigment epithelium.

Accepted Answer

A) True 
 B)False

Question 2

Which structure acts as a transducer in the spiral organ?

Accepted Answer

A)  Stereocilium 
B)  Inner hair cell 
C)  Tectorial membrane 
D)  Round window 
E)  Basilar membrane 
A)  Stereocilium 
B)  Inner hair cell 
C)  Tectorial membrane 
D)  Round window 
E)  Basilar membrane

Question 3

The spiral organ is housed within which of the following structures?

Accepted Answer

A)  Scala vestibuli 
B)  Scala tympani 
C)  Cochlear duct 
D)  Anterior semicircular duct 
E)  Vestibule 
A)  Scala vestibuli 
B)  Scala tympani 
C)  Cochlear duct 
D)  Anterior semicircular duct 
E)  Vestibule

Question 4

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

Accepted Answer

A)  Ossicles 
B)  Cochlear hair cells 
C)  Tympanic membrane 
D)  Fibers of the cochlear nerve 
E)  Tectorial membrane 
A)  Ossicles 
B)  Cochlear hair cells 
C)  Tympanic membrane 
D)  Fibers of the cochlear nerve 
E)  Tectorial membrane

Question 5

What are the only retinal cells that produce action potentials?

Accepted Answer

A)  Rods 
B)  Cones 
C)  Ganglion cells 
D)  Bipolar cells 
E)  Horizontal cells 
A)  Rods 
B)  Cones 
C)  Ganglion cells 
D)  Bipolar cells 
E)  Horizontal cells

Question 6

Adjustment to close-range vision involves all of the following except __________.

Accepted Answer

A)  activity of the extrinsic eye muscles 
B)  change in the curvature of the lens 
C)  constriction of the pupil 
D)  ciliary muscle activity 
E)  light adaptation 
A)  activity of the extrinsic eye muscles 
B)  change in the curvature of the lens 
C)  constriction of the pupil 
D)  ciliary muscle activity 
E)  light adaptation

Question 7

The output energy of all receptors is a type of __________ energy.

Accepted Answer

A)  chemical 
B)  mechanical 
C)  thermal 
D)  electrical 
E)  nuclear 
A)  chemical 
B)  mechanical 
C)  thermal 
D)  electrical 
E)  nuclear

Question 8

What do pheromones stimulate?

Accepted Answer

A)  Hair cells 
B)  Supporting cells 
C)  Taste cells 
D)  Olfactory cells 
E)  Olfactory glands 
A)  Hair cells 
B)  Supporting cells 
C)  Taste cells 
D)  Olfactory cells 
E)  Olfactory glands

Question 9

Which of the following is not involved with spinal gating of pain signals?

Accepted Answer

A)  Nociceptors 
B)  The spinothalamic tract 
C)  Lower motor neurons 
D)  Second-order neurons 
E)  The reticulospinal tract 
A)  Nociceptors 
B)  The spinothalamic tract 
C)  Lower motor neurons 
D)  Second-order neurons 
E)  The reticulospinal tract

Question 10

Changes in blood pressure are detected by __________ in certain arteries.

Accepted Answer

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

Question 11

The middle ear consists of a fluid-filled chamber.

Accepted Answer

A) True 
 B)False

Question 12

What is the crista ampullaris associated with?

Accepted Answer

A)  Static equilibrium when standing still 
B)  Static acceleration in linear acceleration 
C)  Dynamic equilibrium in angular acceleration 
D)  Hearing high-pitch sounds 
E)  Vision related to color 
A)  Static equilibrium when standing still 
B)  Static acceleration in linear acceleration 
C)  Dynamic equilibrium in angular acceleration 
D)  Hearing high-pitch sounds 
E)  Vision related to color

Question 13

In a taste bud,which cell produces a receptor potential?

Accepted Answer

A)  Taste hairs 
B)  Sensory nerve fibers 
C)  Supporting cells 
D)  Basal cells 
E)  Gustatory cells 
A)  Taste hairs 
B)  Sensory nerve fibers 
C)  Supporting cells 
D)  Basal cells 
E)  Gustatory cells

Question 14

Stimuli produced by sound waves reach the brain following which pathway?

Accepted Answer

A)  Cochlear duct → spiral organ → ossicles → oval window → auditory canal → tympanic membrane → fibers of cochlear nerve 
B)  Auditory canal → tympanic membrane → oval window → cochlear duct → ossicles → spiral organ → fibers of cochlear nerve 
C)  Cochlear duct → oval window → auditory canal → tympanic membrane → ossicles → spiral organ → fibers of cochlear nerve 
D)  Tympanic membrane → auditory canal → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve 
E)  Auditory canal → tympanic membrane → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve 
A)  Cochlear duct → spiral organ → ossicles → oval window → auditory canal → tympanic membrane → fibers of cochlear nerve 
B)  Auditory canal → tympanic membrane → oval window → cochlear duct → ossicles → spiral organ → fibers of cochlear nerve 
C)  Cochlear duct → oval window → auditory canal → tympanic membrane → ossicles → spiral organ → fibers of cochlear nerve 
D)  Tympanic membrane → auditory canal → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve 
E)  Auditory canal → tympanic membrane → ossicles → oval window → cochlear duct → spiral organ → fibers of cochlear nerve

Question 15

Which of the following structures is visible to the naked eye?

Accepted Answer

A)  Lingual papilla 
B)  Taste (gustatory)cell 
C)  Taste hair 
D)  Taste bud 
E)  Taste pore 
A)  Lingual papilla 
B)  Taste (gustatory)cell 
C)  Taste hair 
D)  Taste bud 
E)  Taste pore

Question 16

Which organ does not have nociceptors?

Accepted Answer

A)  Brain 
B)  Heart 
C)  Kidney 
D)  Liver 
E)  Stomach 
A)  Brain 
B)  Heart 
C)  Kidney 
D)  Liver 
E)  Stomach

Question 17

What are the first-order neurons in the visual pathway?

Accepted Answer

A)  Optic nerve fibers 
B)  Rods and cones 
C)  Ganglion cells 
D)  Bipolar cells 
E)  Amacrine cells 
A)  Optic nerve fibers 
B)  Rods and cones 
C)  Ganglion cells 
D)  Bipolar cells 
E)  Amacrine cells

Question 18

Why do cones exhibit less neuronal convergence than rods?

Accepted Answer

A)  Rods cannot distinguish different colors from each other. 
B)  Rods do not function in bright light. 
C)  No images are perceived within the optic disc. 
D)  Cones do not detect black and white. 
E)  Photopic vision has higher resolution than scotopic vision. 
A)  Rods cannot distinguish different colors from each other. 
B)  Rods do not function in bright light. 
C)  No images are perceived within the optic disc. 
D)  Cones do not detect black and white. 
E)  Photopic vision has higher resolution than scotopic vision.

Question 19

Half of the fibers of each optic nerve decussate at the __________.

Accepted Answer

A)  superior colliculus 
B)  optic chiasm 
C)  lateral geniculate nucleus of the thalamus 
D)  optic foramen 
E)  midbrain 
A)  superior colliculus 
B)  optic chiasm 
C)  lateral geniculate nucleus of the thalamus 
D)  optic foramen 
E)  midbrain

Question 20

Human vision is limited to wavelengths ranging from __________ nm.

Accepted Answer

A)  4 to 70 
B)  40 to 700 
C)  400 to 700 
D)  400 to 7,000 
E)  4,000 to 7,000 
A)  4 to 70 
B)  40 to 700 
C)  400 to 700 
D)  400 to 7,000 
E)  4,000 to 7,000

Exam 16: Sense Organs

Light falling on the retina is absorbed by rhodopsin and photopsin in the pigment epithelium.

Which structure acts as a transducer in the spiral organ?

The spiral organ is housed within which of the following structures?

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

What are the only retinal cells that produce action potentials?

Adjustment to close-range vision involves all of the following except __________.

The output energy of all receptors is a type of __________ energy.

What do pheromones stimulate?

Which of the following is not involved with spinal gating of pain signals?

Changes in blood pressure are detected by __________ in certain arteries.

The middle ear consists of a fluid-filled chamber.

What is the crista ampullaris associated with?

In a taste bud,which cell produces a receptor potential?

Stimuli produced by sound waves reach the brain following which pathway?

Which of the following structures is visible to the naked eye?

Which organ does not have nociceptors?

What are the first-order neurons in the visual pathway?

Why do cones exhibit less neuronal convergence than rods?

Half of the fibers of each optic nerve decussate at the __________.

Human vision is limited to wavelengths ranging from __________ nm.

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord,spinal Nerves,and Somatic Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Human Development and Aging

Atlas a General Orientation to Human Anatomy

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