Question 1

A type of farsightedness that results from a loss of lens elasticity with age is ________.

Accepted Answer

The answer of A type of farsightedness that results from...

Question 2

The following steps occur in rods when they are excited by photons of light. 1.Membrane sodium channels close.
2)Increased phosphodiesterase breaks down cGMP.
3)Retinal changes from the 11-cis form to the 11-trans form.
4)The membrane hyperpolarizes and the rate of neurotransmitter release declines.
5)Opsin activates transducin.
6)Opsin activation occurs.
The proper sequence for these steps is

Accepted Answer

A) 1,6,5,2,4,3. 
B) 3,6,5,2,1,4. 
C) 6,3,5,2,1,4. 
D) 3,6,5,1,2,4. 
E) 1,3,4,5,6,2. 
A) 1,6,5,2,4,3. 
B) 3,6,5,2,1,4. 
C) 6,3,5,2,1,4. 
D) 3,6,5,1,2,4. 
E) 1,3,4,5,6,2.

Question 3

Which of the following descriptions best matches the term otoliths?

Accepted Answer

A) move up and down when the stapes moves back and forth 
B) transmit movement of the tympanic membrane to the inner ear 
C) bending these produces receptor potential in hair cells 
D) tiny weights necessary for the static sense of equilibrium 
E) seal the oval window 
A) move up and down when the stapes moves back and forth 
B) transmit movement of the tympanic membrane to the inner ear 
C) bending these produces receptor potential in hair cells 
D) tiny weights necessary for the static sense of equilibrium 
E) seal the oval window

Question 4

In the light-adapted state,

Accepted Answer

A) photoreceptors are much more sensitive to stimulation. 
B) photoreceptors are much less sensitive to stimulation. 
C) we can only see color,and not black and white. 
D) we would see better in the dark. 
E) colors are dull. 
A) photoreceptors are much more sensitive to stimulation. 
B) photoreceptors are much less sensitive to stimulation. 
C) we can only see color,and not black and white. 
D) we would see better in the dark. 
E) colors are dull.

Question 5

The elevated ridges within the ampullae of the semicircular canals that support the hair cells are known as a ________.

Accepted Answer

The answer of The elevated ridges within the ampullae of...

Question 6

In the human eye,most refraction occurs when light passes through the

Accepted Answer

A) iris. 
B) cornea. 
C) lens. 
D) aqueous humor. 
E) vitreous humor. 
A) iris. 
B) cornea. 
C) lens. 
D) aqueous humor. 
E) vitreous humor.

Question 7

Where are the visual pigments located in the rods and cones?

Accepted Answer

A) in the inner segment of photoreceptors 
B) in mitochondria located in the outer segment 
C) inside membrane discs stacked in the outer segment 
D) inside a photosensitive nucleus 
E) sandwiched in the cell membrane of the photoreceptors 
A) in the inner segment of photoreceptors 
B) in mitochondria located in the outer segment 
C) inside membrane discs stacked in the outer segment 
D) inside a photosensitive nucleus 
E) sandwiched in the cell membrane of the photoreceptors

Question 8

When light encounters a medium of different density,it is bent or ________.

Accepted Answer

The answer of When light encounters a medium of different...

Question 9

What six basic steps are involved in the process of hearing?

Accepted Answer

(1)Sound waves arrive at the tympanic me

Question 10

The structure that forms the "roof" of the organ of Corti is the

Accepted Answer

A) basilar membrane. 
B) tectorial membrane. 
C) stapedius. 
D) perilymph. 
E) endolymph. 
A) basilar membrane. 
B) tectorial membrane. 
C) stapedius. 
D) perilymph. 
E) endolymph.

Question 11

Figure 17-1 The Sectional Anatomy of the Eye
Use Figure 17-1 to answer the following questions:
-Identify the space labeled "1."

Accepted Answer

A) posterior cavity 
B) posterior chamber 
C) pupil 
D) anterior chamber 
E) vitreous chamber 
A) posterior cavity 
B) posterior chamber 
C) pupil 
D) anterior chamber 
E) vitreous chamber

Question 12

What structure regulates the amount of light that passes to the photoreceptors of the eye?

Accepted Answer

A) vitreous body 
B) cornea 
C) ciliary muscle 
D) iris 
E) lens 
A) vitreous body 
B) cornea 
C) ciliary muscle 
D) iris 
E) lens

Question 13

Figure 17-1 The Sectional Anatomy of the Eye
Use Figure 17-1 to answer the following questions:
-Identify the structure labeled "14."

Accepted Answer

A) pupil 
B) optic disc 
C) sclera 
D) fovea 
E) suspensory ligaments 
A) pupil 
B) optic disc 
C) sclera 
D) fovea 
E) suspensory ligaments

Question 14

The vitreous body

Accepted Answer

A) fills the posterior chamber. 
B) helps to stabilize the eye and give physical support to the retina. 
C) is replaced at the rate of 20 percent per year until middle age. 
D) circulates through the pupil. 
E) holds the retina against the lens for proper refraction. 
A) fills the posterior chamber. 
B) helps to stabilize the eye and give physical support to the retina. 
C) is replaced at the rate of 20 percent per year until middle age. 
D) circulates through the pupil. 
E) holds the retina against the lens for proper refraction.

Question 15

Which of the following is true of the vascular tunic of the eye?

Accepted Answer

A) provides a route for blood vessels and lymphatics that supply tissues of the eye 
B) regulates the amount of light entering the eye 
C) secretes and reabsorbs the aqueous humor 
D) controls the shape of the lens 
E) All of the answers are correct. 
A) provides a route for blood vessels and lymphatics that supply tissues of the eye 
B) regulates the amount of light entering the eye 
C) secretes and reabsorbs the aqueous humor 
D) controls the shape of the lens 
E) All of the answers are correct.

Question 16

Olfactory organs are located in the nasal cavity inferior to the perforated bony structure known as the ________.

Accepted Answer

cribriform

Question 17

The gelatinous material that gives the eyeball its basic shape is the

Accepted Answer

A) vitreous humor. 
B) aqueous humor. 
C) ora serrata. 
D) perilymph. 
E) posterior cavity. 
A) vitreous humor. 
B) aqueous humor. 
C) ora serrata. 
D) perilymph. 
E) posterior cavity.

Question 18

Abnormal jumpy eye movements that may appear after brain stem or inner ear damage are called ________.

Accepted Answer

The answer of Abnormal jumpy eye movements that may appear...

Question 19

The taste sensation that is triggered by the amino acid glutamate is known as

Accepted Answer

A) sweet. 
B) umami. 
C) salty. 
D) peppery. 
E) sour. 
A) sweet. 
B) umami. 
C) salty. 
D) peppery. 
E) sour.

Question 20

Sally's driver's license indicates that she must wear glasses when she drives.She does not need glasses to see objects that are close.What type of lenses are in Sally's eyeglasses? How do they work?

Accepted Answer

Sally is apparently nearsighte

Exam 17: The Special Senses

A type of farsightedness that results from a loss of lens elasticity with age is ________.

Which of the following descriptions best matches the term otoliths?

In the light-adapted state,

The elevated ridges within the ampullae of the semicircular canals that support the hair cells are known as a ________.

In the human eye,most refraction occurs when light passes through the

Where are the visual pigments located in the rods and cones?

When light encounters a medium of different density,it is bent or ________.

What six basic steps are involved in the process of hearing?

The structure that forms the "roof" of the organ of Corti is the

Figure 17-1 The Sectional Anatomy of the Eye Use Figure 17-1 to answer the following questions: -Identify the space labeled "1."

What structure regulates the amount of light that passes to the photoreceptors of the eye?

Figure 17-1 The Sectional Anatomy of the Eye Use Figure 17-1 to answer the following questions: -Identify the structure labeled "14."

The vitreous body

Which of the following is true of the vascular tunic of the eye?

Olfactory organs are located in the nasal cavity inferior to the perforated bony structure known as the ________.

The gelatinous material that gives the eyeball its basic shape is the

Abnormal jumpy eye movements that may appear after brain stem or inner ear damage are called ________.

The taste sensation that is triggered by the amino acid glutamate is known as

Sally's driver's license indicates that she must wear glasses when she drives.She does not need glasses to see objects that are close.What type of lenses are in Sally's eyeglasses? How do they work?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters