Question 1

Accommodation permits near vision.

Accepted Answer

A) True 
 B)False

Question 2

Which one of the following is not involved in sending the vibrational signal to the inner ear?

Accepted Answer

A)  external auditory meatus 
B)  eustachian tube 
C)  malleus 
D)  stapes 
E)  tympanum 
A)  external auditory meatus 
B)  eustachian tube 
C)  malleus 
D)  stapes 
E)  tympanum

Question 3

Which of the following helps reduce internal reflection (scattering of light within the eye)?

Accepted Answer

A)  sclera 
B)  choroid 
C)  blind spot 
D)  lens 
E)  iris 
A)  sclera 
B)  choroid 
C)  blind spot 
D)  lens 
E)  iris

Question 4

Complete each of the following statments.
____________________ are traveling vibrations of air that consist of alternating with regions of low pressure caused by rarefaction of the molecules.

Accepted Answer

The answer of Complete each of the following statments.
____________________ are...

Question 5

The first structure to intercept light as it enters the eye is the

Accepted Answer

A)  aqueous humor 
B)  cornea 
C)  lens 
D)  retina 
E)  vitreous humor 
A)  aqueous humor 
B)  cornea 
C)  lens 
D)  retina 
E)  vitreous humor

Question 6

In light adaptation:

Accepted Answer

A)  Phototransduction does not occur in the retinal regions outside of the fovea. 
B)  Rhodopsin levels decrease in rods. 
C)  The iris' circular muscle relaxes. 
D)  Phototransduction does not occur in the retinal regions outside of the fovea, and rhodopsin levels decrease in rods. 
E)  Rhodopsin levels decrease in rods, and the iris' circular muscle relaxes. 
A)  Phototransduction does not occur in the retinal regions outside of the fovea. 
B)  Rhodopsin levels decrease in rods. 
C)  The iris' circular muscle relaxes. 
D)  Phototransduction does not occur in the retinal regions outside of the fovea, and rhodopsin levels decrease in rods. 
E)  Rhodopsin levels decrease in rods, and the iris' circular muscle relaxes.

Question 7

The amplitude of sound waves is interpreted as the pitch of the sound.

Accepted Answer

A) True 
 B)False

Question 8

Color blindness may be caused by Vitamin A deficiency, whereas night blindness is due to a deficiency of vitamin
C.

Accepted Answer

A) True 
 B)False

Question 9

Which statement is false?

Accepted Answer

A)  Sound waves are produced by a disturbance pattern in air molecules. 
B)  Sound waves gradually dissipate as they travel from the original sound source. 
C)  Long sound waves vibrate more hair cells near the oval window than near the helicotrema. 
D)  A sound at 60 decibels will always be louder than a sound at 50 cycles per second. 
E)  Sound waves vibrate perilymph before they vibrate endolymph. 
A)  Sound waves are produced by a disturbance pattern in air molecules. 
B)  Sound waves gradually dissipate as they travel from the original sound source. 
C)  Long sound waves vibrate more hair cells near the oval window than near the helicotrema. 
D)  A sound at 60 decibels will always be louder than a sound at 50 cycles per second. 
E)  Sound waves vibrate perilymph before they vibrate endolymph.

Question 10

Complete each of the following statments. Night blindness develops from a deficiency of vitamin ____________________.
A

Accepted Answer

The answer of Complete each of the following statments. Night...

Question 11

Rhodopsin

Accepted Answer

A)  is the photopigment in the red cones 
B)  consists of an opsin and retinal 
C)  is most highly concentrated in the fovea 
D)  is slowly broken down in the absence of light 
E)  contains a derivative of vitamin B12 
A)  is the photopigment in the red cones 
B)  consists of an opsin and retinal 
C)  is most highly concentrated in the fovea 
D)  is slowly broken down in the absence of light 
E)  contains a derivative of vitamin B12

Question 12

In hyperopia the far source is focused on the retina with accommodation and the near source is focused behind the retina.

Accepted Answer

A) True 
 B)False

Question 13

Endorphins and enkephalins

Accepted Answer

A)  are endogenous morphine-like substances 
B)  are important in the body's natural analgesic system 
C)  stimulate the release of substance P by binding with opiate receptors 
D)  are endogenous morphine-like substances, important in the body's natural analgesic system 
E)  all of these 
A)  are endogenous morphine-like substances 
B)  are important in the body's natural analgesic system 
C)  stimulate the release of substance P by binding with opiate receptors 
D)  are endogenous morphine-like substances, important in the body's natural analgesic system 
E)  all of these

Question 14

Sequencing Indicate the proper sequence of involvement in the visual pathway by writing the appropriate letter in the blank, using the answer code below.
(a)	bipolar neurons
(b)	optic nerve
(c)	lateral geniculate nucleus
(d)	rods and cones
(e)	visual cortex
(f)	optic tracts
(g)	ganglion cells
(h)	optic radiations
_____	First
_____	Second
_____	Third
_____	Fourth
_____	Fifth
_____	Sixth
_____	Seventh
_____	Eighth

Accepted Answer

D, A, G, B

Question 15

Receptors

Accepted Answer

A)  generate action potentials in afferent fibers in response to stimuli 
B)  change other forms of energy into electrical energy 
C)  are located in the dorsal root ganglion 
D)  generate action potentials in afferent fibers in response to stimuli and change other forms of energy into electrical energy 
E)  all of these 
A)  generate action potentials in afferent fibers in response to stimuli 
B)  change other forms of energy into electrical energy 
C)  are located in the dorsal root ganglion 
D)  generate action potentials in afferent fibers in response to stimuli and change other forms of energy into electrical energy 
E)  all of these

Question 16

Incoming visual information is relayed to the appropriate cortical tissue by the

Accepted Answer

A)  ganglion cells 
B)  lateral geniculate nuclei 
C)  thalamus 
D)  ganglion cells and thalamus 
E)  lateral geniculate nuclei and thalamus 
A)  ganglion cells 
B)  lateral geniculate nuclei 
C)  thalamus 
D)  ganglion cells and thalamus 
E)  lateral geniculate nuclei and thalamus

Question 17

Conscious interpretation of external stimuli

Accepted Answer

A)  is sensation 
B)  rarely occurs 
C)  is perception 
D)  is processed in the diencephalon 
E)  none of these 
A)  is sensation 
B)  rarely occurs 
C)  is perception 
D)  is processed in the diencephalon 
E)  none of these

Question 18

Axons from retinal ganglion cells form the optic nerve.

Accepted Answer

A) True 
 B)False

Question 19

Phasic receptors

Accepted Answer

A)  exhibit an "off-response" 
B)  signal a change in stimulus intensity 
C)  are rapidly adapting receptors 
D)  all of these 
E)  none of these 
A)  exhibit an "off-response" 
B)  signal a change in stimulus intensity 
C)  are rapidly adapting receptors 
D)  all of these 
E)  none of these

Question 20

In response to movement of the oval window,

Accepted Answer

A)  Pressure waves occur in the scala vestibuli. 
B)  A portion of the basilar membrane vibrates. 
C)  Certain hair cell receptors in the organ of Corti become excited. 
D)  The round window is displaced. 
E)  All of these. 
A)  Pressure waves occur in the scala vestibuli. 
B)  A portion of the basilar membrane vibrates. 
C)  Certain hair cell receptors in the organ of Corti become excited. 
D)  The round window is displaced. 
E)  All of these.

Exam 6: A--The Peripheral Nervous System: Afferent Division; Special Senses

Accommodation permits near vision.

Which one of the following is not involved in sending the vibrational signal to the inner ear?

Which of the following helps reduce internal reflection (scattering of light within the eye)?

Complete each of the following statments. ____________________ are traveling vibrations of air that consist of alternating with regions of low pressure caused by rarefaction of the molecules.

The first structure to intercept light as it enters the eye is the

In light adaptation:

The amplitude of sound waves is interpreted as the pitch of the sound.

Color blindness may be caused by Vitamin A deficiency, whereas night blindness is due to a deficiency of vitamin C.

Which statement is false?

Complete each of the following statments. Night blindness develops from a deficiency of vitamin ____________________. A

Rhodopsin

In hyperopia the far source is focused on the retina with accommodation and the near source is focused behind the retina.

Endorphins and enkephalins

Receptors

Incoming visual information is relayed to the appropriate cortical tissue by the

Conscious interpretation of external stimuli

Axons from retinal ganglion cells form the optic nerve.

Phasic receptors

In response to movement of the oval window,

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters