Question 1

The term cataract refers to the condition in which the lens becomes stiff and loses its elasticity.

Accepted Answer

A) True 
 B)False

Question 2

The refractive structure of the eye that has the ability to change its strength is the ____________________.

Accepted Answer

The answer of The refractive structure of the eye that...

Question 3

The pitch of a sound

Accepted Answer

A) is determined by the frequency of vibrations of air molecules 
B) depends on the amplitude of the waves 
C) is measured in units called decibels 
D) determines a sound's loudness 
E) is characterized by all of the above 
A) is determined by the frequency of vibrations of air molecules 
B) depends on the amplitude of the waves 
C) is measured in units called decibels 
D) determines a sound's loudness 
E) is characterized by all of the above

Question 4

Actual conversion of sound vibrations to nerve impulses occurs in the

Accepted Answer

A) eardrum 
B) ossicular system 
C) eustachian tube 
D) cochlea 
E) oval window 
A) eardrum 
B) ossicular system 
C) eustachian tube 
D) cochlea 
E) oval window

Question 5

The left cerebral cortex receives information from the ____________________ half of each visual field.

Accepted Answer

The answer of The left cerebral cortex receives information from...

Question 6

A concave lens is used to correct for a myopic eye.

Accepted Answer

A) True 
 B)False

Question 7

Accommodation in the eye requires

Accepted Answer

A) the shape of the cornea to change 
B) the shape of the lens to change 
C) the ciliary muscle to be relaxed for near vision 
D) the ciliary muscle to be contracted for distant vision 
E) b, c, and d 
A) the shape of the cornea to change 
B) the shape of the lens to change 
C) the ciliary muscle to be relaxed for near vision 
D) the ciliary muscle to be contracted for distant vision 
E) b, c, and d

Question 8

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Accepted Answer

A) True 
 B)False

Question 9

Receptors transduce one form of energy into electrical energy.

Accepted Answer

A) True 
 B)False

Question 10

The term adequate stimulus refers to the intensity of a stimulus developing above a threshold value.

Accepted Answer

A) True 
 B)False

Question 11

Natural analgesia occurs when

Accepted Answer

A) endogenous opiates bind to P-substance 
B) endogenous opiates bind to nociceptors in the spinal cord 
C) the periaquaductal gray matter stimulates afferent pain fibers in the spinal cord 
D) endogenous opiates bind to excitatory interneurons in the dorsal horns 
E) periaquaductal gray matter causes interneurons to release endogenous opiates that bind to receptors on afferent pain fibers 
A) endogenous opiates bind to P-substance 
B) endogenous opiates bind to nociceptors in the spinal cord 
C) the periaquaductal gray matter stimulates afferent pain fibers in the spinal cord 
D) endogenous opiates bind to excitatory interneurons in the dorsal horns 
E) periaquaductal gray matter causes interneurons to release endogenous opiates that bind to receptors on afferent pain fibers

Question 12

A single taste bud contains only one chemoreceptor that can respond to all primary tastes but generally responds preferentially to one of the taste modalities.

Accepted Answer

A) True 
 B)False

Question 13

Night blindness develops from a deficiency of vitamin ____________________.

Accepted Answer

The answer of Night blindness develops from a deficiency of...

Question 14

Indicate the characteristics associated with each part of the ear using the answer code below:
a.external ear
b.middle ear
c.cochlea
d.semicircular canal
e.utricle and saccule
f.external ear and middle ear
g.cochlea, semicircular canal, utricle and saccule
h.semicircular canal, utricle and saccule
i.cochlea and semicircular canal
-Concerned with sense of equilibrium

Accepted Answer

The answer of Indicate the characteristics associated with each part...

Question 15

The stapes is attached to the round window.

Accepted Answer

A) True 
 B)False

Question 16

Cones have higher acuity than rods because

Accepted Answer

A) cones respond more to long wavelengths of light 
B) there are three types of cones 
C) there is little convergence in the cone pathways within the retina 
D) there are more cones than rods 
E) the photopigment in cones breaks down more rapidly than the photopigment in rods. 
A) cones respond more to long wavelengths of light 
B) there are three types of cones 
C) there is little convergence in the cone pathways within the retina 
D) there are more cones than rods 
E) the photopigment in cones breaks down more rapidly than the photopigment in rods.

Question 17

The blind spot

Accepted Answer

A) is the point on the retina at which the optic nerve leaves and blood vessels pass through 
B) contains special photoreceptors that make only melanospin, which is not used for vision 
C) is in the exact center of the retina 
D) exhibits all of the above 
E) exhibits only a and c 
A) is the point on the retina at which the optic nerve leaves and blood vessels pass through 
B) contains special photoreceptors that make only melanospin, which is not used for vision 
C) is in the exact center of the retina 
D) exhibits all of the above 
E) exhibits only a and c

Question 18

How is glutamate important to pain pathways?

Accepted Answer

A) Binds to AMPA receptors on dorsal horn cells 
B) Results in hypersensitivity of damaged tissue 
C) Causes P-substance release 
D) Both a and b 
E) Both a and c 
A) Binds to AMPA receptors on dorsal horn cells 
B) Results in hypersensitivity of damaged tissue 
C) Causes P-substance release 
D) Both a and b 
E) Both a and c

Question 19

The visual message detected by the retina is transmitted intact to the visual cortex.

Accepted Answer

A) True 
 B)False

Question 20

Diplopia is another name for double vision.

Accepted Answer

A) True 
 B)False

The term cataract refers to the condition in which the lens becomes stiff and loses its elasticity.

The refractive structure of the eye that has the ability to change its strength is the ____________________.

The pitch of a sound

Actual conversion of sound vibrations to nerve impulses occurs in the

The left cerebral cortex receives information from the ____________________ half of each visual field.

A concave lens is used to correct for a myopic eye.

Accommodation in the eye requires

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Receptors transduce one form of energy into electrical energy.

The term adequate stimulus refers to the intensity of a stimulus developing above a threshold value.

Natural analgesia occurs when

A single taste bud contains only one chemoreceptor that can respond to all primary tastes but generally responds preferentially to one of the taste modalities.

Night blindness develops from a deficiency of vitamin ____________________.

The stapes is attached to the round window.

Cones have higher acuity than rods because

The blind spot

How is glutamate important to pain pathways?

The visual message detected by the retina is transmitted intact to the visual cortex.

Diplopia is another name for double vision.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Exam 6: The Peripheral Nervous System: Afferent Division Special Senses

The term cataract refers to the condition in which the lens becomes stiff and loses its elasticity.

The refractive structure of the eye that has the ability to change its strength is the ____________________.

The pitch of a sound

Actual conversion of sound vibrations to nerve impulses occurs in the

The left cerebral cortex receives information from the ____________________ half of each visual field.

A concave lens is used to correct for a myopic eye.

Accommodation in the eye requires

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Receptors transduce one form of energy into electrical energy.

The term adequate stimulus refers to the intensity of a stimulus developing above a threshold value.

Natural analgesia occurs when

A single taste bud contains only one chemoreceptor that can respond to all primary tastes but generally responds preferentially to one of the taste modalities.

Night blindness develops from a deficiency of vitamin ____________________.

The stapes is attached to the round window.

Cones have higher acuity than rods because

The blind spot

How is glutamate important to pain pathways?

The visual message detected by the retina is transmitted intact to the visual cortex.

Diplopia is another name for double vision.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters