Question 1

Which neuromodulator is not capable of binding to opiate receptors in the analgesic pathways?

Accepted Answer

A)  bradykinin 
B)  dynorphin 
C)  endogenous opiates 
D)  endorphins 
E)  enkephalins 
A)  bradykinin 
B)  dynorphin 
C)  endogenous opiates 
D)  endorphins 
E)  enkephalins

Question 2

The optic track carries information from

Accepted Answer

A)  the lateral half of the retina on the same side and the medial half of the retina on the opposite side 
B)  the lateral halves of both retinas 
C)  the medial halves of both retinas 
D)  the lateral half of the retina on the opposite side and the medial half of the retina on the same side 
E)  both the lateral and medial halves of the retina on the same side 
A)  the lateral half of the retina on the same side and the medial half of the retina on the opposite side 
B)  the lateral halves of both retinas 
C)  the medial halves of both retinas 
D)  the lateral half of the retina on the opposite side and the medial half of the retina on the same side 
E)  both the lateral and medial halves of the retina on the same side

Question 3

Pacinian corpuscles

Accepted Answer

A)  adapt as a result of the physical features of the receptor 
B)  detect temperature 
C)  are tonic receptors 
D)  do not display an "off-response" 
E)  measure the degree of joint flexion 
A)  adapt as a result of the physical features of the receptor 
B)  detect temperature 
C)  are tonic receptors 
D)  do not display an "off-response" 
E)  measure the degree of joint flexion

Question 4

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 5

Complete each of the following statments.
The rods and cones synapse with ____________________ cells, which in turn synapse with ganglion cells before entering the optic nerve.

Accepted Answer

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

Question 6

The greatest density of rods is found in the fovea of the macula lutea.

Accepted Answer

A) True 
 B)False

Question 7

Which structure(s) is/are associated with hearing?

Accepted Answer

A)  ampulla 
B)  cochlea 
C)  cupula 
D)  cristae 
E)  saccule 
A)  ampulla 
B)  cochlea 
C)  cupula 
D)  cristae 
E)  saccule

Question 8

Fluid movement in the cochlea causes

Accepted Answer

A)  displacement of the round window, which dissipates pressure 
B)  deflection of the cupula 
C)  the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths 
D)  displacement of the round window, which dissipates pressure, and the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths 
E)  all of these 
A)  displacement of the round window, which dissipates pressure 
B)  deflection of the cupula 
C)  the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths 
D)  displacement of the round window, which dissipates pressure, and the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths 
E)  all of these

Question 9

The middle layer of the retina contains

Accepted Answer

A)  bipolar neurons 
B)  convex cells 
C)  ganglion cells 
D)  hair cells 
E)  rods and cones 
A)  bipolar neurons 
B)  convex cells 
C)  ganglion cells 
D)  hair cells 
E)  rods and cones

Question 10

Complete each of the following statments.
The iris consists of layers of ____________________ and ____________________ smooth muscle fibers.

Accepted Answer

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

Question 11

The three types of cones are

Accepted Answer

A)  black, red, and white 
B)  blue, green, and red 
C)  blue, green, and white 
D)  green, orange, and yellow 
E)  orange, yellow, and white 
A)  black, red, and white 
B)  blue, green, and red 
C)  blue, green, and white 
D)  green, orange, and yellow 
E)  orange, yellow, and white

Question 12

Depth perception comes about in large part because of binocular vision.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

The identical nerve pathway conveys information regarding pressure and temperature sensation of the thumb.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

The smaller the receptive fields in a region, the

Accepted Answer

A)  greater the density of receptors in the region 
B)  greater the acuity in the region 
C)  more cortical space allotted for sensory reception from the region 
D)  all of these 
E)  greater the density of receptors in the region and greater the acuity in the region 
A)  greater the density of receptors in the region 
B)  greater the acuity in the region 
C)  more cortical space allotted for sensory reception from the region 
D)  all of these 
E)  greater the density of receptors in the region and greater the acuity in the region

Question 17

The helicotrema allows sound waves to pass from the scalavestibuli into the scala media.

Accepted Answer

A) True 
 B)False

Question 18

Receptors

Accepted Answer

A)  respond to various physical or chemical changes in their environment 
B)  change other forms of energy into electrical energy 
C)  respond more readily to their adequate stimulus 
D)  are found at the peripheral endings of afferent neurons 
E)  all of these 
A)  respond to various physical or chemical changes in their environment 
B)  change other forms of energy into electrical energy 
C)  respond more readily to their adequate stimulus 
D)  are found at the peripheral endings of afferent neurons 
E)  all of these

Question 19

Vision in bright light is chiefly due to cone activation.

Accepted Answer

A) True 
 B)False

Question 20

Light is the only stimulus capable of stimulating the photoreceptors of the eye.

Accepted Answer

A) True 
 B)False

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

Which neuromodulator is not capable of binding to opiate receptors in the analgesic pathways?

The optic track carries information from

Pacinian corpuscles

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

Complete each of the following statments. The rods and cones synapse with ____________________ cells, which in turn synapse with ganglion cells before entering the optic nerve.

The greatest density of rods is found in the fovea of the macula lutea.

Which structure(s) is/are associated with hearing?

Fluid movement in the cochlea causes

The middle layer of the retina contains

Complete each of the following statments. The iris consists of layers of ____________________ and ____________________ smooth muscle fibers.

The three types of cones are

Depth perception comes about in large part because of binocular vision.

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

The identical nerve pathway conveys information regarding pressure and temperature sensation of the thumb.

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

The smaller the receptive fields in a region, the

The helicotrema allows sound waves to pass from the scalavestibuli into the scala media.

Receptors

Vision in bright light is chiefly due to cone activation.

Light is the only stimulus capable of stimulating the photoreceptors of the eye.

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

Complete each of the following statments. The iris consists of layers of and smooth muscle fibers.