Question 1

The auditory cortex is in the ____ lobe of the cerebral cortex.

Accepted Answer

A)  frontal 
B)  occipital 
C)  parietal 
D)  prefrontal 
E)  temporal 
A)  frontal 
B)  occipital 
C)  parietal 
D)  prefrontal 
E)  temporal

Question 2

In hyperopia:

Accepted Answer

A)  The eyeball is too short or the lens is too weak. 
B)  A near object is focused behind the retina, even with accommodation. 
C)  A far source of light is focused ahead of the retina. 
D)  The eyeball is too short or the lens is too weak, and a near object is focused behind the retina, even with accommodation. 
E)  The eyeball is too short or the lens is too weak, and a far source of light is focused ahead of the retina. 
A)  The eyeball is too short or the lens is too weak. 
B)  A near object is focused behind the retina, even with accommodation. 
C)  A far source of light is focused ahead of the retina. 
D)  The eyeball is too short or the lens is too weak, and a near object is focused behind the retina, even with accommodation. 
E)  The eyeball is too short or the lens is too weak, and a far source of light is focused ahead of the retina.

Question 3

A convex lens converges light rays or brings them closer together.

Accepted Answer

A) True 
 B)False

Question 4

The greater the curvature of a lens, the greater its ability to refract light rays.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following structures normally controls the amount of light entering the eye?

Accepted Answer

A)  ciliary muscle 
B)  suspensory ligaments 
C)  iris 
D)  cornea 
E)  lens 
A)  ciliary muscle 
B)  suspensory ligaments 
C)  iris 
D)  cornea 
E)  lens

Question 6

Complete each of the following statments.
The two major components of the ciliary body are the ____________________, which regulates the strength of the lens, and a capillary network that produces ____________________, which moves through the pupil.

Accepted Answer

ciliary mu

Question 7

The semicircular canals

Accepted Answer

A)  detect the position of the head relative to gravity 
B)  detect rotational or angular acceleration of the head 
C)  contain otoliths 
D)  detect the position of the head relative to gravity and contain otoliths 
E)  detect rotational or angular acceleration of the head and contain otoliths 
A)  detect the position of the head relative to gravity 
B)  detect rotational or angular acceleration of the head 
C)  contain otoliths 
D)  detect the position of the head relative to gravity and contain otoliths 
E)  detect rotational or angular acceleration of the head and contain otoliths

Question 8

Natural analgesia occurs when:

Accepted Answer

A)  Endogenous opiates bind to P-substance. 
B)  Endogenous opiates bind to receptors on afferent pain fibers. 
C)  The periaquaductal gray matter is stimulated. 
D)  Endogenous opiates bind to P-substance and to receptors on afferent pain fibers. 
E)  Endogenous opiates bind to receptors on afferent pain fibers and the periaquaductal gray matter is stimulated. 
A)  Endogenous opiates bind to P-substance. 
B)  Endogenous opiates bind to receptors on afferent pain fibers. 
C)  The periaquaductal gray matter is stimulated. 
D)  Endogenous opiates bind to P-substance and to receptors on afferent pain fibers. 
E)  Endogenous opiates bind to receptors on afferent pain fibers and the periaquaductal gray matter is stimulated.

Question 9

The tympanic membrane

Accepted Answer

A)  vibrates when struck by the incus 
B)  contains the organ of Corti 
C)  produces ear wax 
D)  is connected to the stapes 
E)  none of these 
A)  vibrates when struck by the incus 
B)  contains the organ of Corti 
C)  produces ear wax 
D)  is connected to the stapes 
E)  none of these

Question 10

Light rays passing through a concave lens undergo convergence.

Accepted Answer

A) True 
 B)False

Question 11

Second- and third-order sensory neurons synapse in the thalamus.

Accepted Answer

A) True 
 B)False

Question 12

Complete each of the following statments.
The ____________________ is the "middle" ear ossicle, and it transmits sound vibrations from the ____________________ (first ossicle) to the ____________________ (last ossicle).

Accepted Answer

incus, mal

Question 13

The olfactory mucosa contains enzymes that remove odoriferous molecules so that the sensation of smell doesn't linger after the source of the odor is removed.

Accepted Answer

A) True 
 B)False

Question 14

In the visual pathway:

Accepted Answer

A)  The fibers from the medial halves of both retinas cross at the optic chiasm. 
B)  The optic nerve carries information from the lateral half of one retina and the medial half of the other retina. 
C)  The optic nerve carries information from both the lateral half and the medial half of the retina of the same eye. 
D)  The fibers from the medial halves of both retinas cross at the optic chiasm, and the optic nerve carries information from the lateral half of one retina and the medial half of the other retina. 
E)  The fibers from the medial halves of both retinas cross at the optic chiasm, and the optic nerve carries information from both the lateral half and the medial half of the retina of the same eye. 
A)  The fibers from the medial halves of both retinas cross at the optic chiasm. 
B)  The optic nerve carries information from the lateral half of one retina and the medial half of the other retina. 
C)  The optic nerve carries information from both the lateral half and the medial half of the retina of the same eye. 
D)  The fibers from the medial halves of both retinas cross at the optic chiasm, and the optic nerve carries information from the lateral half of one retina and the medial half of the other retina. 
E)  The fibers from the medial halves of both retinas cross at the optic chiasm, and the optic nerve carries information from both the lateral half and the medial half of the retina of the same eye.

Question 15

Olfactory receptors

Accepted Answer

A)  are specialized endings of afferent neurons, not separate cells 
B)  when stimulated send impulses both to the limbic system for coordination between smell and behavior and to the thalamus and cortex for perception of smell 
C)  are replaced about every two months 
D)  are located in the olfactory mucosa 
E)  all of these 
A)  are specialized endings of afferent neurons, not separate cells 
B)  when stimulated send impulses both to the limbic system for coordination between smell and behavior and to the thalamus and cortex for perception of smell 
C)  are replaced about every two months 
D)  are located in the olfactory mucosa 
E)  all of these

Question 16

Select the incorrect association.

Accepted Answer

A)  cochlear duct/endolymph 
B)  malleus/inner ear 
C)  organ of Corti/hair cells 
D)  scala tympani/perilymph 
E)  scala vestibuli/perilymph 
A)  cochlear duct/endolymph 
B)  malleus/inner ear 
C)  organ of Corti/hair cells 
D)  scala tympani/perilymph 
E)  scala vestibuli/perilymph

Question 17

Through lateral inhibition, a more intensely activated receptor pathway halts transmission of impulses in surrounding, less intensely stimulated pathways.

Accepted Answer

A) True 
 B)False

Question 18

Mechanical deformation of the hairs of hair cells in the inner ear always results in depolarization of the hair cell synaptic terminal.

Accepted Answer

A) True 
 B)False

Question 19

Which type of sensory input is not integrated into the sense of equilibrium?

Accepted Answer

A)  cutaneous 
B)  proprioceptive 
C)  vestibular 
D)  visual 
E)  visceral 
A)  cutaneous 
B)  proprioceptive 
C)  vestibular 
D)  visual 
E)  visceral

Question 20

Complete each of the following statments.
____________________ is our conscious interpretation of the external world as created by the brain from a pattern of nerve impulses delivered to it from sensory receptors.

Accepted Answer

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

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

The auditory cortex is in the ____ lobe of the cerebral cortex.

In hyperopia:

A convex lens converges light rays or brings them closer together.

The greater the curvature of a lens, the greater its ability to refract light rays.

Which of the following structures normally controls the amount of light entering the eye?

Complete each of the following statments. The two major components of the ciliary body are the ____________________, which regulates the strength of the lens, and a capillary network that produces ____________________, which moves through the pupil.

The semicircular canals

Natural analgesia occurs when:

The tympanic membrane

Light rays passing through a concave lens undergo convergence.

Second- and third-order sensory neurons synapse in the thalamus.

Complete each of the following statments. The ____________________ is the "middle" ear ossicle, and it transmits sound vibrations from the ____________________ (first ossicle) to the ____________________ (last ossicle).

The olfactory mucosa contains enzymes that remove odoriferous molecules so that the sensation of smell doesn't linger after the source of the odor is removed.

In the visual pathway:

Olfactory receptors

Select the incorrect association.

Through lateral inhibition, a more intensely activated receptor pathway halts transmission of impulses in surrounding, less intensely stimulated pathways.

Mechanical deformation of the hairs of hair cells in the inner ear always results in depolarization of the hair cell synaptic terminal.

Which type of sensory input is not integrated into the sense of equilibrium?

Complete each of the following statments. ____________________ is our conscious interpretation of the external world as created by the brain from a pattern of nerve impulses delivered to it from sensory receptors.

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 two major components of the ciliary body are the , which regulates the strength of the lens, and a capillary network that produces , which moves through the pupil.

Complete each of the following statments. The is the "middle" ear ossicle, and it transmits sound vibrations from the (first ossicle) to the (last ossicle).