Question 1

The occipital lobe

Accepted Answer

A)  receives information from cranial nerve III. 
B)  sends motor information to the iris, thereby controlling pupillary size. 
C)  receives sensory information from cranial nerve II. 
D)  contains the primary auditory cortex. 
A)  receives information from cranial nerve III. 
B)  sends motor information to the iris, thereby controlling pupillary size. 
C)  receives sensory information from cranial nerve II. 
D)  contains the primary auditory cortex. C

Question 2

The optic nerve

Accepted Answer

A)  carries electrical signals from the retina to the primary visual cortex. 
B)  is CN III. 
C)  is the sensory arm of the corneal reflex. 
D)  is mixed. 
A)  carries electrical signals from the retina to the primary visual cortex. 
B)  is CN III. 
C)  is the sensory arm of the corneal reflex. 
D)  is mixed. A

Question 3

Rods

Accepted Answer

A)  are concentrated in the macula lutea. 
B)  detect red, yellow, and blue colors. 
C)  are concerned with night vision. 
D)  are located in the occipital lobe. 
A)  are concentrated in the macula lutea. 
B)  detect red, yellow, and blue colors. 
C)  are concerned with night vision. 
D)  are located in the occipital lobe. C

Question 4

Lysozyme,an enzyme with antimicrobial activity,is found in

Accepted Answer

A)  tears. 
B)  vitreous humor. 
C)  aqueous humor. 
D)  endolymph. 
A)  tears. 
B)  vitreous humor. 
C)  aqueous humor. 
D)  endolymph.

Question 5

The gustatory sensation is most related to the

Accepted Answer

A)  eighth cranial nerve. 
B)  rods and cones. 
C)  organ of Corti. 
D)  taste buds. 
A)  eighth cranial nerve. 
B)  rods and cones. 
C)  organ of Corti. 
D)  taste buds.

Question 6

Which of the following is defined as the involuntary rhythmic oscillating movements of the eyes?

Accepted Answer

A)  Presbyopia 
B)  Nystagmus 
C)  Emmetropia 
D)  Myopia 
A)  Presbyopia 
B)  Nystagmus 
C)  Emmetropia 
D)  Myopia

Question 7

Which of the following structures is common to both balance and hearing?

Accepted Answer

A)  Tympanic membrane 
B)  Organ of Corti 
C)  Middle ear ossicles 
D)  Mechanoreceptors 
A)  Tympanic membrane 
B)  Organ of Corti 
C)  Middle ear ossicles 
D)  Mechanoreceptors

Question 8

Which of the following structures is located outside the eye?

Accepted Answer

A)  Conjunctiva 
B)  Ciliary body 
C)  Lens 
D)  Vitreous humor 
A)  Conjunctiva 
B)  Ciliary body 
C)  Lens 
D)  Vitreous humor

Question 9

The gel-like substance that gently pushes the retina against the choroid and maintains the shape of the eyeball is

Accepted Answer

A)  aqueous humor. 
B)  vitreous humor. 
C)  lacrimal secretions. 
D)  perilymph. 
A)  aqueous humor. 
B)  vitreous humor. 
C)  lacrimal secretions. 
D)  perilymph.

Question 10

What is the function of the vestibule and the semicircular canals?

Accepted Answer

A)  Hearing 
B)  Smell 
C)  Balance 
D)  Touch and pressure 
A)  Hearing 
B)  Smell 
C)  Balance 
D)  Touch and pressure

Question 11

The levator palpebrae superioris

Accepted Answer

A)  moves the eyeball. 
B)  closes the eye. 
C)  raises the eyebrows as in the "surprised" look. 
D)  lifts the eyelids when contracted. 
A)  moves the eyeball. 
B)  closes the eye. 
C)  raises the eyebrows as in the "surprised" look. 
D)  lifts the eyelids when contracted.

Question 12

Which group is incorrect?

Accepted Answer

A)  Tunics of the eyeball: sclera, choroid, retina 
B)  General senses: pain, temperature, touch, pressure, proprioception 
C)  Special senses: hearing, sight, smell, taste, balance 
D)  Errors of refraction: myopia, farsightedness, astigmatism, glaucoma 
A)  Tunics of the eyeball: sclera, choroid, retina 
B)  General senses: pain, temperature, touch, pressure, proprioception 
C)  Special senses: hearing, sight, smell, taste, balance 
D)  Errors of refraction: myopia, farsightedness, astigmatism, glaucoma

Question 13

On its way to the retina light does not pass through this structure.

Accepted Answer

A)  Pupil 
B)  Vitreous humor 
C)  Choroid 
D)  Cornea 
A)  Pupil 
B)  Vitreous humor 
C)  Choroid 
D)  Cornea

Question 14

The vitreous humor

Accepted Answer

A)  is found in the anterior cavity of the eyeball. 
B)  is drained through the canal of Schlemm. 
C)  gently pushes the retina against the vascular choroid. 
D)  circulates from the posterior cavity into the anterior cavity through the pupil. 
A)  is found in the anterior cavity of the eyeball. 
B)  is drained through the canal of Schlemm. 
C)  gently pushes the retina against the vascular choroid. 
D)  circulates from the posterior cavity into the anterior cavity through the pupil.

Question 15

The semicircular canals are concerned with

Accepted Answer

A)  the secretion of cerumen. 
B)  equalizing pressure across the tympanic membrane. 
C)  balance. 
D)  smell. 
A)  the secretion of cerumen. 
B)  equalizing pressure across the tympanic membrane. 
C)  balance. 
D)  smell.

Question 16

Which of the following "pupil events" is a true statement?

Accepted Answer

A)  Muscarinic activation causes mydriasis. 
B)  Muscarinic blockade induces miosis. 
C)  Alpha1 activation causes the radial muscle to contract, causing mydriasis. 
D)  Pupil diameter is determined by the rectus and oblique extrinsic eye muscles. 
A)  Muscarinic activation causes mydriasis. 
B)  Muscarinic blockade induces miosis. 
C)  Alpha1 activation causes the radial muscle to contract, causing mydriasis. 
D)  Pupil diameter is determined by the rectus and oblique extrinsic eye muscles.

Question 17

Which group is incorrect?

Accepted Answer

A)  Special senses: hearing, sight, smell, taste, balance, pain, pressure 
B)  Errors of refraction: myopia, farsightedness, astigmatism, presbyopia 
C)  Structures of the inner ear: semicircular canals, vestibule, cochlea 
D)  Ossicles: malleus, incus, stapes 
A)  Special senses: hearing, sight, smell, taste, balance, pain, pressure 
B)  Errors of refraction: myopia, farsightedness, astigmatism, presbyopia 
C)  Structures of the inner ear: semicircular canals, vestibule, cochlea 
D)  Ossicles: malleus, incus, stapes

Question 18

Which of the following best describes pupillary dilation?

Accepted Answer

A)  Miosis 
B)  Refraction 
C)  Amblyopia 
D)  Mydriasis 
A)  Miosis 
B)  Refraction 
C)  Amblyopia 
D)  Mydriasis

Question 19

The fovea centralis and macula lutea

Accepted Answer

A)  secrete aqueous humor. 
B)  are richly populated with cones. 
C)  are primarily responsible for night vision. 
D)  cover the surface of the optic disc. 
A)  secrete aqueous humor. 
B)  are richly populated with cones. 
C)  are primarily responsible for night vision. 
D)  cover the surface of the optic disc.

Question 20

There is a heavy concentration of cones in this area of the retina.

Accepted Answer

A)  Fovea centralis 
B)  Iris 
C)  Optic disc 
D)  Cornea 
A)  Fovea centralis 
B)  Iris 
C)  Optic disc 
D)  Cornea

Exam 13: Sensory System

The occipital lobe

The optic nerve

Rods

Lysozyme,an enzyme with antimicrobial activity,is found in

The gustatory sensation is most related to the

Which of the following is defined as the involuntary rhythmic oscillating movements of the eyes?

Which of the following structures is common to both balance and hearing?

Which of the following structures is located outside the eye?

The gel-like substance that gently pushes the retina against the choroid and maintains the shape of the eyeball is

What is the function of the vestibule and the semicircular canals?

The levator palpebrae superioris

Which group is incorrect?

On its way to the retina light does not pass through this structure.

The vitreous humor

The semicircular canals are concerned with

Which of the following "pupil events" is a true statement?

Which group is incorrect?

Which of the following best describes pupillary dilation?

The fovea centralis and macula lutea

There is a heavy concentration of cones in this area of the retina.

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

Filters