Question 1

The external auditory canal

Accepted Answer

A)  connects the pharynx (throat) and the middle ear. 
B)  connects the cochlea and the vestibule. 
C)  connects all three semicircular canals. 
D)  ends at the tympanic membrane. 
A)  connects the pharynx (throat) and the middle ear. 
B)  connects the cochlea and the vestibule. 
C)  connects all three semicircular canals. 
D)  ends at the tympanic membrane.

Question 2

Which ossicle sits in the oval window?

Accepted Answer

A)  Malleus 
B)  Hammer 
C)  Stapes 
D)  Incus 
A)  Malleus 
B)  Hammer 
C)  Stapes 
D)  Incus

Question 3

Eyelids are described by which of the following?

Accepted Answer

A)  Palpebrae and canthi (medial and lateral) 
B)  Circular and radial muscles 
C)  Cornea and sclera 
D)  Accommodation and convergence 
A)  Palpebrae and canthi (medial and lateral) 
B)  Circular and radial muscles 
C)  Cornea and sclera 
D)  Accommodation and convergence

Question 4

Photoreceptors detect

Accepted Answer

A)  heat. 
B)  acid. 
C)  light. 
D)  tissue distortion. 
A)  heat. 
B)  acid. 
C)  light. 
D)  tissue distortion.

Question 5

Which of the following is considered the blind spot?

Accepted Answer

A)  Macula lutea 
B)  Optic chiasm 
C)  Fovea centralis 
D)  Optic disc 
A)  Macula lutea 
B)  Optic chiasm 
C)  Fovea centralis 
D)  Optic disc

Question 6

Contraction of the radial muscles of the iris causes

Accepted Answer

A)  mydriasis. 
B)  pinpoint pupils. 
C)  both eyeballs to gaze skyward. 
D)  both eyeballs to deviate medially. 
A)  mydriasis. 
B)  pinpoint pupils. 
C)  both eyeballs to gaze skyward. 
D)  both eyeballs to deviate medially.

Question 7

Olfaction refers to the sense of

Accepted Answer

A)  vision. 
B)  taste. 
C)  smell. 
D)  equilibrium. 
A)  vision. 
B)  taste. 
C)  smell. 
D)  equilibrium.

Question 8

Retrolental fibroplasia or the retinopathy of prematurity is

Accepted Answer

A)  synonymous with congenital cataracts. 
B)  caused by continuous high doses of oxygen administered in an attempt to relieve hypoxemia. 
C)  caused by corneal scarring sustained during the birth process. 
D)  induced by an elevation of intracranial pressure and compression of the primary visual cortex. 
A)  synonymous with congenital cataracts. 
B)  caused by continuous high doses of oxygen administered in an attempt to relieve hypoxemia. 
C)  caused by corneal scarring sustained during the birth process. 
D)  induced by an elevation of intracranial pressure and compression of the primary visual cortex.

Question 9

Which of the following structures secretes tears?

Accepted Answer

A)  Lacrimal gland 
B)  Optic disc 
C)  Canal of Schlemm 
D)  Ciliary body 
A)  Lacrimal gland 
B)  Optic disc 
C)  Canal of Schlemm 
D)  Ciliary body

Question 10

Which of the following is least related to the retina?

Accepted Answer

A)  Rods and cones 
B)  Fovea centralis 
C)  Cornea 
D)  Macula lutea 
A)  Rods and cones 
B)  Fovea centralis 
C)  Cornea 
D)  Macula lutea

Question 11

Which of the following is one of the special senses?

Accepted Answer

A)  Touch 
B)  Pain 
C)  Balance 
D)  Proprioception 
A)  Touch 
B)  Pain 
C)  Balance 
D)  Proprioception

Question 12

What is the effect of contraction and relaxation of the ciliary muscle?

Accepted Answer

A)  Dilated pupil 
B)  Change in the shape of the lens 
C)  Raised eyelid 
D)  Blinking 
A)  Dilated pupil 
B)  Change in the shape of the lens 
C)  Raised eyelid 
D)  Blinking

Question 13

Bending of light waves is

Accepted Answer

A)  called convergence. 
B)  the function of the lens. 
C)  called accommodation. 
D)  determined by CNs III, IV, and VI. 
A)  called convergence. 
B)  the function of the lens. 
C)  called accommodation. 
D)  determined by CNs III, IV, and VI.

Question 14

Aqueous humor

Accepted Answer

A)  is secreted by the macula lutea. 
B)  circulates in the space between the choroid and retina. 
C)  is drained through the canal of Schlemm. 
D)  gently pushes the retina against the choroid. 
A)  is secreted by the macula lutea. 
B)  circulates in the space between the choroid and retina. 
C)  is drained through the canal of Schlemm. 
D)  gently pushes the retina against the choroid.

Question 15

The receptors for hearing and balance

Accepted Answer

A)  when activated send electrical signals (action potentials) along CN VIII. 
B)  when activated send action potentials to the occipital lobe. 
C)  activate only the cochlear nerves. 
D)  are middle ear structures. 
A)  when activated send electrical signals (action potentials) along CN VIII. 
B)  when activated send action potentials to the occipital lobe. 
C)  activate only the cochlear nerves. 
D)  are middle ear structures.

Question 16

What is the location of the semicircular canals and the cochlea?

Accepted Answer

A)  Inner ear 
B)  Middle ear 
C)  Outer ear 
D)  Pharynx 
A)  Inner ear 
B)  Middle ear 
C)  Outer ear 
D)  Pharynx

Question 17

Which ossicle picks up vibrations from the tympanic membrane?

Accepted Answer

A)  Stapes 
B)  Malleus 
C)  Stirrup 
D)  Incus 
A)  Stapes 
B)  Malleus 
C)  Stirrup 
D)  Incus

Question 18

The organ of Corti

Accepted Answer

A)  is an exocrine gland that secretes cerumen. 
B)  contains mechanoreceptors. 
C)  is the receptor for balance or equilibrium. 
D)  is a middle ear structure. 
A)  is an exocrine gland that secretes cerumen. 
B)  contains mechanoreceptors. 
C)  is the receptor for balance or equilibrium. 
D)  is a middle ear structure.

Question 19

Which of the following has no anatomical connection with the middle ear?

Accepted Answer

A)  Tympanic membrane 
B)  Endolymph 
C)  Eustachian tube 
D)  Oval window 
A)  Tympanic membrane 
B)  Endolymph 
C)  Eustachian tube 
D)  Oval window

Question 20

Which layer of the eyeball supplies blood to the retina?

Accepted Answer

A)  Rods and cones 
B)  Sclera 
C)  Choroid 
D)  Iris 
A)  Rods and cones 
B)  Sclera 
C)  Choroid 
D)  Iris

Exam 13: Sensory System

The external auditory canal

Which ossicle sits in the oval window?

Eyelids are described by which of the following?

Photoreceptors detect

Which of the following is considered the blind spot?

Contraction of the radial muscles of the iris causes

Olfaction refers to the sense of

Retrolental fibroplasia or the retinopathy of prematurity is

Which of the following structures secretes tears?

Which of the following is least related to the retina?

Which of the following is one of the special senses?

What is the effect of contraction and relaxation of the ciliary muscle?

Bending of light waves is

Aqueous humor

The receptors for hearing and balance

What is the location of the semicircular canals and the cochlea?

Which ossicle picks up vibrations from the tympanic membrane?

The organ of Corti

Which of the following has no anatomical connection with the middle ear?

Which layer of the eyeball supplies blood to 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

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