Question 1

Which of the following moves in response to the vibration of the stapes?

Accepted Answer

A) Tympanic membrane 
B) Oval window 
C) Malleus 
D) Hammer 
A) Tympanic membrane 
B) Oval window 
C) Malleus 
D) Hammer

Question 2

A nociceptor detects

Accepted Answer

A) pain. 
B) light. 
C) radiation. 
D) [H+]. 
A) pain. 
B) light. 
C) radiation. 
D) [H+].

Question 3

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 4

What is the name of the specialized area of a sensory neuron that detects a specific stimulus?

Accepted Answer

A) Tract 
B) Receptor 
C) Dorsal root 
D) Node of Ranvier 
A) Tract 
B) Receptor 
C) Dorsal root 
D) Node of Ranvier

Question 5

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 6

Cerumen is

Accepted Answer

A) an inner ear secretion. 
B) secreted by the organ of Corti. 
C) found in the external ear. 
D) drained by the Eustachian tube. 
A) an inner ear secretion. 
B) secreted by the organ of Corti. 
C) found in the external ear. 
D) drained by the Eustachian tube.

Question 7

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.

Question 8

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 9

Contraction of the orbicularis oculi

Accepted Answer

A) raises the eyelid. 
B) is innervated by the optic nerve. 
C) closes the eye. 
D) flattens the lens during refraction. 
A) raises the eyelid. 
B) is innervated by the optic nerve. 
C) closes the eye. 
D) flattens the lens during refraction.

Question 10

Which structure separates the outer ear from the middle ear?

Accepted Answer

A) Tympanic membrane 
B) Pinna 
C) Round window 
D) Oval window 
A) Tympanic membrane 
B) Pinna 
C) Round window 
D) Oval window

Question 11

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 12

Which of the following is not true of the lens?

Accepted Answer

A) Changes in the shape of the lens affect the refraction of light. 
B) Clouding of the lens is called a cataract. 
C) Cataracts impair vision by decreasing the amount of light that reaches the retina. 
D) Its shape is changed by contraction of the muscles of the iris. 
A) Changes in the shape of the lens affect the refraction of light. 
B) Clouding of the lens is called a cataract. 
C) Cataracts impair vision by decreasing the amount of light that reaches the retina. 
D) Its shape is changed by contraction of the muscles of the iris.

Question 13

In which condition is the eyelid not completely raised,thereby making the person appear sleepy?

Accepted Answer

A) Glaucoma 
B) Cataracts 
C) Ptosis of the lid 
D) Lid lag 
A) Glaucoma 
B) Cataracts 
C) Ptosis of the lid 
D) Lid lag

Question 14

The macula lutea,fovea centralis,and photoreceptors are most associated with this structure.

Accepted Answer

A) Choroid 
B) Optic chiasm 
C) Lens 
D) Retina 
A) Choroid 
B) Optic chiasm 
C) Lens 
D) Retina

Question 15

An anticholinergic drug such as atropine

Accepted Answer

A) causes miosis. 
B) causes the circular muscles to contract. 
C) causes ptosis of the eyelid. 
D) dilates the pupil. 
A) causes miosis. 
B) causes the circular muscles to contract. 
C) causes ptosis of the eyelid. 
D) dilates the pupil.

Question 16

An increase of intraocular pressure is most likely to cause

Accepted Answer

A) cataracts. 
B) damage to the retina,leading to blindness. 
C) macular degeneration. 
D) night blindness. 
A) cataracts. 
B) damage to the retina,leading to blindness. 
C) macular degeneration. 
D) night blindness.

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

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 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

The four rectus muscles and two oblique muscles

Accepted Answer

A) determine pupillary size. 
B) move the eyeball. 
C) are innervated by CNs III,IV,and VI. 
D) More than one of the above are true. 
A) determine pupillary size. 
B) move the eyeball. 
C) are innervated by CNs III,IV,and VI. 
D) More than one of the above are true.

Exam 13: Sensory System

Which of the following moves in response to the vibration of the stapes?

A nociceptor detects

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

What is the name of the specialized area of a sensory neuron that detects a specific stimulus?

Which of the following structures secretes tears?

Cerumen is

Rods

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

Contraction of the orbicularis oculi

Which structure separates the outer ear from the middle ear?

Which of the following is least related to the retina?

Which of the following is not true of the lens?

In which condition is the eyelid not completely raised,thereby making the person appear sleepy?

The macula lutea,fovea centralis,and photoreceptors are most associated with this structure.

An anticholinergic drug such as atropine

An increase of intraocular pressure is most likely to cause

Which ossicle picks up vibrations from the tympanic membrane?

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

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

The four rectus muscles and two oblique muscles

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

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Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

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Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

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Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Human Development and Heredity

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