Question 1

Identify and briefly describe the function of the labeled structures in the human eye pictured here.  
A:
B:
C:
D:
E:
F:
G:
H:
I:
J:

Accepted Answer

A: Sclera: protects and supports the eye...

Question 2

The ciliary muscle

Accepted Answer

A)   is extremely sensitive to light and responsible for night vision.
B)   is the part of the eye that contains rods, cones, and bipolar cells.
C)   controls the shape of the lens to maintain a clear image of focus at various distances.
D)   is the part of the inner ear that recognizes rotational equilibrium.
E)   is the internal part of the cochlea with hair cells that are stimulated by sound waves.F) All of the above
G) C) and E)

Question 3

Which of the following statements about the rods and cones in the eye is NOT true?

Accepted Answer

A)   The cones are better able to detect shades of color.
B)   The rods are involved in black and white vision.
C)   Rods and cones work together to detect the full image.
D)   Rhodopsin is the molecule associated with vision.
E)   Rods are activated by bright light and cones are better suited to night vision.F) A) and C)
G) B) and C)

Question 4

The sense of smell is unique because it

Accepted Answer

A)   may be associated with vivid memories.
B)   has direct connections to the limbic system and associated emotions.
C)   works in conjunction with the sense of taste to produce a combined smell-taste effect.
D)   All of the choices are correct.E) A) and C)
F) A) and B)

Question 5

If light rays are not focused evenly on the retina, a fuzzy image is formed. This condition is called

Accepted Answer

A)   nearsightedness.
B)   farsightedness.
C)   astigmatism.
D)   cataracts.
E)   conduction deafness.F) C) and E)
G) A) and B)

Question 6

Benign positional vertigo is due to

Accepted Answer

A)   the formation of particles in the semicircular canal. These particles will stimulate the steroeocilia producing a sensation of movement when there is actually no movement.
B)   the formation of particles in the semicircular canal resulting in an inner ear infection.
C)   the formation of particles in the cochlea. These particles will stimulate the steroeocilia producing a sensation of movement when there is actually no movement.
D)   the formation of particles in the malleus. These particles will stimulate the steroeocilia producing a sensation of movement when there is actually no movement.
E)   the calcification of the malleus producing a decrease in the conduction of sound.F) A) and E)
G) None of the above

Question 7

Which of the following statements about the process of hearing is true?

Accepted Answer

A)   Hearing is not dependent on the inner ear.
B)   All parts of the organ of Corti hear all ranges of sound.
C)   Loud music cannot damage your ears.
D)   Hearing is dependent on mechanical pressure.
E)   Sound is similar to light insofar as it is transmitted through the vacuum of space.F) B) and C)
G) A) and D)

Question 8

What are the semicircular canals?

Accepted Answer

A)   the point of the eye at which color vision is most acute
B)   the part of the eye that contains rods, cones, and bipolar cells
C)   the part of the inner ear that recognizes rotational equilibrium and movement
D)   the part of the choroid coat of the eye that is attached to the lens and the iris
E)   the internal part of the cochlea with hair cells that are stimulated by sound wavesF) A) and E)
G) C) and D)

Question 9

When you look at an image, it is inverted on the back of the retina and yet appears right-side-up when perceived in the brain. This change has occurred in

Accepted Answer

A)   the retina which integrates the visual image.
B)   the ganglionic cells.
C)   the rods and cones themselves.
D)   the visual regions of the brain.
E)   the lens.F) A) and B)
G) A) and D)

Question 10

Which of the following sensations would involve a chemoreceptor?

Accepted Answer

A)   smell
B)   vision
C)   taste
D)   All of the answers are correct.
E)   Smell and taste only are correct.F) B) and E)
G) None of the above

Question 11

Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?

Accepted Answer

A)   auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve
B)   auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve
C)   auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve
D)   auditory canal-tympanic membrane-oval window-cochlea-malleus-incus-stapes-cochlear nerve
E)   auditory canal-malleus-incus-stapes-oval window-tympanic membrane-cochlea-cochlear nerveF) B) and E)
G) B) and C)

Question 12

Arthropods

Accepted Answer

A)   have camera-type eyes.
B)   have eyespots that sense the direction and intensity of light.
C)   make use of a wider range of the electromagnetic spectrum than humans.
D)   have compound eyes composed of independent units called ommatidia.
E)   All of the answers are correct.F) B) and C)
G) A) and D)

Question 13

The structure in the eye that is similar to a camera diaphragm, regulating the size of the opening for light is the

Accepted Answer

A)   pupil.
B)   retina.
C)   iris.
D)   ciliary muscle.
E)   lens.F) A) and E)
G) A) and D)

Question 14

The sclera is continuous with the

Accepted Answer

A)   cornea.
B)   iris.
C)   retina.
D)   choroid coat.
E)   fovea centralis.F) A) and D)
G) A) and B)

Question 15

The sense of rotational equilibrium is accomplished by hair cells found in the

Accepted Answer

A)   cochlear duct.
B)   outer ear.
C)   middle ear.
D)   ampullae.
E)   organ of Corti.F) A) and C)
G) B) and C)

Question 16

List the structures sound will pass through as it goes into the human ear.

Accepted Answer

1. Outer ear consists of the p...

Question 17

If a person were to suffer a second degree burn to their fingers, which group of receptors would suffer the greatest amount of damage?

Accepted Answer

A)   Meissner corpuscles
B)   Merkel disks
C)   Pacinian corpuscles
D)   Ruffini endingsE) None of the above
F) A) and D)

Question 18

At night, we see primarily black and white and shades of gray, except near lights where some color is still evident. This is outward evidence of what internal anatomy?

Accepted Answer

A)   There are more cones than rods and cones are very sensitive to light.
B)   Cones detect the color of an object, and are activated by bright light.
C)   The retina has a circadian rhythm.
D)   The lens filters differentially the many wavelengths of light.
E)   The vitreous humor filters much light, and daytime intensity is necessary to get colored light through to the retina.F) A) and B)
G) C) and D)

Question 19

As people age, they often have trouble seeing near objects. This farsightedness is treated by

Accepted Answer

A)   radial keratotomy.
B)   an unevenly ground lens to compensate for an uneven cornea.
C)   cataract surgery.
D)   wearing concave lenses to refocus the image on the retina.
E)   wearing convex lenses to refocus the image on the retina.F) A) and B)
G) A) and C)

Question 20

Which of the following eye conditions is NOT treated with corrective lenses?

Accepted Answer

A)   farsightedness
B)   cataracts
C)   nearsightedness
D)   astigmatism
E)   Nearsightedness and astigmatism are not treated with corrective lens.F) A) and D)
G) A) and C)

Exam 38: Sense Organs

If a person were to suffer a second degree burn to their fingers, which group of receptors would suffer the greatest amount of damage?

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As people age, they often have trouble seeing near objects. This farsightedness is treated by

Correct AnswerverifiedShow Answer

The sense of smell is unique because it

Correct AnswerverifiedShow Answer

Which of the following eye conditions is NOT treated with corrective lenses?

Correct AnswerverifiedShow Answer

At night, we see primarily black and white and shades of gray, except near lights where some color is still evident. This is outward evidence of what internal anatomy?

Correct AnswerverifiedShow Answer

The structure in the eye that is similar to a camera diaphragm, regulating the size of the opening for light is the

Correct AnswerverifiedShow Answer

Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?

Correct AnswerverifiedShow Answer

The sense of rotational equilibrium is accomplished by hair cells found in the

Correct AnswerverifiedShow Answer

Which of the following statements about the process of hearing is true?

Correct AnswerverifiedShow Answer

The sclera is continuous with the

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Arthropods

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What are the semicircular canals?

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Benign positional vertigo is due to

Correct AnswerverifiedShow Answer

If light rays are not focused evenly on the retina, a fuzzy image is formed. This condition is called

Correct AnswerverifiedShow Answer

Which of the following sensations would involve a chemoreceptor?

Correct AnswerverifiedShow Answer

Identify and briefly describe the function of the labeled structures in the human eye pictured here. A: B: C: D: E: F: G: H: I: J:

Correct AnswerverifiedA: Sclera: protects and supports the eye...View AnswerShow Answer

Which of the following statements about the rods and cones in the eye is NOT true?

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The ciliary muscle

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When you look at an image, it is inverted on the back of the retina and yet appears right-side-up when perceived in the brain. This change has occurred in

Correct AnswerverifiedShow Answer

List the structures sound will pass through as it goes into the human ear.

Correct Answerverified1. Outer ear consists of the p...View AnswerShow Answer

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A: Sclera: protects and supports the eye...
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Correct Answer
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1. Outer ear consists of the p...
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