BIOL 373L Final Exam Questions With
Correct Answers Already Passed!!
List the special senses CORRECT ANSWERS smell, taste, vision, hearing, equilibrium
What are somatic senses? CORRECT ANSWERS tactile, thermal, pain and
proprioceptive sensations
Somatic senses involve sensory receptor cells that...concentrated in sensory organs
CORRECT ANSWERS are not
Somatic senses involve sensory receptor cells are... CORRECT ANSWERS widely
distributed in the skin, muscles and joints
What diagnostic tool can be used to determine visual acuity? CORRECT ANSWERS
The Snellen Chart
What is visual acuity? CORRECT ANSWERS the degree of detail the eye can
distinguish
Which line on the Snellen chart represents the approximate visual acuity for the eye
being tested? CORRECT ANSWERS The last line without mistakes
What does myopia mean? CORRECT ANSWERS nearsightedness, defect in distance
vision
What is hyperopia? CORRECT ANSWERS farsightedness, defect in close vision
What is astigmatism? CORRECT ANSWERS The blurring or distortion of the visual
image caused by a defective curvature of the refractive surfaces of the eye
What is the cause of "colour blindness" or defective colour perception? CORRECT
ANSWERS It is caused by a deficiency in the retina's systems for converting red, blue,
or green light into receptor potentials by cones
What test can be used to measure the perception of colour? CORRECT ANSWERS
Ichikawa vision test
What is the Ichikawa test? CORRECT ANSWERS A color perception test requires one
to concentrate on a colored plate and immediately say the number which they see.
What is the most common type of "colour blindness"? CORRECT ANSWERS
Hereditary red-green deficiency
, What are the two classifications of red-green color blindness? CORRECT ANSWERS
Deutan and Protan
What is Deutan Color Blindness? CORRECT ANSWERS an anomaly of the "M" cone
such that the "M" cone effectively receives too much red light and not enough green
light; may experience confusion between colors such as green and yellow, or blue and
purple.
What is Protan Color Blindness? CORRECT ANSWERS an anomaly of the "L" cones
such that the "L" cone does not receive enough red light, and receives too much green
light; tends to see greens, yellows, oranges, reds, and browns as being more similar
shades of color than normal, especially in low light
If you are able to read the small line of print on the Snellen chart, what would your level
of visual acuity be? CORRECT ANSWERS 20/15
Are the taste buds uniformly distributed? CORRECT ANSWERS Yes, the receptors that
sense sweet, salty, sour, bitter, and umami tastes are distributed all over the tongue;
threshold sensitivity may differ across the tongue, but the intensity of sensation does
not.
What role does the olfactory sense play in tasting? CORRECT ANSWERS Our sense of
smell in responsible for about 80% of what we taste. Without our sense of smell, our
sense of taste is limited to only five distinct sensations: sweet, salty, sour, bitter and
"umami".
Why are children sometimes advised to hold their noses while swallowing liquid?
CORRECT ANSWERS When you swallow, the air is forced up your nasal passages,
activating olfactory receptor cells. Therefore, if they hold their noses, their sense of taste
is impaired, less accurate, and less intense.
Over the course of 30 seconds, does your perception of smell change? CORRECT
ANSWERS Yes, the intensity of the scent/stimuli gradually decreases, but it is still
present
When you remove the tube from under your nose, can you detect a change in olfactory
sensation? CORRECT ANSWERS Yes, different olfactory receptor cells are activated
when there is a change in stimuli
The Rinne's test is used primarily to evaluate... CORRECT ANSWERS loss of hearing
in one ear (conductive deafness).
If no damage or blockage in the middle ear, the sound will...during the Rinne test
CORRECT ANSWERS reappear
Correct Answers Already Passed!!
List the special senses CORRECT ANSWERS smell, taste, vision, hearing, equilibrium
What are somatic senses? CORRECT ANSWERS tactile, thermal, pain and
proprioceptive sensations
Somatic senses involve sensory receptor cells that...concentrated in sensory organs
CORRECT ANSWERS are not
Somatic senses involve sensory receptor cells are... CORRECT ANSWERS widely
distributed in the skin, muscles and joints
What diagnostic tool can be used to determine visual acuity? CORRECT ANSWERS
The Snellen Chart
What is visual acuity? CORRECT ANSWERS the degree of detail the eye can
distinguish
Which line on the Snellen chart represents the approximate visual acuity for the eye
being tested? CORRECT ANSWERS The last line without mistakes
What does myopia mean? CORRECT ANSWERS nearsightedness, defect in distance
vision
What is hyperopia? CORRECT ANSWERS farsightedness, defect in close vision
What is astigmatism? CORRECT ANSWERS The blurring or distortion of the visual
image caused by a defective curvature of the refractive surfaces of the eye
What is the cause of "colour blindness" or defective colour perception? CORRECT
ANSWERS It is caused by a deficiency in the retina's systems for converting red, blue,
or green light into receptor potentials by cones
What test can be used to measure the perception of colour? CORRECT ANSWERS
Ichikawa vision test
What is the Ichikawa test? CORRECT ANSWERS A color perception test requires one
to concentrate on a colored plate and immediately say the number which they see.
What is the most common type of "colour blindness"? CORRECT ANSWERS
Hereditary red-green deficiency
, What are the two classifications of red-green color blindness? CORRECT ANSWERS
Deutan and Protan
What is Deutan Color Blindness? CORRECT ANSWERS an anomaly of the "M" cone
such that the "M" cone effectively receives too much red light and not enough green
light; may experience confusion between colors such as green and yellow, or blue and
purple.
What is Protan Color Blindness? CORRECT ANSWERS an anomaly of the "L" cones
such that the "L" cone does not receive enough red light, and receives too much green
light; tends to see greens, yellows, oranges, reds, and browns as being more similar
shades of color than normal, especially in low light
If you are able to read the small line of print on the Snellen chart, what would your level
of visual acuity be? CORRECT ANSWERS 20/15
Are the taste buds uniformly distributed? CORRECT ANSWERS Yes, the receptors that
sense sweet, salty, sour, bitter, and umami tastes are distributed all over the tongue;
threshold sensitivity may differ across the tongue, but the intensity of sensation does
not.
What role does the olfactory sense play in tasting? CORRECT ANSWERS Our sense of
smell in responsible for about 80% of what we taste. Without our sense of smell, our
sense of taste is limited to only five distinct sensations: sweet, salty, sour, bitter and
"umami".
Why are children sometimes advised to hold their noses while swallowing liquid?
CORRECT ANSWERS When you swallow, the air is forced up your nasal passages,
activating olfactory receptor cells. Therefore, if they hold their noses, their sense of taste
is impaired, less accurate, and less intense.
Over the course of 30 seconds, does your perception of smell change? CORRECT
ANSWERS Yes, the intensity of the scent/stimuli gradually decreases, but it is still
present
When you remove the tube from under your nose, can you detect a change in olfactory
sensation? CORRECT ANSWERS Yes, different olfactory receptor cells are activated
when there is a change in stimuli
The Rinne's test is used primarily to evaluate... CORRECT ANSWERS loss of hearing
in one ear (conductive deafness).
If no damage or blockage in the middle ear, the sound will...during the Rinne test
CORRECT ANSWERS reappear
