5.4.3
Presentation
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Nicole Rolland
Used 1+ times
FREE Resource
32 Slides • 7 Questions
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1. Conjunctiva- 2. cornea- 3.Lacrimal duct 4. Lacrimal gland
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Iris-
Pupil-
Iris regulation in low light: when pupils dilate...
Iris regulation in bright light: when pupils contract...
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Multiple Choice
On a bright sunny day, Stella was doing yardwork. When Stella got thirsty, she went into her house to grab a water bottle from the basement. Which of the following statements describes how Stella‘s eyes most likely responded to moving from a bright environment to a dim environment?
The radial muscles in the iris contracted, causing Stella‘s pupils to dilate.
The radial muscles in the iris contracted, causing Stella‘s pupils to constrict.
The circular muscles in the iris contracted, causing Stella‘s pupils to dilate.
The circular muscles in the iris contracted, causing Stella‘s pupils to constrict.
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The Lens
When viewing distant objects, the ciliary muscle_______, which causes the lens to _________.
When viewing close objects, the ciliary muscle _________, which causes the lens to
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The Retina
Rods:
Cones:
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Humors of the Eye
Aqueous humor-
Vitreous humor-
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Multiple Choice
Which of the following statements about aqueous humor is correct?
Aqueous humor is a watery fluid located in the vitreous chamber.
Aqueous humor is a watery fluid located in the anterior chamber.
Aqueous humor is a jellylike fluid located in the vitreous chamber.
Aqueous humor is a jellylike fluid located in the anterior chamber.
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Multiple Choice
When James had his vision tested, he could read the letters on the Snellen chart easily when the chart was close. However, when James tried to read the letters when the chart was far away, James had difficulty reading many of the letters.
Based on the results of the vision test, is James more likely to be diagnosed with myopia or hyperopia?
hyperopia, or nearsightedness, because distant objects appear blurry with hyperopia
hyperopia, or farsightedness, because near objects appear blurry with hyperopia
myopia, or farsightedness, because near objects appear blurry with myopia
myopia, or nearsightedness, because distant objects appear blurry with myopia
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Visual Acuity
Myopia-
Hyperopia-
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Hotspot
Identify the lens in the image of the eye below.
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Reorder
Drag to sort the structures of the eye in order from the front of the eye to the retina.
cornea
anterior chamber
lens
vitreous chamber
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Multiple Choice
If a person‘s irises were damaged, how might the person‘s eyesight be affected?
The person could not send electrical signals about sight to the brain.
The person would not be able to tell colors apart from one another.
The person‘s eye color would change to a darker color than they were originally.
The person would not be able to regulate the amount of light entering the eye.
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Categorize
nearsightedness
eye bends light too much
farsightedness
eye does not bend light enough
distant objects appear blurry
nearby objects appear blurry
Sort the statements according to whether the statement describes myopia or hyperopia.
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