Anatomy and Eye Structures Quiz
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Questions and Answers

What is the function of the anterior chamber in the eye?

  • It is responsible for maintaining pressure within the eye (correct)
  • It is a branch of biology and medicine
  • It is where photoreceptors are present
  • It is the center of curvature of the cornea

    • What is the role of the conjunctiva in the eye?

  • It is where no photoreceptors are present
  • It lines the inner surfaces of the eyelids and the outer surface of the sclera (correct)
  • It is the center of curvature of the cornea
  • It maintains the pressure within the eye

    • What defines the blind spot in the visual field?

  • It is a branch of biology and medicine
  • It is a fluid-filled space inside the eye between the iris and cornea
  • It corresponds to the retina’s optic disc or optic nerve head (correct)
  • It is where photoreceptors are present

    • What is the location of the drainage angle in the eye?

    <p>Between the cornea and the iris</p> Signup and view all the answers

    What characterizes the aqueous humor in the eye?

    <p>It is a clear, watery fluid between the lens and cornea</p> Signup and view all the answers

    Which structure is named for its angular shape in relation to different glaucoma names?

    <p>Drainage Angle</p> Signup and view all the answers

    Which part of the eye accounts for approximately 1/3 of the eye’s total focusing power?

    <p>Crystalline Lens</p> Signup and view all the answers

    What is the clinical sign that indicates a large number of nerve fibers in the optic nerve have been lost?

    <p>Disk cupping</p> Signup and view all the answers

    What is the function of the eyelid in relation to the eye?

    <p>To distribute tears over the cornea while blinking</p> Signup and view all the answers

    What is the purpose of the lacrimal gland?

    <p>To produce a watery secretion forming the tear film</p> Signup and view all the answers

    What is the function of the iris in relation to light entering the eye?

    <p>To help regulate the amount of light entering the eye</p> Signup and view all the answers

    What is the central portion of the retina required for high resolution vision called?

    <p>Macula</p> Signup and view all the answers

    What causes macular edema, making it hard to see?

    <p>Injury or disease</p> Signup and view all the answers

    Which gland is a major producer of a watery secretion forming the middle, thickest layer of the tear film?

    <p>Lacrimal Gland</p> Signup and view all the answers

    What is the line that encircles the eyeball equidistant from the two poles called?

    <p>Limbus</p> Signup and view all the answers

    What is the swelling of the macula that makes it hard to see called?

    <p>Macular edema</p> Signup and view all the answers

    What is the function of the conjunctiva in the eye?

    <p>Protection of the inner surfaces of the eyelids</p> Signup and view all the answers

    Where is the anterior chamber located in the eye?

    <p>Between the cornea and iris</p> Signup and view all the answers

    What characterizes the blind spot in the visual field?

    <p>Absence of photoreceptors and light sensitivity</p> Signup and view all the answers

    Which structure is named for its angular shape in relation to different glaucoma names?

    <p>Drainage angle</p> Signup and view all the answers

    What is the center of curvature of the cornea called?

    <p>Anterior pole</p> Signup and view all the answers

    What is the clear, watery fluid between the lens and cornea called?

    <p>Aqueous humor</p> Signup and view all the answers

    What is the function of the macula in the human eye?

    <p>Required for high resolution vision</p> Signup and view all the answers

    What is the role of the crystalline lens in the eye?

    <p>Focuses light rays onto the retina</p> Signup and view all the answers

    What characterizes the foveola in the human eye?

    <p>Consists of very compact cones, thinner and more rod-like in appearance than cones elsewhere</p> Signup and view all the answers

    What does the iris do in relation to light entering the eye?

    <p>Regulates the amount of light that enters the eye</p> Signup and view all the answers

    What is the function of the lacrimal gland in the eye?

    <p>Produces a watery secretion which forms the middle, thickest layer of the tear film</p> Signup and view all the answers

    Which part of the eye accounts for approximately 1/3 of the eye’s total focusing power?

    <p>Crystalline Lens</p> Signup and view all the answers

    What is the geometric axis in the human eye?

    <p>A line drawn from the fovea centralis thru the center of the rotation of the eyeball to a point on the cornea slightly nasal</p> Signup and view all the answers

    Where are the tear glands located?

    <p>In and near the eye and eyelids</p> Signup and view all the answers

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