Eye Anatomy Quiz
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Eye Anatomy Quiz

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@UndauntedOrientalism

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Questions and Answers

What is the direction of the medial wall's extension from its stem?

  • Posteriorly
  • Directly anterior (correct)
  • Laterally
  • Medially

    • What is the angle of divergence of the lateral wall from the medial wall?

  • 90 degrees
  • 30 degrees
  • 45 degrees (correct)
  • 60 degrees

    • What is the point where the medial wall extends from?

  • The midpoint
  • The apex (correct)
  • The base
  • The lateral edge

    • What is the relationship between the medial wall and the lateral wall?

    <p>The medial wall diverges from the lateral wall</p> Signup and view all the answers

    What is the shape of the medial wall?

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

    What is the outer coat of the eye?

    <p>The sclera</p> Signup and view all the answers

    What is the function of the orbit?

    <p>To hold the eye in place</p> Signup and view all the answers

    What is the sleeve also referred to as in most instruments?

    <p>Vergence mirror</p> Signup and view all the answers

    What is the conjunctiva?

    <p>A layer of tissue that lines the eyelids</p> Signup and view all the answers

    What is the purpose of moving the bulb up or down?

    <p>To change the focus control</p> Signup and view all the answers

    What is the uvea?

    <p>The middle coat of the eye</p> Signup and view all the answers

    What is the relationship between the sleeve and the focus control?

    <p>The sleeve changes the focus control</p> Signup and view all the answers

    What is the primary function of the sleeve in most instruments?

    <p>To modify the focus control</p> Signup and view all the answers

    What is the cornea?

    <p>The clear front layer of the eye</p> Signup and view all the answers

    How does the sleeve change the focus control?

    <p>By moving the bulb up or down</p> Signup and view all the answers

    What is the purpose of placing lenses in the path of the observed reflex?

    <p>To measure the conditions of the reflex</p> Signup and view all the answers

    What is observed when placing lenses in its path?

    <p>The reflex and the lenses</p> Signup and view all the answers

    What is the result of placing lenses in the path of the observed reflex?

    <p>Measurement of the reflex conditions</p> Signup and view all the answers

    Why are lenses used in the observation of the reflex?

    <p>To measure the conditions of the reflex</p> Signup and view all the answers

    What is the purpose of measuring the conditions of the reflex?

    <p>To understand the properties of the reflex</p> Signup and view all the answers

    What happens when you add plus to pull in the FP?

    <p>The emerging rays converge</p> Signup and view all the answers

    What do you see in the scope when the FP converges?

    <p>NEUT 9</p> Signup and view all the answers

    What is the purpose of adding plus to the FP?

    <p>To converge the emerging rays</p> Signup and view all the answers

    What is the relationship between the FP and the scope?

    <p>The FP converges to the scope</p> Signup and view all the answers

    What happens when the FP reaches the scope?

    <p>You see NEUT 9</p> Signup and view all the answers

    Study Notes

    Eye Structures

    • The eyelids are a part of the eye's anatomy.
    • The conjunctiva is another component of the eye.
    • The orbit is a bony cavity that contains and protects the eye.

    Eye Coats

    • The cornea is the outermost coat of the eye.
    • The sclera is also an outer coat of the eye.

    Middle Coat

    • The uvea is the middle coat of the eye.

    Orbit Walls

    • The medial wall of the orbit extends directly anterior from its stem or apex.
    • The lateral wall of the orbit diverges at an angle of about 45 degrees.

    Focus Adjustment

    • In most instruments, the sleeve changes the focus control by moving the bulb up or down.
    • To measure certain conditions, lenses are placed in the path of the observed reflex.
    • Plus lenses are added to converge the emerging rays and pull in the FP (far point) until it reaches the scope, at which point NEUT (neutral) is seen.

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    Description

    Test your knowledge of the different parts of the human eye, including the eyelids, conjunctiva, orbit, cornea, sclera, and uvea. Identify and learn the functions of each component.

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