Anatomy and Eye Structures Quiz

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

It is responsible for maintaining pressure within the eye

What is the role of the conjunctiva in the eye?

It lines the inner surfaces of the eyelids and the outer surface of the sclera

What defines the blind spot in the visual field?

It corresponds to the retina’s optic disc or optic nerve head

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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