Structure of the Eyeball quiz #2 Flashcards
Structure of the Eyeball quiz #2
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Which of the following is the function of the cornea? A) Absorbs light B) Focuses light onto the retina C) Provides blood supply D) Contains photoreceptors
B) Focuses light onto the retina What are the three main layers of the eyeball, and what are their primary functions?
The three main layers of the eyeball are the fibrous layer (provides structure, protection, and muscle attachment), the vascular layer (controls light entry and supplies blood), and the inner layer (retina, which contains photosensitive and nerve cells for vision). Describe the components of the vascular layer of the eye and their functions.
The vascular layer includes the iris (controls light entry), the ciliary body (changes lens shape for focusing), and the choroid (provides blood supply and absorbs stray light to prevent vision artifacts).
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