Podcast
Questions and Answers
What is the function of the cornea?
What is the function of the cornea?
- Fills the eye with a jelly-like substance
- Transmits electrical impulses to the brain
- Protects the pupil and iris (correct)
- Regulates light entering the eye
What does the sclera do?
What does the sclera do?
Protects the eye and holds it together.
What regulates the amount of light that enters the eye?
What regulates the amount of light that enters the eye?
Pupil.
What is the function of the lens?
What is the function of the lens?
Which of the following functions does the aqueous humor serve?
Which of the following functions does the aqueous humor serve?
What is the iris?
What is the iris?
What does the ciliary body do?
What does the ciliary body do?
What is the role of the vitreous humor?
What is the role of the vitreous humor?
Where is the retina located and what does it do?
Where is the retina located and what does it do?
What is the fovea responsible for?
What is the fovea responsible for?
What are rods and what do they do?
What are rods and what do they do?
What is the function of cones?
What is the function of cones?
What does the optic nerve connect?
What does the optic nerve connect?
What is the blind spot?
What is the blind spot?
Study Notes
Parts of the Eye
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Cornea
- Transparent layer covering the pupil and iris.
- Protects internal structures and assists in focusing light.
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Sclera
- Tough, white outer layer of the eye.
- Provides protection and maintains the eye's shape.
-
Pupil
- Circular muscle linked to the iris.
- Adjusts light entering the eye; enlarges in low light conditions.
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Lens
- Clear, convex structure located behind the pupil.
- Refracts light and changes shape to focus images on the retina.
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Aqueous Humor
- Clear fluid found between the cornea and lens.
- Helps focus light and maintains eye shape.
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Iris
- Circular muscle that gives the eye its color.
- Works with the pupil to manage light intake.
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Ciliary Body
- Ring of small muscles surrounding the lens.
- Alters lens shape for focusing on various distances.
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Vitreous Humor
- Gel-like substance filling the eyeball.
- Helps maintain the eyeball's shape.
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Retina
- Light-sensitive layer at the back of the eye composed of photoreceptors.
- Converts images into electrical impulses for the brain.
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Fovea
- Area on the retina with a high concentration of photoreceptors.
- Enables sharp, detailed vision.
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Photo-receptors: Rods
- Approximately 120 million in the eye.
- Sensitive to low light and detect shapes and movements.
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Photo-receptors: Cones
- About 6 million in the eye.
- Detect color (red, green, blue) and function in bright light.
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Optic Nerve
- Bundle of nerves connecting the retina to the brain.
- Transmits visual information for image processing.
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Blind Spot
- Area where the optic nerve attaches to the retina; lacks photoreceptors.
- Responsible for a visual gap that the brain fills using other cues.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Explore the parts of the eye with these flashcards. Each card presents a specific component like the cornea and sclera, detailing its structure and function. Ideal for students learning about human anatomy and physiology.
