functions of every part of the eye Flashcards
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What is the function of the cornea?
The cornea refracts light and provides a protective barrier for the eye.
True or False: The iris controls the size of the pupil.
True
What part of the eye is responsible for focusing light onto the retina?
The lens
Fill in the blank: The _______ is the colored part of the eye that regulates light entry.
iris
What is the purpose of the pupil?
The pupil allows light to enter the eye.
Which part of the eye contains photoreceptor cells?
The retina
True or False: The sclera is the transparent front part of the eye.
False
What is the role of the vitreous humor?
The vitreous humor maintains the shape of the eye and provides support to the retina.
What is the function of the macula?
The macula is responsible for central vision and visual acuity.
Multiple Choice: Which part of the eye is responsible for night vision? A) Retina B) Cornea C) Lens D) Sclera
A) Retina
What does the term ‘aqueous humor’ refer to?
Aqueous humor is the fluid in the anterior chamber of the eye that helps maintain intraocular pressure.
Fill in the blank: The _______ is the area of the retina where vision is sharpest.
fovea
True or False: The optic nerve transmits visual information to the brain.
True
What is the main function of the conjunctiva?
The conjunctiva protects and lubricates the eye.
Which part of the eye is primarily responsible for color vision?
The cones in the retina
What is the role of the ciliary body?
The ciliary body controls the shape of the lens for focusing.
Multiple Choice: Which structure is NOT part of the eye? A) Cornea B) Retina C) Cerebellum D) Iris
C) Cerebellum
True or False: The lens is flexible and can change shape to focus on objects at different distances.
True
What is the function of the tear film?
The tear film provides moisture, protection, and nourishment to the eye.
Fill in the blank: The _______ is the outermost layer of the eye.
sclera
What is the function of the rods in the retina?
Rods are responsible for vision in low light conditions.
Which part of the eye is involved in peripheral vision?
The retina
True or False: The fovea contains a high concentration of rods.
False
What is the purpose of the lens adjusting its shape?
To focus light on the retina for clear vision.
