12 Questions
What is the primary function of the cornea in the eyeball?
To refract light and contribute to the eye's refractive power
What is the function of the ciliary muscle in the eye?
To change the shape of the lens and increase its refractive power
What is the name of the central depression in the macula lutea?
Fovea centralis
What is the origin of the aqueous humor in the eye?
It is produced by the ciliary processes
Which nerve is responsible for supplying the sphincter pupillae muscle?
Oculomotor nerve
What is the name of the junction between the cornea and sclera?
Limbus
What is the consequence of obstruction to the draining of the aqueous humor?
Glaucoma with consequent blindness
What is the primary function of the ciliary processes?
To attach the lens to the circumference
What is the result of the ciliary muscle contracting during near reflex?
The lens assumes a more globular shape
What is the purpose of the constriction of the pupil during near reflex?
To ensure that light rays pass through the central part of the lens
What is the result of the aging process on the lens during presbyopia?
The lens becomes denser and less elastic and the ability to accommodate is lessened
What is the role of the vitreous body in the eye?
To contribute to the magnifying power of the eye
Learn about the three coats of the eyeball, including the fibrous coat, vascular pigmented coat, and nervous coat. Discover the functions and characteristics of each layer.
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