Anatomy Questions
Explore questions in the Anatomy category that you can ask Spark.E!
People who have________can see close objects clearly, but distant objects appear blurry.
The main factor affecting depth of focus is the ______.position of the fovea centralissize of the pupilshape of cornea
Concave lenses cause light rays coming to the eye to______.divergeconverge
What is the near point of vision?The region of the electromagnetic spectrum which can be detected by the rods and conesThe closest point at which an object can be held and seen without appearing blurredThe region of the macula in which the rods and cones are most concentratedThe point at which a viewed image is not inverted on the retina
List 3 mechanisms which allow the eye to focus on objects located closer than 20 feet.Increasing fluid circulation in the anterior chamberConstriction of the pupilFlattening of the corneaConvergence of the eyesAccommodation by the lens
Accommodation occurs when the ______.eyeball rotates mediallylens changes shapepupils dilate
In normal near vision light is refracted______ than in distant vision, thus the lens is______.more; roundedmore; flattenedless; flattenedless; rounded
Light rays bend or ______ as they pass through media of different densities.convergeassimilaterefract
The lens becomes more spherical when the ______ contract.dilator pupillaeextrinsic eye musclesciliary musclessphincter pupillae
A visual image is inverted when it reaches the retina, so it is upside down. However, the ______ corrects the visual information.spinal cordbrainthalamus
The eye's ability to focus an image on the retina so that a clear image is perceived is ______.depth of focusnear point of visionvisual acuity
What is the near point of vision for a child?20 inches60 inches2 to 3 inches
Define presbyopia. A condition that results from ______.an increase in the near point of visionthe visual image being focused behind the retinathe visual image being focused in front of the retinaa flattening of the lens
Accommodation occurs when the ______.eyeball rotates mediallypupils dilatelens changes shape
The term that describes the greatest distance through which an object can be moved and still remain in focus is _______ of ______.
The jelly-like substance found in the vitreous chamber of the eye is called______ _______.
The condition that develops with age that increases the near point of vision is called ______.
During near vision, the lens is______ and during distant vision the lens is ______.rounded, flattenedflattened, rounded
Nerves and blood vessels enter and exit the retina at the______.optic discmacula luteafovea centralis
The transparent, biconvex structure in the eye is called the ______.scleracornearetinalenschoroid