48-54 Flashcards

1
Q

eye focuses images correctly on
the retina

A

Emmetropia

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2
Q

Distant objects appear blurry
▪ Light from those objects fails to reach the retina and
are focused in front of it
▪ Results from an eyeball that is too long

A

Myopia (nearsightedness)

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3
Q

Near objects are blurry, whereas distant objects are
clear
▪ Distant objects are focused behind the retina
▪ Results from an eyeball that is too short or from a “lazy
lens”

A

Hyperopia (farsightedness)

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4
Q

Images are blurry
▪ Results from light focusing as lines, not points, on the
retina because of unequal curvatures of the cornea or
lens

A

Astigmatism

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5
Q

Convergence: reflexive movement of the eyes medially
when we focus on a close object
▪ Photopupillary reflex: bright light causes pupils to
constrict

A

Eye reflexes

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6
Q

Ear houses two senses

A

1.Hearing
2. Equilibrium (balance)

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7
Q

The ear is divided into three areas

A
  1. External (outer) ear
  2. Middle ear
  3. Internal (inner) ear
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