Chapter 3 Flashcards

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1
Q

What are the two categories of theories for aging?

A

Programmed Theories = aging is genetically programmed (if so twins would drop dead the same day)

Error theories = aging is due to random damage from what we’re exposed to in our environment

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2
Q

What is the “Good genes gone bad” theory

A

the idea that evolution has selected living animals in species that are good for reproduction but are less important after that period has passed

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3
Q

What is the term for the loss of the ability for cells to reproduce

A

Replicative senescence

human cells can reproduce 50 times

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4
Q

What theory proposes that a faulty immune system attacks the body’s cells (our immune system is programmed to stop working eventually)

A

The Autoimmune theory

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5
Q

What theory proposes that Aging is caused by environmental damage to systems in our bodies, and that this damage accumulates over time

A

Error/Random Aging theories

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6
Q

What theory proposes that our bodies wear out due to use over time

A

Wear and Tear theory

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7
Q

What is Intrinsic aging?

A

gradual and irreversible changes in our structure and function that occurs due to the passage of time (primary aging)

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8
Q

What is Extrinsic aging?

A

aging due to external factors like diet, exercise, exposure to sunlight, and smoking

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9
Q

What is it called when a person looses hair more than the average person and how does it differ between the genders?

A

Androgenetic Alopecia
men = hairline recedes, leads to baldness, happens around age 50

women = hair becomes thinner, doesn’t usually lead to full baldness

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10
Q

Caucasians tend to get grey hair __ to __ years earlier than those of African or Asian descent.

A

5-10

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11
Q

What causes hair to grow everywhere but the head as we age?

A

We gain hair in extra places because of hormonal changes

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12
Q

What term refers to age related voice changes

A

Presbyphonia

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13
Q

What age does Presbyphonia usually occur and how does it differ with men and women

A

Occurs around age 60

men = higher pitch
women = lower pitch

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14
Q

What are some characteristics of Presbyphonia and how can we avoid it?

A
  • reduction in volume and projection
  • tremor/shakiness in the voice
  • reduced vocal endurance

you can prevent it with practice, reading out loud for 5-10 minutes 2-3 times a day

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15
Q

What are some characteristics of Age related vision changes

A
  • Older people need more light and have a hard time adjusting to dark and light adaptation
  • Increased sensitivity to glare
  • decreased visual acuity (20-60)
  • poor color discrimination for short wavelengths (blues, purples, and greens)
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16
Q

What is it called when focusing near-far and far-near takes longer for older people

A

Presbyopia (not a disease, just primary aging)

17
Q

Presbyopia tends to occur more with _____ people, and can start as early as ___ but occurs late ___s

A

short people, 35, 40s

18
Q

Why does Presbyopia occur?

A

Because of the stiffening and thickening of the lens and atrophy of ciliary muscles

19
Q

What type of abnormal vision disorder causes blurry vision and scattering of light rays

A

Cateracts
- can interfere with color vision and cause limitations in daily activities

20
Q

What are possible causes of Cateracts?

A

Heredity
injury
disease
sunlight
smoking

21
Q

What is a highly effective treatment for Cateracts

A

Surgery

22
Q

What eye disorder occurs because of buildup of pressure in the eye (to optic nerve), causing a lack of peripheral vision

A

Glaucoma

23
Q

What is a possible treatment for Glaucoma

A

Eyedrops

24
Q

What term describes the inability to hear high-pitched tones, what is it caused by?

A

Presbycusis

changes in the cochlea

25
Q

By age 70, ____% have it

A

50%

26
Q

What term describes a loss of smell, that is very serious and often combined with other issues (memory decline and Alzheimers)

A

Anosmia

27
Q

What age does Anosmia usually occur?

A

80

28
Q

Research indicates that tactile thresholds increase significantly with age and thresholds for pain and temperature, what does thus mean?

A

That it takes an older person longer to recognize that hot water is hot or can’t tell the difference between sand and normal paper, takes more time to recognize pain