Chapter 17 - Physical and cognitive in late adulthood Flashcards
(34 cards)
What is gerontology:
Scientific study of aging, includes great variability.
What are the subgroups of late adulthood?
Young old = 60-75
Old-Old = 75-85
Oldest = 85+
The gradual deterioration of body systems that happens after reaching maturity is called:
Senscence.
The Hayflick Limit:
genetically programmed time where cells no longer have the capacity to replicate themselves accurately.
What are telomeres?
Time keeping string of DNA thta decrease in size everytime a cell divides. Stress can increase shortening. As we age telomerase (restores telomeres) cannot be produced by our cells.
Inability to repair breaks in DNA strands results in a loss of cellular functioning that leads to aging is called:
Cellular Damage
What are the 2 ways cells are damaged:
Cross linking: undesireable chemical bonds between protiens or fats.
Free radicals: molecules or atoms that posses an unpaired electron.
What gradually lose the ability to effectively sustain the bodies cells?
Stem Cells
What are the 5 theories of biological aging?
- Stem cells
- telomeres
- The hayflick limit
- senscence
- cellular damage
Across all 3 subgroups adults relate their health as _____________ poor/ fair health reports are more common in the _____________ subgroup.
Good
Younger
What is functional status?
Measure of an individuals ability to perform certian roles, self help tasks and chores.
What are BADLS and IADLS?
Basic Activities of Daily living (self help)
Instrumental Activities of Daily Living (chores)
What are the most common health problems in this age group?
Arthritis and hypertension
Seniors whose physical/ mental impairments effect their ability to care for themselves are called:
Frail elderly.
What are the 5 main factors that decrease life expectancy?
- Smoking
- Diet
- Exercise
- alcohol
5.stress
Having all 5 is associated with a 20 year life expectancy difference.
What are the 4 main brain changes:
- Reducation of weight
- loss of grey matter
- slower synaptic speed
- decline of density of dendrites
What are the 4 main vision deficits that may be experienced:
- Presbyopia (farsightedness)
- Blind spot
- Pupil not narrowing/ widening as quickly(causes problems with light)
- cataracts, glucoma, or macular degeneration
Hearing loss(presbycusis):
lose ability to hear high frequency sounds, distinguish between words, and ringing(tinnitus).
What causes hearing loss?
Structural changes in the ear and functional changes in the brain.
What are the changes that occur with taste?
less saliva and blander flavours, can lead to a loss in appetite/ nutrition problems.
What are the changes that occur with touch?
Loss of sensitivity to cold/ heat which can create safety hazards.
Decreased ability to retrieve knowledge and increased car accidents are caused by what?
General slowing due ti slowing of the brain, touch, and vision.
What are the changes seen in sleep?
- Increased interupted sleep and daytime naps.
- decrease in Rem
- More likely to wake up/ go to bed early
Reducation in stamina, dexterity, and balnces causes:
More fractures/falls, increased problems with fine motor skills, and decreased ability to learn new skills.