Flashcards in Physiological changes and adaptation in the older adult Deck (16):
What is the gene regulation theory of aging?
senescence (aging) results from changes in gene expression
- long life has a genetic component
What endocrine axis is the master regulator for physiological adjustments necessary for preservation and maintenance of internal homeostasis?
- theory that aging/stressors can cause this to weaken or decrease adaptational capacity
T/F: As we age, we lose type I and type II fibers.
false, just type II
- actually gain more type I
What muscular changes are associated with aging?
- more rapid fatigue
- loss of type II fibers
- decreased muscle strength and power
- loss of muscle mass
What happens to cartilage as we age?
becomes stiffer, erodes
What happens to the discs in our spine as we age?
lose water content and become flatter
T/F: Motor units increase as we age.
true, d/t loss of motorneurons
T/F: Reaction time and movement time increase as we age.
T/F: Stressing repetitive movements would be a good motor learning strategy for older adults.
true, to reduce confusion/memory issues and cement the learning in their head
What does the visual field of a person with glaucoma look like?
tunnel vision: lose peripherals until they progress to total blindness
What does vision with cataracts look like?
cloudyness of lens resulting in central loss of vision, then peripheral
- issues with glare, general darkening of vision, loss of acuity/distortion
What does vision with macular degeneration look like?
central loss, may progress to total blindness
T/F: Diabetic retinopathy causes central vision impairments.
- full blindness is rare
What medications can cause fuzzy vision?
antihistamines, tranquilizers, antidepressants, steroids
What's the difference between conductive and sensorineural hearing loss?
conductive = mechanical damage to external auditory canal, eardrum, or middle lear
- results in all-frequency hearing loss, tinnitus
sensorineural = hearing loss from noise damage, trauma, disease, drugs