Module 1 & 2- Introduction to Physiology of Aging Flashcards
physiology
study of the bodily function of humans
anatomy
study go bodily structure of humans
gerontology
study of social, cultural, psychological, cognitive, and biological aspects of
adolescence
rate of development
senescence
to grow old
cellular senescence
cells that stopped developing
leukocytes
protect against pathogens
neuron
transmits signals throughout the body
histology
study of tissue
hypertrophy
a GROWTH in the size of tissue by an increase in the SIZE of cells
hyperplasia
a GROWTH in the size of tissue by an increase in the NUMBER of cells
atrophy
a SHRINKAGE in the size of tissue by a decrease in the NUMBER or SIZE of cells
metaplasia (not cancer)
a CHANGE in the cell composition of tissue
neoplasia (cancer)
the PROLIFERATION of abnormal cells within tissue
unifying tenet
body’s failure to repair damage
cells with a diminished functional capacity
alternations accumulate as we age
error theory
unstable molecules that are byproducts
altered DNA
(smoking)
free radical theory
immune function become scarer with age become swelled
immune theory
telomeres shorten and chromosomes fray
programmed theory of aging
positive and negative feedback loops
neuroendocrine theory
