GERON255 Study Guide - Midterm Guide: Homeostasis, Base Pair, Ribosomal Rna
28 Oct 2013
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Document Summary
Gerontology: study of the aging process, from maturity to death. Consists of biological aging, psychological aging, and social aging (also environmental, economic, cultural and spiritual). Gerontologist: uses multidisciplinary concepts to study all aspects of aging process. Geriatrician: concerned with health, care, diseases, and treatment of older adults. Biogerontology: field that studies the biological aspects of aging (physical changes in tissues, organs and systems that lead to changes in appearance and functional capacity). Chronological aging: passage of time from birth for that individual; good for population studies: poor indicator of biological age because it is based on time only, arbitrary, relative and subjective, young-old: 60-74, old-old: 75-84, oldest-old: 85+ Influenced greatly by extrinsic factors, lesser by intrinsic factors (more environment than genetics): extrinsic factors (control over): lifestyles/nutrition, environment, medical advancements. Intrinsic factors (no control over): genetics: defined by 4 different criteria. Normal biological aging: structural elements within the body deteriorate.
