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Introduction to Human Aging
General Effects of Aging
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accumulation acids activity affect Age-Related Changes Age-Related Dysfunctions aging changes alveoli arteries atherosclerosis atrophy autonomic nervous system become bladder blood cells blood flow blood vessels body brain calcium called cancer capillaries carbohydrates cardiac muscle cardiac output cartilage cause cavity cellular changes that occur collagen collagen fibers connective tissue contractions cytoplasm decline decrease degeneration develop digestive diminished elastic elderly persons enzymes fluid formation gland gradually heart hormones hypothalamus immune system increase intestine joint kidneys layer lens levels lipofuscin located loss lungs lymphocytes lymphoid metabolic mitochondria molecules muscle cells nerve impulses nervous system neurons norepinephrine normal occur with age older persons organs oxygen Parkinson's disease pigment pituitary plaques plasma produce proteins reduced regions respiratory responses result retina Review of Structure secretion senile sensory skeletal muscle skin smooth muscle spinal cord Structure and Function substances surface symptoms taste tend tion tubules undergo urine ventricle vitamins volume walls