. The biology of senescence. Old age; Aging; Longevity. The Biology of Senescence a minimum output of thyroid hormone is required to maintain growth and development. At puberty, in response to the pituitary gonadotropins, the gonads produce steroid hormones which directly stimulate the growth of bone and of soft Fig. 42.âThe postnatal growth in weight of male children (kg/years) (from the data of Quetelet). 300 ~ "1 § Puberty â rj\ ' ' L_ n2\ _ 1 1 1 1 l 1 l 1 i i i i i i i i i i i 2 3 t 5 6 ? 6 9 10 11 12 f3 14 15 IS 17 18 13 20 21 22 Age in Years from Birth Fig. 43.âAnnual gr
. The biology of senescence. Old age; Aging; Longevity. The Biology of Senescence a minimum output of thyroid hormone is required to maintain growth and development. At puberty, in response to the pituitary gonadotropins, the gonads produce steroid hormones which directly stimulate the growth of bone and of soft Fig. 42.âThe postnatal growth in weight of male children (kg/years) (from the data of Quetelet). 300 ~ "1 § Puberty â rj\ ' ' L_ n2\ _ 1 1 1 1 l 1 l 1 i i i i i i i i i i i 2 3 t 5 6 ? 6 9 10 11 12 f3 14 15 IS 17 18 13 20 21 22 Age in Years from Birth Fig. 43.âAnnual growth increment in boys, from the data of Quetelet krk4 = growth constants at each period (from Schmalhausen, 1928). The process of bone growth in man is, however, self-limited, since the same hormones produce skeletal maturation and fusion of the epiphyses. There is reason to suspect that they also inhibit the production of pituitary growth hormoneâ 184. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comfort, Alex, 1920-. New York, Rinehart
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Keywords: ., bookcentury1900, booksub, booksubjectlongevity, booksubjectoldage
