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Sex differences at puberty

Published online by Cambridge University Press:  27 September 2011

W. A. Marshall
W. A. Marshall
Affiliation:
Department of Growth and Development, Institute of Child Health, University of London
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Extract

The physical changes which take place at puberty in both sexes may be classified under the following headings:

(1) Morphological. The rate of growth increases but this acceleration is greater in some dimensions than others so that the overall shape of the body changes, i.e. the rate of change in both size and shape alters.

(2) Body composition. There are changes in the relative amounts of bone, muscle and fat.

(3) Physiological. There are changes, particularly in the circulatory and respiratory systems, altering the ability to carry out prolonged muscular work.

(4) Sex specific. The secondary sex characters develop and reproductive capacity is attained.

(5) Endocrine. The above changes result from alterations in the quantities of various hormones released into the blood stream by the endocrine glands, especially the pituitary, the gonads (ovaries in female and testes in male), and the adrenal cortex. The endocrine changes must precede the morphological or other effects which they produce, but will be more readily understood if we examine their effects first.

Type
Genetic and environmental aspects
Information
Journal of Biosocial Science , Volume 2 , supplement S2: Biosocial Aspects of Sex , 1970 , pp. 31 - 41
Copyright
Copyright © Cambridge University Press 1970

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References

Brozek, J. (1965) Changements avec l'age et variations sexuelles du corps chez l'enfant et chez l'adolescent. Biotypologie, 26, 98.Google Scholar
Brozek, J. (1966) Age changes and sex differences during childhood and adolescence. J. Ind. Soc., Cal. 1, 27.Google Scholar
Donovan, B.T. & Van Der Werff Ten Bosch, J.J. (1965) Physiology of Puberty. Edward Arnold, London.Google Scholar
Harris, G.W. & Jacobsohn, D. (1952) Functional grafts of the anterior pituitary glands. Proc. R. Soc. B, 139, 263.Google Scholar
Harris, G.W. & Levine, S. (1965) Sexual differentiation of the brain and its experimental control. J. Physiol, Lond. 181, 379.Google Scholar
Heald, F.P., Hunt, E.E., Schwarz, R., Cook, C.D., Elliott, O. & Vajdan, B. (1963) Measures of body fat and hydration in adolescent boys. Pediatrics, 31, 226.CrossRefGoogle ScholarPubMed
Marshall, W.A. & Tanner, J.M. (1969) Variations in the pattern of pubertal changes in girls. Archs Dis. Childh. 44, 291.Google Scholar
Marshall, W.A. & Tanner, J.M. (1970) Variations in the pattern of pubertal changes in boys. Archs Dis. Childh. 45, 13.Google Scholar
Morris, C.B. (1948) The measurement of the strength of muscle relative to the cross section. Res. Q. Am. Ass. Hlth phys. Educ. 19, 295.Google Scholar
Parizkova, J. (1961) Age trends in fat in normal and obese subjects. J. appl. Physiol. 16, 173.Google Scholar
Tanner, J.M. (1962) Growth at Adolescence, 2nd edn. Blackwell Scientific Publications, Oxford.Google Scholar
Tanner, J.M. (1965) Radiographic studies of the body composition. In: Body Composition. Symposia of the Society for the Study of Human Biology, Vol. 7, p. 221. Edited by Brozek, J.. Pergamon Press, Oxford.Google Scholar
Tanner, J.M. (1969) Growth and endocrinology of the adolescent. In: Endocrine and Genetic Diseases of Childhood. Edited by Gardner, L.. Saunders, Philadelphia.Google Scholar
van Wieringen, J.C., Wafelbakker, F., Verbrugge, H.P. & de Haas, J.H. (1968) Groeidiagrammen Nederland 1965. Wolters-Noordhoff n.v. Gröningen.Google Scholar