HUN 3403 Lecture Notes - Lecture 19: Folic Acid, Menarche, Impulsivity
31 Mar 2017
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Adolescence: appearance of secondary sex characteristics cessation of somatic growth, about 11-21 yo, puberty. Secondary sex characteristics capable of reproduction: more in control of their diet than children. Healthy people 2020: increase proportion of hs seniors who. Have never had alcoholic beverages (27. 7% currently) Don"t use tobacco (80%: decrease consumption of calories from. Developmental changes in adolescence: linear growth velocity compares to that of a 2 yo. Nutrient requirements are high because of this. Growth spurt- 18-24 month period when growth rate is the fastest. Incorporate twice the amt of: ca, fe, zn, mg. Males: starts at age 10. 5, peak height velocity at age 14, adult stature by age 19-21. Females: starts at age 9-10, peak height velocity at age 12, adult stature by age 16-19, hormone controls. Closure of epiphyseal plates (growth plates on end of long bones) Estrogen: secreted by ovaries, increased growth of uterus, fallopian tubes, vagina, breasts.
