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The program has come under scrutiny by parents because of its graphic cartoon depictions of sexual intercourse and foreplay in Unit 2. [citation needed] Although the Alternative version removed some of the more explicit content, concerns have still been expressed, and it has been noted that the worksheets remain unchanged, and the original DVDs were not recalled.
Although there is a wide range of normal ages, females typically begin the process of puberty around age 10½; males at ages 11½—12. Puberty generally ends between 15—17 for females and 16–17 for males. [1] [2] [3] Females attain reproductive maturity about four years after the first physical changes of puberty appear. [13]
The increased secretion of testosterone from the testes during puberty causes the male secondary sexual characteristics to be manifested. [23] Testosterone directly increases size and mass of muscles , vocal cords , and bones , deepening of the voice , and changing the shape of the face and skeleton . [ 1 ]
Date/Time Thumbnail Dimensions User Comment; current: 18:41, 12 March 2020: 1,122 × 1,022 (401 KB): Aréat: Uploaded a work by Stolz, Herbert Rowell from Somatic development of adolescent boys; a study of the growth of boys during the second decade of life, by Herbert Rowell Stolz and Lois Meek Stolz.
Among researchers who study puberty, the Tanner scale is commonly considered the "gold standard" for assessing pubertal status when it is conducted by a trained medical examiner. [5] In HIV treatment, the Tanner scale is used to determine which regimen to follow for pediatric or adolescent patients on antiretroviral therapy (adult, adolescent ...
[20] [21] Puberty which starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics , the "filling in" of the child's ...
The transformation of güevedoces into an adult male at puberty, which is reported to be celebrated in Dominican culture, is the result of a genotypic male (with XY chromosomes) born with a deficiency in the enzyme 5α-reductase. 5α-Reductase is responsible for the reduction of testosterone to dihydrotestosterone.
Puberty is considered delayed when the child has not begun puberty when two standard deviations or about 95% of children from similar backgrounds have. [7] [8] [9]In North American girls, puberty is considered delayed when breast development has not begun by age 13, when they have not started menstruating by age 15, [2] and when there is no increased growth rate. [8]