By Alvin F. Goldfarb (auth.), Alfred M. Bongiovanni M.D. (eds.)
ABOUT the subject material formative years is a time of vital swap. The adolescent period spans the period among formative years and maturity. it's a time of actual, social, or even emotional upheaval. in this particularly short time period not just does actual progress speed up yet, of extra importance within the biology of any species, the person attains reproductive adulthood. inside of this time-frame, the man or woman acquires the capability to procreate and perpetuate our species. From a reproductive perspective, all through adeolescence the person is being ready for probably what should be thought of an important functionality an organism has in the course of his/her short sojourn in the world, specifically to endow successor(s) with a minute quan tity of DNA to let continuation of its type of lifestyles. The interlude be tween adolescence and maturity isn't really regularly socially or emotionally sim ple. The anatomic and physiologic alterations that come to go in the course of early life are usually not inevitably paralleled by means of a ability to imagine the societal obligations linked to reproductive adulthood. even though the physiologic alterations often continue in a predetermined type, edition to a altering function is a much more making an attempt procedure. acquainted with dwelling in a kid's global, the topic of adolescent swap calls for enormous time and knowing to facilitate exis tence within the grownup global. The early phases of sexual knowledge, for ex abundant, are usually tremendous complicated and, as evidenced by way of the in ordinately excessive frequency of minor being pregnant and sexually transmitted illnesses, will be terribly dangerous.
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Additional info for Adolescent Gynecology: A Guide for Clinicians
Vagina, cervix, breast) in the female fetus and newborn have already been stimulated indicates the sensitivity of receptive cells in these tissues to estrogens, which may originate in the fetus, mother, and/or placenta. 1. Endocrinology of the Newborn Female During the first few months of life in healthy infants, the pituitarygonadal system demonstrates evidence of transient activity. 25 These gonadotropin levels in turn provoke the stimulation of testicular production of androgen in males and an increase in ovarian steroid elaboration in females.
A lag in the growth rate of girls with Turner syndrome is often apparent shortly after birth. It is very definitely obvious by the time the patient is ready to enter puberty. It is of interest that even though these children are definitely shorter than would be predicted by parental height, there does appear to be a distinct correlation with parental height suggesting that other genetic factors are still in play. 35 The typical appearance of these patients together with absent secondary sexual development is highly suggestive ofthe diagnosis of Turner syndrome.
The work of Illig et al. 56 suggests a role for estradiol that is similar to the observations of others. Estradiol influences breast development, but it also acts directly on the pituitary. This action may serve to sensitize the gland to stimulation by releasing hormone. Then with the onset of regular ovulation, it is possible that progesterone diminshes the sensitivity. 56 Once full maturation of the hypothalamicpituitary-ovarian complex has been achieved, in the normal female, cycles become ovulatory.
Adolescent Gynecology: A Guide for Clinicians by Alvin F. Goldfarb (auth.), Alfred M. Bongiovanni M.D. (eds.)