Puberty and secondary sex characteristics

For more drastic and often bizarre differences between the sexes, see Bizarre Sexual Dimorphism. One ad shows it courting a pink hence female bowling ball, and the other, a rake with a leaf daintily stuck to its tines where this trope would normally place a flower.

Puberty and secondary sex characteristics

Breasts enlarge, Pubic hair darkens, becomes curlier, Vaginal discharge, Acne, Underarm hair IV Nipple mound stacked on areola mound Adult type, but not beyond pubic area Less than 7. Premature Onset When Dr. Puberty and secondary sex characteristics began stage 1 pretty much a year or so before the boys — on average.

Then there came the more industrialized, mechanized, computerized, nutrition-ized years leading to now when we are noticing that Tanner stage 1 is beginning almost a year earlier across the board!

Immunizations resulting in comparatively disease free childhoods? Microwave towers, increased electro-magnetic radiation or a thousand other things unique to our 21st century culture?

Puberty and secondary sex characteristics

The substantial growth spurt right out of the gate with breast development does tend to give parents of girls a bit of a heads-up however. Why do we bother with all this timing stuff?

Well, because there are some pretty severe medical problems that cause puberty to be out of whack, many of which can be treated if caught early, but which are very costly to work up.

Brain injuries or infections can also stimulate the early onset of puberty. The pubertal process is so hormonally complicated that there are often more than 10 which need to be analyzed by blood tests individually.

Tumors require x-rays, CT scans or MRIs not to mention thorough physical examinations and meticulous clinical histories in order to piece everything together. Treatment, if possible, may require surgery or in some cases one of the new medicines developed to counteract an excess hormone. Yes, although most of us hedge our bets here too, especially in active girls.

Even those who have already begun menstruation and then become athletic may stop or become irregular. Progression from girl to woman Delayed puberty is due to insufficient hormone. If the pituitary output is inadequate, so will be the output from the gonads and adrenals.

Depending upon what we find is the cause, these days we have synthesized hormones that we can inject which will both start and maintain puberty long enough to cause the change from a child into an adult.

Abnormal Hormone Production Additionally, for females, there are abnormalities in hormone production which can produce male characteristics such as hair patterns, voice changes, muscularization and clitoral enlargement.

The diagnosis is to follow the hormones and their productions as outlined above. Each embryo starts out life as female. Male hormones transform it into a male if they are present.

The actual mechanics of generating and balancing and sequencing all the hormones and other components required to orchestrate puberty is at least as substantial as launching and building the space station. Do you really want to leave launching the space shuttle to chance? The follow-up discussions can then be short but recurring and informative but casual.

Hygiene Puberty talks can begin with hygiene Talks about hygiene can begin even before puberty sets in and pave the way for open discussions about bodily functions. Most of the changes that will occur during puberty for both boys and girls require greater care and attention than in their whole life up to this point.

This means taking more time to clean their body, especially the genitals. While children may get away with an every other day bath, adolescents should bathe every day; treating acne, using mouthwash and applying deodorant.In Europe and America, and probably in other cultures, the average age at which a girl first menstruates has gradually declined in recent historical times, the possible reasons being .

Puberty is the stage in life when a child's body develops into an adult's body. The changes take place gradually, usually between the ages of 10 and Several hormones control this cycle – for. Puberty is the period during which growing boys or girls undergo the process of sexual maturation.

Puberty involves a series of physical stages or steps that lead to the achievement of fertility and the development of the so-called secondary sex characteristics, the physical features associated with adult males and females (such as the growth of pubic hair).

Delayed puberty is defined by the absence or incomplete development of secondary sexual characteristics by an age at least 2 standard deviations below the mean of gender and culture-matched children.

Men with histories of constitutionally- delayed puberty (CDP) meet this definition but do not have a permanent defect in gonadal steroid function. The following are the most common symptoms of precocious puberty. However, each child may experience symptoms differently.

As in normal puberty, symptoms of precocious puberty include the onset of secondary sexual characteristics, including. Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy.

In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle.

BBC Bitesize - GCSE Biology (Single Science) - Reproduction in humans - Revision 3