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Here is a simplified checklist of what occurs during the different stages of puberty for boys and girls.
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In Males:
Stage I
- Prepubertal appearance
- Testicular volume less than 1.5 ml
- Penis 3 cm or smaller
Stage II
- Small amount of light downy hair at the base of the penis and scrotum
- Scrotum skin thins
- Testicles continue to enlarge (up to 6 ml)
- Scrotal enlargement begins
- Penis size remains unchanged
Stage III
- Pubic hair begins to darken and become more coarse
- Pubic hair begins to extend from just above penis to more of a triangle shape
- Testicular size around 6-12 ml
- Scrotum continues to enlarge
- Penis begins to enlarge, first in width, then in length (up to about 6 cm)
- Due to increased hormone secretion, 70% develop breasts temporarily
Stage IV
- Pubic hair has quality of adult, but has not extended to the legs
- Testicular volume about 12-20 ml
- Scrotum continues to enlargen
- Scrotum begins to darken in color
- Penis continues to enlarge, first in length (up to about 10 cm), then in width
- Due to increased hormone secretion, 70% develop breasts temporarily
Stage V
- Pubic hair extends to medial thigh
- Testicular volume 18-20 ml or larger
- Adult sized and colored scrotum
- Penis length around 15 cm
- Gynecomastia, if present, regresses
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In Females
Stage I
- No pubic hair at all
- Prepubertal appearance
- No breast gland tissue present
- Areola is not elevated above skin of the chest
Stage II
- Small amount of long downy hair beginning to grow on labia majora
- Breast buds form
- Small area of glandular tissue in breast is present
- Areola begins to get larger
- Menarche often occurs in late stage I or in stage II
Stage III
- Pubic hair begins to darken and become more curly and coarse
- Pubic hair begins to spread to pons pubis and then laterally
- Breast begins to elevate above surface of chest
- Breast development beyond borders of aerola
Stage IV
- Adult-like pubic hair on mons pubis, but does not extend to upper thigh
- Increased breast size and elevation
- Areola develops a second elevated region that extends beyond the plane of the rest of the breast.
Stage V
- Adult pubic hair distribution and texture
- Breast is adult in size
- Areola's secondary elevated region begins to regress to the same plane as the rest of the breast
- Papilla remains projected
What else can I help you with?
What are the relationship of an adolescent?
Be someone you like neevr change it. Unfortunatley, most adolescent relationsips, such as dating in your teen years 15-18, are not taught in class. These experiences are those you learn in practical life. My best advice to you would be to stick with a partner who is predicable, and responsive to your liking.
A drastic change in the metabolic rate of a human would most likely result from the?
Malfunction of the endocrine glands
What ocean environments experiences the most change?
Intertidal zone ^ textbook answer!
Country with most adolescent pregnancy?
Africa
Which category of males experiences the most change from 1970 to 2000?
never married
Is the media the most important influence on adolescent behavior?
No, the media is not the most important influence on adolescent behaviour.In fact friends are the most important influence on adolescent behaviour.You can either chose to follow them, or not to.You can choose to do the good deed, or the bad.You can even choose what sort of friends you want to influence you.
What is an early bloomer?
an adolescent who develops before most of his or her peers
In which area of the US does the most drastic temperature change occur during the start of spring?
The most drastic temperature changes during the start of spring in the US typically occur in the Midwest region, particularly in states like Minnesota, Wisconsin, and Michigan. These areas can experience wide temperature fluctuations as winter transitions to spring.
What color is a fish before dying?
Most fish get very light colored when stressed, but some become very dark. Basically, a drastic color change indicates a problem.
The most drastic measure of The Intolerable Acts was the?
The Boston Port Act
What part of the intolerable acts was the most drastic?
boston port act.
Is a change from the cash basis to the accrual basis a change in accounting principle?
Yes it is a change in accounting principle. And a rather drastic change. Accrual Basis of accounting is the most fundamental accounting assumption which is regarded throughout the world. Thus if a person either departs or adopts the accrual basis its a change in accounting principle.
