Puberty(1).pptx - Puberty PUBERTY It is a physiological phase during which there is final maturation of the reproductive system Lasts 2 to 5 years

Puberty(1).pptx - Puberty PUBERTY It is a physiological...

This preview shows page 1 - 13 out of 40 pages.

Image of page 1
PUBERTY It is a physiological phase during which there is final maturation of the repro- ductive system. . Lasts 2 to 5 years .
Image of page 2
Puberty Physiological transition from childhood to reproductive ma- turity Associated with: Growth spurt Appearance of both primary and secondary sexual characteristics in children Occurs between 8 and 14yrs in girls Occurs between 9 and 14yrs in boys
Image of page 3
Influencing Factors Genetics: 50-80% of variation in pubertal timing ( as race ) Environmental factors e.g. nutritional status ( obesse are more likely to be earlier ) Excessive exercise Psychological factors .
Image of page 4
Manifestations of puberty in the female include: 1. Menarche, 2. Appearance of secondary sex characters, 3. Physical development and 4. Psychological changes .
Image of page 5
Secondary sex characters include: Development of the breast, appearance of pubic and axillary hair.
Image of page 6
The first sign of pubertal develop- ment is usually breast growth (the- larche), followed by appearance of pubic hair (pubarche), then ( axil- lary hair) , then ( menarche) . The mean interval between breast budding and menarche is 2.5 years with a standard deviation of about one year .
Image of page 7
Adrenarche Means increased activity of the suprarenal cortex at puberty with increased production of adrenal androgens which lead to appearance of pubic and axillary hair.
Image of page 8
Tanner stages Developed as a way to classify the time, course, and progress of changes that occur during pu- berty. Based upon attainment of secondary sex charac- teristics, which include genital development in males, breast development in females, and pubic hair development in both genders.
Image of page 9
Pubertal Stages (Tanner) Female P1 Prepubertal P2 Early development of subareolar breast bud +/- small amounts of pubic and axillary hair P3 Increase in size of palpable breast tissue and areolae, increased dark curled pubic/axillary hair P4 Breast tissue and areolae protrude above breast level. Adult pubic hair but no spread to medial thighs. P5 Mature adult breast. Pubic hair extends to upper thigh
Image of page 10
Female: Breast Tanner Stages Breast 1 Preadolescent. Elevation of the papilla only 2 -A small mount is formed by the eleva- tion of the breast and papilla -Areolar diameter enlarges 3 Further enlargement of breast and are- ola. 4 Projection of the areola and papilla to form a secondary mound above the level of the breast 5 -Mature breast - Areola recessed to the general contour of the breast.
Image of page 11
Male: Genitalia Tanner Stages Genitalia 1 -The penis , testes and scrotum are of childhood size 2 -Enlargement of scrotum and testes - Scrotal skin reddens 3 -Further growth of the testes and scrotum.
Image of page 12
Image of page 13

You've reached the end of your free preview.

Want to read all 40 pages?

  • Winter '16
  • Bill Oyieke

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes