1. Adolescence Endocrine system Reproductive System

2. The endocrine system Functions
Regulates long-term changes such as growth and development
Produce chemicals that control many of the body’s daily activities
Chemicals are called hormones
Hormones can turn on, turn off, speed up, slow down the activities of different organs and tissues

3. The endocrine system
Endocrine glands– produce and release chemical products directly into the bloodstream
Pituitary gland– located in the brain and regulates growth from infancy and adulthood
Ovaries– release hormones that regulate egg development in females
Testes– release hormone (testosterone) that regulates the production of sperm

4. Growth and development
Infancy- First two years of life
Cries for help
Learns to sit, crawl, stand and walk
Plays alongside others
Learns many words
Learn to feed themselves
Understand simple directions

5. Growth and development childhood– ages 3-12
Physical Changes
Become more coordinated
Has many interests and hobbies
Permanent teeth
Appetite increases
Mental Changes
Curiosity grows
Language and conversation skills develop
Learn to read and solve problems
Learn higher level thinking skills
Has many interests and hobbies
Develop values
Take on more responsibilities
Social Changes
Plays with others
Becomes less self- centered
Learn to make friends and care about others
Need to fit in becomes important
Learn to work in groups

6. Growth and development
Adolescence– stage of development during which children become adults physically and mentally
Typically between the ages of 9-15
Puberty– period of sexual development in which the body becomes able to reproduce

7. Growth and development
Adulthood
Unsure when adolescence ends and adulthood begins
Aging– after about the age of 30,
skin wrinkles, muscle strength begins to decrease
women stop menstruating/ovulating

8. Adolescence Oily Skin/Acne Body Odor/More Perspiration Growth Spurt
Changes for Both
Oily Skin/Acne
Body Odor/More Perspiration
Growth Spurt
Hair growth– underarms, legs, pubic area
Start to care more about what others think.
Interest in opposite gender
Think like an adult
Spend more time with friends
Consider Consequences of your actions

9. Adolescence Breast development Grow taller and shoulders broaden
Changes in girls
Breast development
Hair growth under arms, legs and pubic area
Hips get wider
Menstruation Begins
Ovulation Begins
Puberty usually starts earlier
Changes in boys
Grow taller and shoulders broaden
Gain more weight/muscles get bigger
Hair growth under arms, legs and in pubic area
Voice deepens
Facial Hair
Puberty usually starts later
Sperm Production Begins

10. Changes during Puberty
Male
Female
Both
Grow taller and shoulders broaden
Gain more weight/muscles get bigger
Chest Hair
Voice deepens
Facial Hair
Puberty usually starts later
Sperm Production Begins
Produce Testosterone
Oily Skin/Acne
Body Odor/More Perspiration
Mood swings
Growth Spurt
Hair growth- under arms, legs, pubic
Start to care more about what others think.
Interest in opposite gender
Think like an adult
Spend more time with friends
Consider Consequences of your actions
Breast development
Hips get wider
Menstruation Begins
Puberty usually starts earlier
Eggs mature
Body fat increases
Produce estrogen and progesterone
Changes during Puberty

11. Male and Female Reproductive Systems

12. Female Reproductive System
Function
To produce eggs and, if an egg is fertilized, to nourish a developing baby until birth
Organs involved are the ovaries, fallopian tubes, uterus and vagina.

13. Female Reproductive System
Fallopian Tubes
Ovary
Uterus
Endometrium
Cervix
Vagina

14. Female Reproductive System
Fallopian Tubes
Ovary
Uterus
Urinary Bladder
Cervix
Urethra
Vagina
Rectum

15. Endometrium

16. Female organs
Ovaries- are the female reproductive structure that produces eggs
Egg (ova)- female sex cells
Fallopian tubes- passageways for eggs as they travel from the ovary to the uterus.
Uterus- a hollow muscular organ about the size of a pear.

17. Female organs
Endometrium- soft layer of tissue and blood cells that nourishes a fertilized egg
Cervix- an opening at the base of the uterus
Vagina- a muscular passageway leading from the uterus to the outside of the body

18. Menstrual Cycle
Process during which an egg matures, is released, and the uterus prepares to receive it
Each menstrual cycle lasts approximately 28 days
A menstrual period lasts for 3 to 5 days

20. Male Reproductive System
Function
To produce sperm and the hormone testosterone
The male reproductive system includes the testes, scrotum and penis

21. Male Reproductive System
Rectum
Urinary bladder
Vas Deferens
Urethra
Penis
Epididymis
Testes
Cowpers Gland
Scrotum

22. Male Reproductive System
Urinary bladder
Vas Deferens
Seminal Vesicles
Prostate Gland
Urethra
Cowpers Gland
Penis
Epididymis
Testes

23. Rectum
Cowpers Gland
Cowpers Gland

24. Male Organs
Testes- organs where testosterone and sperm are produced Sperm– male sex cell Scrotum- sac of skin that holds the testes just under the penis Penis- external male sex organ also used to urinate. Semen- the mixture of sperm cells and fluid

25. Male organs
Seminal vesicle- two glands that secrete seminal fluid Prostate gland- it forms a fluid that combines with sperm and a fluid from the seminal vesicle to make semen Vas Deferens- tubes in which sperm and other fluids are combined to make semen Urethra- a tube that at different times carries urine and semen out of the body

26. Letter to Brian Task see Assignment sheet for details DUE DATE is
Dear Brian,
Define Adolescence and Puberty
5 Physical Changes for Boys
5 Physical Changes for Girls
1 Social Change for both
1 Mental Change for both
Sincerely,
Your Name