1. Puberty Period of sexual development, males and females are sexually mature and able to produce children

2. Changes during Puberty Male Female 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 Oily Skin/Acne Body Odor/More Perspiration Growth Spurt 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 Hair growth under arms, legs and pubic area Hips get wider Menstruation Begins Puberty usually starts earlier Both

3. Male Reproductive System

4. Puberty Period of sexual development, males and females are sexually mature and able to produce children

5. Structure and Function male reproductive system is made up of both internal and external organs once a sperm cell is released it must unite with an egg from a female in order for reproduction to occur Fertilization - is the joining of sperm and egg

6. Urinary bladder Penis Vas Deferens Urethra Epididymis Testes Bulbourethral gland

7. Urinary bladder Vas Deferens Urethra Penis Epididymis Testes Seminal Vesicles Bulbourethral gland Prostate Gland

9. Parts of the Male Reproductive System Testes: made of coiled tubules in which sperm are protected Function: 1. produce testosterone 2. produce sperm Scrotum: a sac of skin that holds the testes outside of the body protects sperm by keeping the temperature of the testes slightly lower than normal body temperature Epididymis: J-shaped tube located at the back of each testes here sperm mature and gain the ability to move

10. Parts of the Male Reproductive System Penis: external male sexual organ the tip is called the head, or glans, it is covered with a loose skin called the foreskin some males are circumcised shortly after birth (foreskin is removed) Vas Deferens: 18 inch tubes located on the back of each testes 2 vas deferens tubes loop over the bladder to join the urethra (the tube that passes through the penis to the outside of the body) the urethra carries urine and semen but not at the same time there is a valve that keeps the two from mixing as the sperm travel through the vas deferens they combine with fluids produced by : seminal vesicles, cowpers, and prostate gland as the sperm mixes with these fluids – a liquid called semen is formed

11. Keeping Healthy Cleanliness Sexual Abstinence Protection from trauma Self-Exams

12. Disorders of the Male Reproductive System Sterility: unable to reproduce caused by: can’t produce healthy sperm, environmental factors, exposure to chemicals, mumps in adulthood Undescended Testes: one of the testes does not descend into the scrotum sperm may not develop properly because the temperature is too high usually corrected by surgery or treated with hormones Inguinal Hernia: small intestines pushes into scrotum through a weak area in the wall near the scrotum

13. Disorders (continued) Enlarged Prostate – Common problem in men after middle age, may make urination painful or difficult, medication can help, sometimes surgery is required Prostate Cancer: most common form of cancer in men, surgically remove prostate Testicular Cancer: hard lumps, abnormal thickening, enlarged testis usually occurs in men ages 15-34