P REPRODUCTIVE SYSTEM Objectives: Describe the parts of the male/female reproductive systems Understand how to take care and seek help for the male/female reproductive systems

REPRODUCTIVE SYSTEM Systems of organs involved in producing offspring

MALE REPRODUCTIVE SYSTEM Two main functions Produce and store sperm

Adolescence Puberty Testosterone Begins: 9 – 14 yrs of age Enlargement of the external and internal genitalia

Male Reproductive Organs Penis Sex organ Scrotum Skin sac where the testicles are located Regulates body temp

Testicles Located in the scrotum Produce sperm Sperm - Male reproductive cell

Epididymis a long tube located along the testicles complete their maturation stored in the lower portion immature and incapable of fertilizing

Vas Deferens Tubes Matures travel to the seminal vesicle Tubes that extend from epididymis to urethra

Seminal Vesicle Produces nourishing fluid contains fructose, which provides an energy source for the sperm; prostaglandins, which contribute to the mobility and viability of the sperm; and proteins that cause slight coagulation reactions in the semen after ejaculation.

Prostate Gland size of a walnut secretions function to enhance the motility of the sperm. The secretions of the prostate are thin, milky colored, and alkaline. They function to enhance the motility of the sperm.

Cowper’s Glands size of a pea secrete an alkaline mucus-like fluid

Urethra extends from the urinary bladder to the tip of the penis. passageway urethra It is a passageway for sperm and fluids from the reproductive system and urine from the urinary system. While reproductive fluids are passing through the urethra, sphincters contract tightly to keep urine from entering the urethra.

Problems with male reproductive system Hernia Sterility Testicular cancer Prostate cancer Hernia – intestine rips through ab wall by top of scrotum Sterility – can’t reproduce Test cancer – 14-40 years old Prostate cancer – 50+

Care for male reproductive system Regular check ups Bathe Wear protective equipment Practice abstinence spongy erectile tissue is a loose network of connective tissue with many spaces ED – inability to achieve or maintain an erection Affects approx. 30 mil men in USA. Not unusual to experience sometime – usually due to psychological problems: stress, depression, worrying, grief Physical problems: nerve damage – usually accompanying diabetes or alcoholism Atherosclerosis [fatty deposits] in arteries supplying penis medications: HTN, antihistamines, antinausea & antiseizure, antidepressants, sedatives, tranquilzers Cigarettes, marijuana & alcohol Treat ED – eliminate problem. Medications: Viagra type enhance nitric oxide that is released with arousal and caused arterioles to dilate