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What is the Endocrine System Regulates long term changes in the body such as growth and development Endocrine Gland – a group of organs that produce and release chemical substances that signal changes in other parts of the body Complete endocrine vocabulary using pages 460 - 463 Male Reproductive System Function is to produce sex hormones, to produce and store sperm, and to deliver sperm to the female reproductive system external sex organ through which sperm leaves the male COMPLETE THE PATHWAY OF SPERM – Page 466 Male Reproductive Vocab • Sperm – male reproductive cells • Testes – male reproductive glands • Testosterone – male sex hormone, affects the production of sperm _____4______ The prostate gland adds a fluid that protects the sperm. _____2______ Sperm travel through the vas deferens to the seminal vesicle. ______1_____ Sperm are produced in the testes. They mature and are stored in the epididymis. _____3______ Seminal vesicles add a fluid that provides a source of energy for the active sperm. ____5_______ The bulbourethral glands add a fluid that protects sperm from the acidic conditions in the urethra. The Pathway of Sperm Sperm Seminal The prostate bulbourethral travel vesicles through gland add glands adds the athe fluid vas atestes. add fluid that deferens athat provides are produced in Theyto the a protects lubricating source seminal the offluid energy vesicles. sperm. that for aids the active passage sperm. of mature and are stored in the the epididymis. sperm through the urethra. Seminal vesicle Vas deferens Prostate gland Bulbourethral gland Urethra Penis Epididymis Testis Slide 6 of 22 Important Facts: • Because they are located outside of the body, the temperature of the testes is a few degrees lower then the rest of the body. Sperm need this lower temperature to develop properly and survive. • Several million (40-600 million) sperm are released during one ejaculation. It take ONE to fertilize an egg. • Caring for the male reproductive system involves cleanliness, sexual abstinence, protection from trauma, self-exams, and regular medical checkups Female Reproductive System The functions of the female reproductive system are to produce sex hormones, to produce eggs, and to provide a nourishing environment in which a fertilized egg can develop into a baby. Hollow, muscular organ where baby develops (womb) Passageways that carry eggs away from ovaries Birth canal, leads from uterus to outside of the body The Menstrual Cycle •During the menstrual cycle, an ovary releases a mature egg. The egg travels to the uterus. If the egg is not fertilized, the uterine lining is shed and a new cycle begins •Caring for the female reproductive system involves cleanliness, sexual abstinence, prompt treatment for infections, self-exams, and regular medical checkups. •Once a female has reached puberty, it is recommended to have a yearly check up by a gynecologist. •During the yearly exam the doctor will perform a Pap smear, this is when a sample of cells is taken from the cervix. Female Reproductive Vocab • Ova – the female reproductive cells, eggs • Ovaries – reproductive glands in which eggs are produced • Estrogen – female sex hormone that activates physical changes at puberty • Progesterone – activates changes in women before and during pregnancy • Ovulation – ripened egg is released once a month Breast and Testicular Awarness Page 476-477 Importance of self-exams • Breast cancer is the 2nd most common cancer in women and cause of cancer deaths • In 2010 : – 206,966 women and 2,039 men in the United States were diagnosed with breast cancer. – 40,996 women and 439 men in the United States died from breast cancer. • Testicular cancer is the most common cancer among men between 15 and 34. • In 2013 there are: – About 7,920 new cases of testicular cancer will be diagnosed. – About 370 men will die of testicular cancer.