NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE An Unusual Case of Animal Reproduction by Joann B. Powell Department of Biological Sciences Clark Atlanta University‚ Atlanta‚ GA Elethia W. Tillman Department of Biology Spelman College‚ Atlanta‚ GA Part I – Andrea Smith’s Dilemma Andrea Smith was taking notes for her biology exam. Her professor has told her that the exam would cover‚ in part‚ the differences between sexual and asexual reproduction. As she reviewed her notes and prepared for
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1mm Histology of tube wall Outer serosa continuous with uterine surface Middle muscular layer Inner mucosa Lumen (hollow area) Interior surface of oviduct Mucosal surface highly folded Cilia move fluid‚ gametes Cilia grow and regress thru cycle Estrogen-dependent Tubal fluid Abundant when gametes embryo present Secreted by peg cell Secretion is estrogen-dependent‚ reduced by progesterone Tubal motility Smooth muscle peristalsis (moves contents in one direction) Move active at ovulation
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Question #5 a) "Estrogens are produced by the body in greater amounts in females. They are necessary for normal sexual development of the female and for regulation of the menstrual cycle during the childbearing years. Androgens are produced by the body in greater amounts in males. However‚ androgens are also present in females in small amounts." (quoted from http://www.mayoclinic.org/drugs-supplements/estrogen-androgen-combination-oral-route-parenteral-route/description/drg-20069917). For males
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Uterine Leiomyomas Marteasha Gordon‚Rebecca Lugo‚ Rooznikchy Thomas‚ and Dominique Zawackis Chamberlain College of Nursing Uterine leiomyomas also known as fibroids or myomas‚ are the most common pelvic benign tumor that affect 70%-80% of women. Uterine fibroids are round or semi-round growths of smooth muscle of the myometrium and fibrous tissue. The growths can be located in the uterine cavity‚ uterine wall‚ or on the surface of the uterus into the abdominal cavity. Also
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Plagued with Polycystic Ovarian Syndrome Thesis: Polycystic Ovarian Syndrome‚ a growing disease among women. It’s vital that women suffering with Polycystic Ovarian Syndrome have knowledge and know the importance of this disease. I would like to educate you about Polycystic Ovarian Syndrome‚ with that I will be discussing the history‚ symptoms‚ and treatment options to better help you. If left untreated for prolonged amount of time serious health problems could arise. I. Introduction II. History
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Half yearly studies Chapter 2: Reproduction What is Sexual Reproduction? Sexual reproduction occurs when offspring result from the fusion of a male reproductive cell and a female reproductive cell. These special reproductive cells are called gametes and they are produced in the reproductive organs of the organism. External Fertilisation * Gametes are tiny and are dehydrated extremely easily‚ so they only survive in specific conditions. * Some animals‚ specifically those that live in
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Birth control has many different uses and purposes that can benefit the overall life of the user. Of course‚ one of the main reasons that women get birth control is to prevent pregnancy. It is a good reason to get because there has been a substantial decline of teen pregnancies‚ with the rate dropping by 57 percent between 1991 and 2013. If a teen does not use any form of birth control‚ there is an eighty-five percent chance that they will get pregnant within a year‚ and anything is better than that
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increase slaughter time and increase animal growth cycles; to name a few. Let’s take a closer look at the specific hormones used in this industry. Estradiol‚ in the human body‚ is a form of estrogen‚ a female sex hormone produced by the ovaries. Estradiol is used to treat symptoms of menopause‚ prevention of osteoporosis‚ replacement of estrogen in women with ovarian failure and sometimes used as a cancer treatment. Progesterone is used to cause menstrual periods in women. It is also used to prevent overgrowth
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painful periods * May reduce the severity or frequency of menstrual migraines * Can improve bleeding and pain associated with endometriosis and fibroids * May improve acne * Can lower risk of ovarian and uterine cancer * Can lower risk of pelvic inflammatory disease * May improve bone density in the years just before menopause * Can help you to regulate the menstrual cycle. * If you have abnormal cycles when you are young. * Control PMS (Premenstrual syndrome)
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Written Report in Mapeh Group II Artificial Contraceptives and Natural Family Planning Artificial contraception‚ also known as birth control‚ are medications used to prevent pregnancy. The primary type of artificial contraception is the birth control pill. Types: Mechanical Devices – materials that are inserted or fitted to the reproductive system to prevent pregnancy. Such mechanical devices are condoms‚ which are inserted to the male genitalia‚ diaphragm‚ which is inserted to the
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