Presentation is loading. Please wait.

Presentation is loading. Please wait.

Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18.

Similar presentations


Presentation on theme: "Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18."— Presentation transcript:

1 Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18

2 Copyright © by Holt, Rinehart and Winston. All rights reserved. ANSWERS 1.FALSE—sperm are made in the testes 2.TRUE 3.FALSE—most cases of testicular cancer occur among men aged FALSE—testosterone is the primary hormone in males. 5.TRUE 6.TRUE 7.FALSE—women typically only produce & release one mature egg each month. 8.TRUE 9.TRUE

3 Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Contents Section 1 Male Reproductive System Section 2 Female Reproductive System Section 3 Pregnancy and Early Development Chapter 18

4 Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18 Section 1 Male Reproductive System

5 Copyright © by Holt, Rinehart and Winston. All rights reserved. Section 1 Male Reproductive System Objectives 1.State the role of the male reproductive system. 2.Describe the function of each of the organs of the male reproductive system. 3.Summarize four problems that can occur with the male reproductive system. 4.List five things a male can do to keep his reproductive system healthy. Chapter 18

6 Copyright © by Holt, Rinehart and Winston. All rights reserved. Section 1 Male Reproductive System What the Male Reproductive System Does 1.Produce sperm 2.Deliver sperm to the female reproductive system Chapter 18

7 Copyright © by Holt, Rinehart and Winston. All rights reserved. Section 1 Male Reproductive System VOCABULARY: Sperm: sex cells produced in the testes needed to fertilize an egg Fertilization: the process by which a sperm and an egg and their genetic material join to create a new human life. Testes (testicles): male reproductive organs produce sperm and testosterone Chapter 18

8 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Testosterone: the major male sex hormone regulates body changes during puberty influences sperm production Scrotum: a sac containing the testes muscles in the scrotum move the testes closer to or further from the body to regulate temperature Chapter 18 Section 1 Male Reproductive System

9 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Penis: urine exits the body through the penis via the urethra delivers sperm to the female reproductive system sperm from the testes travel through the epididymis and the vas deferens in the vas deferens, sperm mixed with fluids to make semen Chapter 18 Section 1 Male Reproductive System

10 Copyright © by Holt, Rinehart and Winston. All rights reserved.

11

12 Chapter 18

13 Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 18

14 Copyright © by Holt, Rinehart and Winston. All rights reserved. K e e p i n g t h e M a l e R e p r o d u c t i v e S y s t e m H e a l t h y

15 Keeping the Male Reproductive System Healthy Know the symptoms of testicular cancer. Look for: unusual lumps swelling feeling of heaviness, pain or discomfort in your scrotum or abdomen If you notice any of these symptoms, tell your parents and see a doctor right away. Chapter 18 Section 1 Male Reproductive System

16 Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18 Section 2 Female Reproductive System

17 Copyright © by Holt, Rinehart and Winston. All rights reserved. Objectives 1.State the role of the female reproductive system. 2.Describe the function of each of the organs of the female reproductive system. 3.Describe the changes in the body during the menstrual cycle. 4.Summarize four problems that can occur with the female reproductive system. 5.List five things a female can do to keep her reproductive system healthy. Chapter 18 Section 2 Female Reproductive System

18 Copyright © by Holt, Rinehart and Winston. All rights reserved. What the Female Reproductive System Does 1.Produce eggs 2.Provide a place to support and nourish a developing baby Chapter 18 Section 2 Female Reproductive System

19 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Ovaries: female reproductive organs that produce: EGGS the hormones ESTROGEN and PROGESTERONE Estrogen regulates body changes during puberty. Estrogen and progesterone are involved in: regulating monthly cycles the changes that take place in the body during pregnancy Chapter 18 Section 2 Female Reproductive System

20 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Eggs (ova): Sex cells produced by the female reproductive organs, called ovaries. Eggs are already formed in a female’s ovaries when she is born. Females are born with all of the eggs they will ever have. They do not make more. Chapter 18 Section 2 Female Reproductive System

21 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Vagina: female reproductive organ that connects the outside of the body to the uterus receives sperm during reproduction the part of the birth canal through which a baby is delivered Urethra: carries urine out of the body from the bladder located above and separate from the vagina Chapter 18 Section 2 Female Reproductive System

22 Copyright © by Holt, Rinehart and Winston. All rights reserved. VOCABULARY: Uterus: provides a place to support a developing baby eggs travel from the ovaries to the uterus through the fallopian tubes Chapter 18 Section 2 Female Reproductive System

23 Copyright © by Holt, Rinehart and Winston. All rights reserved.

24 How the Menstrual Cycle Works Prior to ovulation, the lining of the uterus thickens to prepare to support a growing human during pregnancy. Menstruation: the breakdown and discharge of the uterine lining out of the vagina. occurs if a released egg is not fertilized lasts on average 3 to 7 days average menstrual cycle lasts 28 days Ovulation usually occurs on the 14 th day Chapter 18 Section 2 Female Reproductive System

25 Copyright © by Holt, Rinehart and Winston. All rights reserved.

26

27

28 K e e p i n g t h e F e m a l e R e p r o d u c t i v e S y s t e m H e a l t h y

29 Keeping your reproductive system healthy BOYS GIRLS

30 Copyright © by Holt, Rinehart and Winston. All rights reserved. Keeping the Female Reproductive System Healthy Know the signs of breast cancer. Be aware of any unusual lumps in your breasts. If you detect any lumps, tell your parents and see a doctor right away. Chapter 18 Section 2 Female Reproductive System

31 Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18 Section 3 Pregnancy and Early Development

32 Copyright © by Holt, Rinehart and Winston. All rights reserved. Objectives 1.Describe how a human life begins. 2.Summarize how a baby develops during the three trimesters of pregnancy. 3.Identify five things a couple can do to stay healthy before and during pregnancy. 4.Summarize four problems that can occur during pregnancy. 5.Describe the stages of childbirth. 6.List three changes that occur during early childhood development. Chapter 18 Section 3 Pregnancy and Early Development

33 Copyright © by Holt, Rinehart and Winston. All rights reserved. How Life Begins Sexual intercourse: The reproductive process in which the penis is inserted into the vagina and through which a new human life may begin. Inside the vagina, sperm travel through the cervix, into the uterus and then the fallopian tubes, where fertilization normally occurs. After fertilization, the zygote travels to the uterus and embeds in the uterine wall. The developing human in the first 8 weeks of development is called an embryo. Chapter 18 Section 3 Pregnancy and Early Development

34 Copyright © by Holt, Rinehart and Winston. All rights reserved. How a Baby Develops PLACENTA: an organ that develops inside the uterus provides a developing baby with nutrients and removes waste UMBILICAL CORD: connects the embryo to the placenta Carries blood supply and nutrients to the baby Chapter 18 Section 3 Pregnancy and Early Development

35 Copyright © by Holt, Rinehart and Winston. All rights reserved. How a Baby Develops (1 st trimester) Embryo grows rapidly. By the 4 th week: heart starts beating arm and leg buds appear eyes and brain start to develop By the end of the first trimester, all the major body parts and organs have formed. Chapter 18 Section 3 Pregnancy and Early Development

36 Copyright © by Holt, Rinehart and Winston. All rights reserved. How a Baby Develops (2 nd trimester) Beyond the first trimester, the developing baby is called a fetus. In the second trimester, the organs continue to develop. By 4 months, the mother can feel the fetus move or kick. Chapter 18 Section 3 Pregnancy and Early Development

37 Copyright © by Holt, Rinehart and Winston. All rights reserved. How a Baby Develops (3 rd trimester) By the end of the second trimester: facial features are apparent you can see if the fetus is male or female. In the third trimester, the fetus gains most of its weight. At the end of 9 months, the baby is born. Chapter 18 Section 3 Pregnancy and Early Development

38 Copyright © by Holt, Rinehart and Winston. All rights reserved. Keeping Healthy Before and During Pregnancy Chapter 18 1.Avoid alcohol, tobacco, caffeine, and other drugs. All of these will adversely affect the developing baby. 2.Maintain a nutritious diet. 3.Take prenatal vitamins prescribed by a doctor. 4.Get regular, moderate amounts of exercise. 5.Have medical conditions evaluated by a doctor. 6.Schedule prenatal care visits throughout the pregnancy. Section 3 Pregnancy and Early Development

39 Copyright © by Holt, Rinehart and Winston. All rights reserved.

40

41

42

43 Early Child Development The first year is the fastest period of physical growth after birth. By the end of one year, most babies begin walking and talking. In the second and third years, babies become more socially independent, may have temper tantrums, and become toilet trained. Chapter 18 Section 3 Pregnancy and Early Development

44 Copyright © by Holt, Rinehart and Winston. All rights reserved. End of Chapter 18


Download ppt "Copyright © by Holt, Rinehart and Winston. All rights reserved. Reproduction, Pregnancy, and Development Chapter 18."

Similar presentations


Ads by Google