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Chapter 1: Miracle Of Birth - BulSU PDF

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Document Details

WholesomeSequence

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Bulacan State University

Tags

human reproduction pregnancy fetal development embryology

Summary

This document is a chapter on the miracle of birth, covering topics such as the development of the fetus, stages of pregnancy and the processes involved. It includes diagrams and references on the subject.

Full Transcript

Objectives: 1. Understand the miracle of birth. 2. Identify the stages of growth of developing baby. 3. Enumerate the changes in woman during pregnancy. 4. Demonstrate the importance of being knowledgeable about the human reproduction. 5...

Objectives: 1. Understand the miracle of birth. 2. Identify the stages of growth of developing baby. 3. Enumerate the changes in woman during pregnancy. 4. Demonstrate the importance of being knowledgeable about the human reproduction. 5. Appreciate own birth story. Topics to be Discussed 1.The Miracle of Birth 2. Stages of Development of Developing Baby 3. Stages of Pregnancy 4. Physical and Emotional Changes a Woman may Experience during Pregnancy The Miracle of Birth: A Complex Tapestry of Life The miracle of birth is a phrase often used to describe the awe-inspiring process of human reproduction and childbirth The Biological Marvel 1. At its core, birth is a biological marvel. 2. The process of fetal development is nothing short of astonishing. 3. Childbirth itself is a complex and often arduous process. The Emotional and Spiritual Journey 1.Beyond the biology, birth is a profoundly emotional and spiritual experience. 2.Childbirth can also be a deeply spiritual experience. Societal Implications 1. It is the foundation of families, communities, and nations. LIFERONTATIZI STAGES OF DEVELOPMENT OF THE FETUS Fertilization The process of combining the male gamete, or sperm, with the female gamete, or ovum. Fertilization 1. Release of the egg is called ovulation. 2. At ovulation, the mucus in the cervix becomes more fluid and more elastic. 3. If fertilization does not occur, the egg moves down the fallopian tube to the uterus. 4. If a sperm penetrates the egg, fertilization results. 5. In the uterus, the cells continue to divide. 6. If more than one egg is released and fertilized, the pregnancy involves more than one fetus, usually two (twins). ILAVUTOON Development of the Blastocyst Blastocyst: A thin- walled hollow structure in early embryonic development that contains a cluster of cells called the inner cell mass from which the embryo arises. Development of the Blastocyst 1. About 6 days after fertilization, the blastocyst attaches to the lining of the uterus. 2. The wall of the blastocyst is one cell thick except in one area, where it is three to four cells thick. 3. The placenta produces several hormones that help maintain the pregnancy. 4. The placenta also carries oxygen and nutrients from mother to fetus and waste materials from fetus to mother. 5. When the sac is formed (by about day 10 to 12), the blastocyst is considered an embryo. MAILTAPINONT Development of the Embryo Human embryonic development - refers to the development and formation of the human embryo. Embryo - early stage of human development in which organs and critical body structures are formed. Development of the Embryo 1. This stage is characterized by the formation of most internal organs and external body structures. 2. At this time, the embryo elongates, first suggesting a human shape. 3. The heart and major blood vessels begin to develop earlier. 4. The heart begins to pump fluid through blood vessels by day 20. 5. Almost all organs are completely formed by about 10 weeks after fertilization. 6. During this period, the embryo is most vulnerable to the effects of drugs, radiation, and viruses. MOREYB Placenta and Embryo at About 8 Weeks At 8 weeks of pregnancy, the placenta and fetus have been developing for 6 weeks. Placenta and Embryo at About 8 Weeks A thin membrane separates the embryo's blood in the villi from the mother's blood that flows through the space surrounding the villi (intervillous space). This arrangement does the following: 1.Allows materials to be exchanged between the blood of the mother and that of the embryo. 2.Prevents the mother's immune system from attacking the embryo. Placenta and Embryo at About 8 Weeks The embryo floats in fluid (amniotic fluid), which is contained in a sac (amniotic sac).The amniotic fluid does the following: 1.Provides a space in which the embryo can grow freely. 2.Helps protect the embryo from injury. Development of the Fetus and Placenta Fetus - fetus is a developing baby beginning in the 10th week of pregnancy. Placenta - temporary organ that connects a growing baby to your uterus during pregnancy. Development of the Fetus and Placenta During this stage, the structures that have already formed grow and develop. The following are markers during pregnancy: 1.By 12 weeks of pregnancy: The fetus fills the entire uterus. 2.By about 14 weeks: The sex can be identified. 3.By about 16 to 20 weeks: Typically, the pregnant woman can feel the fetus moving. 4.By about 24 weeks: The fetus has a chance of survival outside the uterus. CAGENPYRN Stages of Pregnancy A typical pregnancy lasts 40 weeks from the first day of your last menstrual period (LMP) to the birth of the baby. It was divided into 3 stages: 1.first trimester 2.Second trimester 3.Third trimester Physical Changes a Woman may Experience during 1st Trimester 1. Missed period. 2. Extreme fatigue 3. Tender, swollen breasts. Nipples may protrude. 4. Nausea with or without throwing up 5. Cravings or aversion to certain foods 6. Constipation 7. Frequent urination 8. Headache 9. Heartburn 10. Weight gain or loss 11. Light bleeding or spotting Emotional Changes a Woman may Experience during 1st Trimester 1.Excitement and joy 2.Anxiety and fear 3.Mood swings 4.Uncertainty 5.Increased sensitivity Physical Changes in a Woman during 2nd Trimester 1. Back, abdomen, groin, or thigh aches and pains. 2. Stretch marks on your abdomen, breasts, thighs, or buttocks. 3. A line on the skin running from belly button to pubic hairline. 4. Patches of darker skin, usually over the cheeks, forehead, nose, or upper lip. This is sometimes called the mask of pregnancy. 5. Numb or tingling hands. Itching on the abdomen, palms, and soles of the feet. 6. Swelling of the ankles, fingers, and face. 7. Varicose veins. Emotional Changes in a Woman during 2nd Trimester 1.Increased confidence 2.Bonding with the baby 3.Anxiety about the future 4.Body image issues 5.Mood swings Physical Changes a Woman may Experience during 3rd Trimester 1. Swelling of the ankles, fingers, and face. 2. Hemorrhoids. 3. Tender breasts, which may leak a watery pre-milk. 4. Your belly button may protrude. 5. The baby "dropping," or moving lower in your abdomen. 6. Contractions, which can be a sign of real or false labor. 7. Other symptoms you may notice in the third trimester include shortness of breath, increased discomfort, and vaginal discharge. Emotional Changes a Woman may Experience during 3rd Trimester 1. Anticipation and excitement. 2. Anxiety and nervousness. 3. Nesting instinct. 4. Impatience. 5. Body image concerns. References https://academic.oup.com/humrep https://www.edumedia- sciences.com/en/node/40-reproduction

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