Development and birth
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Pregnancy normally takes 40 weeks, during which time the embryo develops into a fetus and all organs develop and begin functioning. The uterus, where the baby grows, increases in size and ascends into the abdomen. Delivery involves three stages: dilation of the cervix, expulsion or pushing of the baby, and delivery of the placenta after birth to ensure the mother's health.
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There are three stages of labor: the dilation stage where the cervix dilates as uterine contractions press the fetus against it; the expulsion stage when the cervix is fully dilated and the fetus is pushed through the birth canal; and the placental stage where the placenta and fetal membranes are delivered after birth through continued uterine contractions.
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During pregnancy, several structures develop to support the embryo, including the placenta, umbilical cord, and amniotic sac. The placenta provides nutrients and oxygen from the mother's bloodstream, while the umbilical cord connects the embryo to the placenta. After three months, the embryo has all its organs and is called a fetus. Labor occurs in three phases - dilation, expulsion, and delivery of the placenta - over approximately nine months to deliver the baby.
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The document summarizes the three stages of labor and delivery:
1) The dilation stage where the cervix thins and dilates as the uterus contracts, pushing the fetus onto the cervix.
2) The expulsion stage where, once fully dilated, the woman actively pushes to help expel the baby through the birth canal.
3) The placental stage where contractions continue until the placenta is delivered, ending the labor and delivery process.
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Fertilization occurs when an egg and sperm unite in the uterus. The uterus expands during a normal 40-week pregnancy to accommodate the growing fetus. The placenta provides oxygen and nutrients to the fetus through the umbilical cord. Labor involves three stages: cervical dilation, birth of the baby, and delivery of the placenta. It is important for the health of the mother and baby that the woman receives prenatal care during pregnancy.
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Pregnancy is about 40 weeks journey consists of stages where your body changes several times. Read on to know more about stages of pregnancy.
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There are three stages of labor: the dilation stage where the cervix dilates as uterine contractions press the fetus against it; the expulsion stage when the cervix is fully dilated and the fetus is pushed through the birth canal; and the placental stage where the placenta and fetal membranes are delivered after birth through continued uterine contractions.
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During pregnancy, several structures develop to support the embryo, including the placenta, umbilical cord, and amniotic sac. The placenta provides nutrients and oxygen from the mother's bloodstream, while the umbilical cord connects the embryo to the placenta. After three months, the embryo has all its organs and is called a fetus. Labor occurs in three phases - dilation, expulsion, and delivery of the placenta - over approximately nine months to deliver the baby.
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The document summarizes the three stages of labor and delivery:
1) The dilation stage where the cervix thins and dilates as the uterus contracts, pushing the fetus onto the cervix.
2) The expulsion stage where, once fully dilated, the woman actively pushes to help expel the baby through the birth canal.
3) The placental stage where contractions continue until the placenta is delivered, ending the labor and delivery process.
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Fertilization occurs when an egg and sperm unite in the uterus. The uterus expands during a normal 40-week pregnancy to accommodate the growing fetus. The placenta provides oxygen and nutrients to the fetus through the umbilical cord. Labor involves three stages: cervical dilation, birth of the baby, and delivery of the placenta. It is important for the health of the mother and baby that the woman receives prenatal care during pregnancy.
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Pregnancy is defined as the period from fertilization until birth, usually lasting around 38-40 weeks or 9 months. It is divided into three trimesters where the embryo develops into a fetus. Signs of pregnancy include a missed period and a positive result on a pregnancy test. At delivery, the fetus is expelled either through a normal spontaneous vaginal birth or via Cesarean section if there are risks to the mother or baby with a vaginal delivery. An episiotomy, or incision to the vaginal opening, may be performed during a normal delivery to ease the baby's passage and prevent uncontrolled tearing.
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The document outlines the three stages of childbirth: the first stage involves cervical dilation and contractions; the second stage is when the baby is pushed out; and the third stage occurs after birth when the placenta is delivered. It provides details on the progression of each stage, from early labor through full dilation and the baby crowning to the final delivery of the placenta.
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The document summarizes the key stages of pregnancy and labor. It describes the fallopian tubes and their role in transporting eggs and sperm. It then explains the three months of gestation, including the embryonic and fetal stages and key physical developments. Finally, it outlines the three stages of labor: the dilation stage where the cervix dilates; the expulsion stage where the baby is pushed through the birth canal; and the placental stage where the placenta is delivered.
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Pregnancy involves carrying an embryo or fetus inside the womb. Common early symptoms include missed periods, nausea, tender breasts, fatigue, and frequent urination. Pregnancy is divided into three trimesters, with physical and developmental changes occurring throughout. Potential problems include miscarriage, ectopic pregnancy, preeclampsia, and stillbirth. True labor contractions become stronger and closer together over time, while false contractions are irregular. As labor progresses, the cervix dilates and a woman's water may break, signaling delivery.
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The female reproductive system consists of 8 main organs that work together to produce eggs, support a pregnancy, and deliver a baby. The ovaries produce eggs and hormones, while the fallopian tubes transport eggs to the uterus. The uterus shelters and nourishes the developing fetus. The vagina is the birth canal that receives sperm during sex and allows the baby to pass during delivery. The breasts produce milk to nourish an infant. Pregnancy lasts about 40 weeks, and labor involves the dilation of the cervix and the delivery of the baby through the vagina.
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The document summarizes the stages of labor and delivery, including the dilation stage where the cervix gradually opens from 3 to 10 cm, the expulsion stage where pushing occurs to deliver the baby, and the placental stage where the placenta is delivered. It also defines menopause as the ending of menstrual cycles around age 51 when the ovaries stop functioning. Finally, it provides the medical term for a total hysterectomy where the uterus, cervix, ovaries, and fallopian tubes are all surgically removed, breaking down the term's meaning from its Greek and Latin roots.
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2) It explains menopause as the time when a woman's periods stop due to changes making her unable to get pregnant, normally occurring between ages 45-55.
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The uterus is the organ in which the developing fetus resides. It is pear-shaped and located in the lower abdomen, held in place by muscles and tissues. The uterus nurtures the fertilized egg as it develops into an embryo and fetus until birth. The time required for fetal development is called gestation. Labor and delivery involves three stages - dilation of the cervix, expulsion of the baby through contractions, and delivery of the placenta afterwards.
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This document discusses signs and symptoms of pregnancy and methods for confirming a pregnancy. It outlines early signs like a missed period, breast tenderness, and nausea. It describes blood and urine tests as ways to confirm pregnancy, noting that blood tests are more accurate and can detect pregnancy earlier. It also discusses medical visits during pregnancy, with more frequent visits in the third trimester, and covers prenatal tests like ultrasounds and amniocentesis that can provide information about the health and development of the fetus.
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When considering theimportance of child development, it is common to think of contexts that begin during infancy and continue through toddlerhood, including nutrition, learning, and building relationships. However, a child’s developmental journey truly begins at conception. Chapter 2 explored the importance of genetics and experiences during the time before birth. The period from conception through birth is called the prenatal stage. During this time, the mother and her support team are ultimately responsible for providing the child with everything needed to grow physically and mentally. They are equally as responsible for protecting the child from harm during this period. The prenatal period is crucial for preparing the child for exposure to the outside world.
The next developmental stage in this journey begins immediately after birth and continues through the first 4 weeks of life. This is called the neonatal stage. Babies are especially vulnerable during this time period. Every detail about how they eat, sleep, and interact with other people can have huge implications for their future development. These implications are important for early childhood caregivers to recognize, regardless of the age at which the child begins receiving care.
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Previous section 4.1 What Are Prenatal and Neonatal Stage… Next section
4.2 Prenatal Development
What occurs from conception to birth is a complex and intricate process. In discussing this process, we focus first on how conception occurs, the distinction between gestational age and fetal age, and the phases of prenatal development.
Conception
Each month in the female body, an egg is released from the ovary as part of the reproductive cycle. The process of releasing the egg, or ovum, is called ovulation. Ovulation typically occurs halfway through a woman’s menstrual cycle, approximately 14 days after menstruation begins. After ovulation, the ovum travels down the fallopian tube toward the uterus (see Figure 4.1). On a typical month, the ovum continues its journey to the uterus alone and is flushed out along with the uterine lining in the menstruation process. However, if the woman has recently had intercourse, or has intercourse after the ovum is released and before it is flushed out of the body, the process can potentially be altered. The male reproductive cell, called the sperm, is designed to penetrate the wall of the recently released ovum. If a sperm successfully penetrates the ovum wall, it results in fertilization. Sperm can live in the female body for roughly 3–5 days, and a released ovum is viable for fertilization for anywhere from 24 to 48 hours after it is released. This means that every month there is a small, but significant, window of time in which a woman can become pregnant. Even if intercourse occurs days before ovulation takes place, fertilization i ...
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This slide presentation covers how to know labor is beginning, the three parts of the first stage, the second stage, third stage, and what to expect immediately postpartum
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Pregnancy is defined as the period from fertilization until birth, usually lasting around 38-40 weeks or 9 months. It is divided into three trimesters where the embryo develops into a fetus. Signs of pregnancy include a missed period and a positive result on a pregnancy test. At delivery, the fetus is expelled either through a normal spontaneous vaginal birth or via Cesarean section if there are risks to the mother or baby with a vaginal delivery. An episiotomy, or incision to the vaginal opening, may be performed during a normal delivery to ease the baby's passage and prevent uncontrolled tearing.
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The document outlines the three stages of childbirth: the first stage involves cervical dilation and contractions; the second stage is when the baby is pushed out; and the third stage occurs after birth when the placenta is delivered. It provides details on the progression of each stage, from early labor through full dilation and the baby crowning to the final delivery of the placenta.
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The document summarizes the key stages of pregnancy and labor. It describes the fallopian tubes and their role in transporting eggs and sperm. It then explains the three months of gestation, including the embryonic and fetal stages and key physical developments. Finally, it outlines the three stages of labor: the dilation stage where the cervix dilates; the expulsion stage where the baby is pushed through the birth canal; and the placental stage where the placenta is delivered.
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The document summarizes the normal process of a spontaneous vaginal delivery for a 27 year old female in her first pregnancy. It describes fertilization and the development of the zygote and morula. It explains that the morula enters the uterus on day 3 and separates into trophoblast and embryoblast layers by day 4, with the trophoblast implanting into the endometrium on day 6 to begin the embryonic development stages through week 8. Fetal development then continues from week 9 until birth, when the newborn is delivered vaginally.
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Pregnancy involves carrying an embryo or fetus inside the womb. Common early symptoms include missed periods, nausea, tender breasts, fatigue, and frequent urination. Pregnancy is divided into three trimesters, with physical and developmental changes occurring throughout. Potential problems include miscarriage, ectopic pregnancy, preeclampsia, and stillbirth. True labor contractions become stronger and closer together over time, while false contractions are irregular. As labor progresses, the cervix dilates and a woman's water may break, signaling delivery.
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The female reproductive system consists of 8 main organs that work together to produce eggs, support a pregnancy, and deliver a baby. The ovaries produce eggs and hormones, while the fallopian tubes transport eggs to the uterus. The uterus shelters and nourishes the developing fetus. The vagina is the birth canal that receives sperm during sex and allows the baby to pass during delivery. The breasts produce milk to nourish an infant. Pregnancy lasts about 40 weeks, and labor involves the dilation of the cervix and the delivery of the baby through the vagina.
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The document summarizes the stages of labor and delivery, including the dilation stage where the cervix gradually opens from 3 to 10 cm, the expulsion stage where pushing occurs to deliver the baby, and the placental stage where the placenta is delivered. It also defines menopause as the ending of menstrual cycles around age 51 when the ovaries stop functioning. Finally, it provides the medical term for a total hysterectomy where the uterus, cervix, ovaries, and fallopian tubes are all surgically removed, breaking down the term's meaning from its Greek and Latin roots.
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This document summarizes key aspects of the female reproductive system. It describes a gynecologist as a physician who specializes in treating conditions of the female reproductive system, such as performing pelvic exams and prescribing contraception. It outlines the three stages of labor and delivery as dilation of the cervix, expulsion of the baby, and delivery of the placenta. It also explains that a total abdominal hysterectomy involves removing the uterus, cervix, ovaries, and fallopian tubes, often to treat or prevent the spread of cancer.
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This document provides information about puberty, reproductive health, sexually transmitted infections, and HIV/AIDS for adolescents. It defines puberty and the physical and emotional changes that occur. It discusses the male and female reproductive systems and menstrual cycle. It aims to provide adolescents with accurate information to make responsible decisions about relationships and sexuality while dispelling common myths. The key messages are that menstruation is a normal part of development and communication between partners is important for family planning and preventing STIs including HIV.
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The document summarizes key aspects of the female reproductive system:
1) It describes the three stages of labor and delivery - dilation, expulsion, and placental stages.
2) It explains menopause as the time when a woman's periods stop due to changes making her unable to get pregnant, normally occurring between ages 45-55.
3) It provides details on a total abdominal hysterectomy-bilateral salpingo-oophorectomy surgery, which is a removal of the uterus, cervix, ovaries, and fallopian tubes, often needed for cancer or potential cancer in the uterus.
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The document provides information about childbirth and gynecologic emergencies for first responders. It describes the stages of labor and delivery, potential emergencies during birth like premature cord prolapse and placenta abruption, steps to take during emergencies, and considerations around home births versus hospital births.
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Gynecology is the medical specialty focusing on women's health, especially their reproductive systems. A gynecologist specializes in diagnosing and treating disorders of the female reproductive system. Labor and delivery involves three stages: the dilation stage when the cervix dilates to 10 centimeters; the expulsion stage when the baby passes through the birth canal; and the placental stage when the placenta is delivered.
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Pregnancy involves three trimesters with various physical and emotional changes. Labor has four stages from early contractions to delivery of the placenta. While movies portray birth as clean, it actually involves bodily discharges of blood, feces, and urine. Coping strategies for labor include hypnosis, movement, water, touch and positioning to use gravity. Things to avoid are lying on the back, episiotomy, and immediate cord clamping. After birth, bonding with the newborn through breastfeeding is important.
Presentation #10 medical terminology
The uterus is the organ in which the developing fetus resides. It is pear-shaped and located in the lower abdomen, held in place by muscles and tissues. The uterus nurtures the fertilized egg as it develops into an embryo and fetus until birth. The time required for fetal development is called gestation. Labor and delivery involves three stages - dilation of the cervix, expulsion of the baby through contractions, and delivery of the placenta afterwards.
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This document discusses signs and symptoms of pregnancy and methods for confirming a pregnancy. It outlines early signs like a missed period, breast tenderness, and nausea. It describes blood and urine tests as ways to confirm pregnancy, noting that blood tests are more accurate and can detect pregnancy earlier. It also discusses medical visits during pregnancy, with more frequent visits in the third trimester, and covers prenatal tests like ultrasounds and amniocentesis that can provide information about the health and development of the fetus.
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This document provides definitions for various medical terms related to obstetrics and gynecology. It defines terms such as alpha-fetoprotein, amniocentesis, amnion, amniotic fluid, amniotic sac, anencephaly, and many other terms beginning with letters A through M. Each term is defined concisely and may include a related image for visualization. The document serves as a glossary of OB/GYN terms for medical professionals.
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What occurs from conception to birth is a complex and intricate process. In discussing this process, we focus first on how conception occurs, the distinction between gestational age and fetal age, and the phases of prenatal development.
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Development and birth
- 1. Development and Birth BraiaKisic Biology 120 Presentation Chapter 10 07/07/2010
- 2. Highlighted Terminology Pregnancy Uterus Dilation stage, expulsion stage, and placental stage
- 3. Pregnancy Pregnancy is the period of time that it takes for a baby to develop. It normally takes 40 weeks. During this time the embryo develops into a fetus. All the organs are developing and are beginning to function.
- 4. Uterus The uterus is the area where the baby grows and develops. During pregnancy the uterus experiences many changes. It will increase in size and ascend into the abdomen.
- 5. Dilation Stage The dilation stage is the first stage of the delivery process. The uterus contracts which cause changes to the cervix. The cervix will soften and dilate, leading into the second stage of delivery.
- 6. Expulsion Stage Also called the “pushing stage”. This stage begins when mother is completely dilated and is pushing.
- 7. Placental Stage After the birth of the baby it is necessary to deliver the placenta, the source of nutrition for the baby. The uterus will contract a little more to encourage the separation of the placenta. The placenta must be completely removed for the health of the mother.
- 8. References Fremgen, Bonnie F. and Suzanne S. Frucht. Medical Terminology; A living language. New Jersey: Pearson Education, 2009 www.babycenter.com www.discoveryhealth.com www.womensfitness.net