Human Reproduction Introduction Quiz
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Questions and Answers

What is the first step in the process of conception?

  • Release of a healthy ovum from the ovary (correct)
  • Passage of ovum into the fallopian tube
  • Deposition of sperm into the vagina
  • Fertilization at the outermost portion of the fallopian tube

    • Where does fertilization take place in the female reproductive system?

  • Outermost portion of the fallopian tube (correct)
  • Vagina
  • Ovary
  • Uterus

    • How long does it take for the entire process of conception, including fertilization, to occur?

  • About a day
  • About a week
  • About an hour
  • About 5 hours (correct)

    • What initiates pregnancy?

    <p>Penetration of the ovum's thick outer membrane by a spermatozoon</p> Signup and view all the answers

    Why is it important for nurses to have a basic understanding of conception and prenatal development?

    <p>To identify problems or variations and initiate appropriate interventions</p> Signup and view all the answers

    What is the main role of nurses in genetic counseling during prenatal development?

    <p>Provide information on hereditary influences on fetal development</p> Signup and view all the answers

    How is fetal development during pregnancy measured?

    <p>In number of weeks after fertilization</p> Signup and view all the answers

    During which stage of pregnancy do major organs and structures begin to emerge?

    <p>Embryonic stage</p> Signup and view all the answers

    Where does fertilization typically occur?

    <p>Fallopian tube</p> Signup and view all the answers

    What is formed when the morula reaches the uterine cavity?

    <p>Blastocyst</p> Signup and view all the answers

    Where does implantation of the blastocyst occur?

    <p>Upper uterus (fundus)</p> Signup and view all the answers

    What term is used for the process of attachment and placental formation?

    <p>Implantation</p> Signup and view all the answers

    Which cell layer forms the central nervous system, special senses, skin, and glands?

    <p>Ectoderm</p> Signup and view all the answers

    What do the three embryonic layers give rise to?

    <p>Organs and organ systems</p> Signup and view all the answers

    What is the starting point of pregnancy?

    <p>Fertilization</p> Signup and view all the answers

    What is formed from the outer layer of cells surrounding the blastocyst cavity?

    <p>Trophoblast</p> Signup and view all the answers

    During which week does fertilization typically occur in a 28-day cycle?

    <p>Second week</p> Signup and view all the answers

    Where does mitosis or cleavage of the zygote occur?

    <p>Fallopian tube</p> Signup and view all the answers

    What happens to the morula as fluid enters from the uterine cavity?

    <p>It becomes a blastocyst</p> Signup and view all the answers

    When does the fetal stage of development begin?

    <p>At the end of the eighth week after conception</p> Signup and view all the answers

    What is the main function of amniotic fluid during pregnancy?

    <p>To maintain a constant body temperature for the fetus</p> Signup and view all the answers

    Which hormone preserves the corpus luteum and its progesterone production during pregnancy?

    <p>Chorionic gonadotropin (CG)</p> Signup and view all the answers

    What is the source of amniotic fluid during pregnancy?

    <p>Fluid transported from the maternal blood across the amnion</p> Signup and view all the answers

    What is the composition of amniotic fluid?

    <p>98% water, 2% organic matter</p> Signup and view all the answers

    What can alterations in amniotic fluid volume during pregnancy be associated with?

    <p>Maternal diabetes</p> Signup and view all the answers

    What is hydramnios associated with?

    <p>Premature rupture of membranes</p> Signup and view all the answers

    How does the placenta act during pregnancy?

    <p>As a pass-through between the mother and fetus</p> Signup and view all the answers

    What term describes substances that cause birth defects during pregnancy?

    <p>Teratogens</p> Signup and view all the answers

    What is the main function of human placental lactogen (hPL) during pregnancy?

    <p>Modulating fetal and maternal metabolism</p> Signup and view all the answers

    What happens to fetal circulation after birth?

    <p>It becomes similar to adult circulation</p> Signup and view all the answers

    What is the average duration of pregnancy from the first day of the last menstrual period?

    <p>280 days</p> Signup and view all the answers

    During which stage of pregnancy do major organs and structures begin to emerge?

    <p>Embryonic stage</p> Signup and view all the answers

    When does fertilization typically occur in a 28-day cycle?

    <p>2 weeks after the last menstrual period</p> Signup and view all the answers

    What is formed when the zygote is slowly transported into the uterine cavity by tubal muscular movements?

    <p>Morula</p> Signup and view all the answers

    What is the starting point of pregnancy?

    <p>Fertilization</p> Signup and view all the answers

    During which week does the morula reach the uterine cavity after fertilization?

    <p>72nd week</p> Signup and view all the answers

    What is the process of attachment and placental formation called?

    <p>Implantation</p> Signup and view all the answers

    Where does fertilization typically occur in the female reproductive system?

    <p>$1^{st}$ third of the ampulla of the fallopian tube</p> Signup and view all the answers

    What is formed from the outer layer of cells surrounding the blastocyst cavity?

    <p>Chorion</p> Signup and view all the answers

    What happens to fetal circulation after birth?

    <p>It reverses direction</p> Signup and view all the answers

    What is hydramnios associated with?

    <p>High amniotic fluid levels</p> Signup and view all the answers

    What initiates pregnancy?

    <p>Fertilization</p> Signup and view all the answers

    During which stage of prenatal development are all major body organs and main external features completed?

    <p>Embryonic stage</p> Signup and view all the answers

    What is the source of amniotic fluid during pregnancy?

    <p>Maternal blood transported across the amnion</p> Signup and view all the answers

    What is the term used for too little amniotic fluid at term, associated with maternal diabetes, neural tube defects, and malformations of the central nervous system and/or gastrointestinal tract?

    <p>Oligohydramnios</p> Signup and view all the answers

    Which hormone preserves the corpus luteum and its progesterone production to maintain the endometrial lining of the uterus during pregnancy?

    <p>Chorionic gonadotropin (CG)</p> Signup and view all the answers

    What does the placenta act as during pregnancy?

    <p>A hormone factory and a transfer organ</p> Signup and view all the answers

    What is the main function of amniotic fluid during pregnancy?

    <p>To cushion the fetus from trauma</p> Signup and view all the answers

    When does the fetal stage of development begin?

    <p>At the end of the eighth week after conception</p> Signup and view all the answers

    What term is used for substances that cause birth defects during pregnancy?

    <p>Teratogens</p> Signup and view all the answers

    What happens to fetal circulation after birth?

    <p>It becomes similar to adult circulation</p> Signup and view all the answers

    What initiates pregnancy?

    <p>Fertilization of the ovum by sperm</p> Signup and view all the answers

    What is formed from the inner cell mass of a blastocyst?

    <p>Embryo and amnion</p> Signup and view all the answers

    What is the first step in conception?

    <p>Release of the ovum from the ovary</p> Signup and view all the answers

    Where does fertilization typically take place in the female reproductive system?

    <p>Fallopian tube</p> Signup and view all the answers

    What happens to fetal circulation after birth?

    <p>It undergoes significant changes</p> Signup and view all the answers

    When does the fetal stage of development begin?

    <p>After implantation of the blastocyst</p> Signup and view all the answers

    What is the main function of amniotic fluid during pregnancy?

    <p>To protect the fetus from infections</p> Signup and view all the answers

    What is formed from the outer layer of cells surrounding the blastocyst cavity?

    <p>Chorion</p> Signup and view all the answers

    Where does mitosis or cleavage of the zygote occur?

    <p>In the fallopian tube</p> Signup and view all the answers

    What can alterations in amniotic fluid volume during pregnancy be associated with?

    <p>Respiratory distress syndrome in the fetus</p> Signup and view all the answers

    What is hydramnios associated with?

    <p>Excessive amniotic fluid accumulation</p> Signup and view all the answers

    What term describes substances that cause birth defects during pregnancy?

    <p>Teratogens</p> Signup and view all the answers

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