Active Learning in Embryology Foundations
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Questions and Answers

Which developmental timeline is compared with the embryological developmental timeline?

  • Gestational developmental timeline (correct)
  • Environmental developmental timeline
  • Genetic developmental timeline
  • Postnatal developmental timeline

    • During which stage of development are injuries from teratogen exposure likely to be most severe?

  • Neonatal stage
  • Pre-embryonic stage
  • Embryonic stage (correct)
  • Fetal stage

    • What is the first embryonic precursor that develops in the early stages of embryogenesis?

  • Blastocoel
  • Germ layer
  • Trophoblast
  • Embryoblast (correct)

    • Which type of twinning involves the splitting of one fertilized egg into two embryos?

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

    In the classification of twins, what does monochorionic mean?

    <p>One placenta for two embryos</p> Signup and view all the answers

    What is the fluid-filled sac that forms during early embryonic development called?

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

    Which of the following is NOT a type of monozygotic twinning?

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

    What term describes the three primary layers of cells that form during embryonic development?

    <p>Germ layers</p> Signup and view all the answers

    What are the two embryonic layers present in development?

    <p>Epiblast and Hypoblast</p> Signup and view all the answers

    Which of the following pairs represent the contributions to the placenta?

    <p>Cytotrophoblast and Syncytiotrophoblast</p> Signup and view all the answers

    Which extraembryonic sac is responsible for providing extraembryonic cells to the chorion?

    <p>Primary Yolk Sac</p> Signup and view all the answers

    What are the three germ layers that develop during week 3?

    <p>Ectoderm, Mesoderm, Endoderm</p> Signup and view all the answers

    Which structure is NOT considered one of the organs forming during week 3?

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

    Which type of body folding leads to the fetal position during development?

    <p>Craniocaudal Folding</p> Signup and view all the answers

    What is the primary instructional method used in this session?

    <p>Discussion, Large Group</p> Signup and view all the answers

    Which of the following is NOT a learning objective of this session?

    <p>Classify various types of stem cells.</p> Signup and view all the answers

    What type of exposure is emphasized for evaluation in this embryology session?

    <p>Teratogen exposure</p> Signup and view all the answers

    What aspect of twinning is included in the learning objectives?

    <p>Differentiate twinning types by morphology and timing</p> Signup and view all the answers

    Which germ layers' involvement is expected to be evaluated during clinical scenarios?

    <p>All three germ layers</p> Signup and view all the answers

    What type of resource is required for this session?

    <p>Lecture notes and slides</p> Signup and view all the answers

    In a clinical context, which objective relates to understanding the impact of germ layer injury?

    <p>Infer which anatomical structures may be impacted</p> Signup and view all the answers

    Which method of learning does this session primarily adopt?

    <p>Group discussions and interactions</p> Signup and view all the answers

    Which of the following represents the two embryonic contributions to the placenta?

    <p>Cytotrophoblast and syncytiotrophoblast</p> Signup and view all the answers

    Identify the three germ layers that develop during week 3.

    <p>Ectoderm, endoderm, mesoderm</p> Signup and view all the answers

    What are the three extraembryonic membranes present by week 3?

    <p>Amnion, secondary yolk sac, allantois</p> Signup and view all the answers

    Which fold is associated with the formation of body cavities during development?

    <p>Ventral fold</p> Signup and view all the answers

    During which developmental week do the primitive streak, notochord, and neural plate appear?

    <p>Week 3</p> Signup and view all the answers

    Which extraembryonic sac is formed from extraembryonic cells and contributes to the chorion during development?

    <p>Primary yolk sac</p> Signup and view all the answers

    Which learning objective is concerned with the effects of congenital infections at specific developmental stages?

    <p>Evaluate the relative impact of teratogen exposure or congenital infection at different points in development.</p> Signup and view all the answers

    What method is primarily used for instruction in this embryology session?

    <p>Flipped session with pre-readings.</p> Signup and view all the answers

    Which germ layer involvement is emphasized for evaluation in clinical scenarios?

    <p>Multiple germ layers.</p> Signup and view all the answers

    What is the significance of the 'Foundations of Embryology & Early Development' readings for this session?

    <p>They provide essential background knowledge for understanding teratogen effects.</p> Signup and view all the answers

    Which objective involves applying concepts from the lecture to a clinical situation?

    <p>Apply material from the live foundations of development/early development lecture.</p> Signup and view all the answers

    In terms of developmental impact, what does the term 'teratogen' refer to?

    <p>An environmental factor that disrupts normal development.</p> Signup and view all the answers

    To assess the impact of germ layer injury, which could be a focus of this session?

    <p>Recognizing the specific structures derived from each germ layer.</p> Signup and view all the answers

    What is the primary discussion format for this large group session?

    <p>Large group discussions led by an instructor.</p> Signup and view all the answers

    What is the primary focus of the discussed competency in embryology?

    <p>Altered structure and function due to pathology</p> Signup and view all the answers

    Which sequence correctly describes the key events during week 1 of embryonic development?

    <p>1 embryoblast, 1 blastocoel, 1 trophoblast</p> Signup and view all the answers

    What distinguishes dizygotic twins from monozygotic twins?

    <p>They develop from two separate fertilized eggs.</p> Signup and view all the answers

    Which type of twinning is characterized by two embryos sharing the same chorion and amniotic sac?

    <p>Monochorionic Monoamnionic</p> Signup and view all the answers

    What is highlighted as the primary concern in evaluating teratogen exposure?

    <p>The timing of exposure during critical periods</p> Signup and view all the answers

    Which of the following is NOT a germ layer involved in embryonic development?

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

    In the context of embryology, what does the term 'critical periods' refer to?

    <p>Phases of rapid growth and development with increased susceptibility to injury</p> Signup and view all the answers

    What is the main focus of reviewing the germ layers in embryology sessions?

    <p>Understanding the origin of various tissues and organs</p> Signup and view all the answers

    Study Notes

    Session Overview

    • Active Learning Embryology session on August 6, 2024, from 10:30 am to 12:00 pm.
    • Directed by James Proffitt, PhD, from the Department of Cellular & Molecular Medicine.
    • Session employs a flipped classroom format, emphasizing discussion and large group engagement.

    Instructional Methods

    • Primary method: IM07 - Discussion, Large Group (more than 12 participants).
    • Resources include written or visual media relevant to embryology concepts.

    Learning Objectives

    • Assess the impact of teratogen exposure and congenital infections during various developmental stages.
    • Identify involved germ layers in specific clinical cases.
    • Predict anatomical structures affected by damage to specific germ layers.
    • Classify types of twinning based on morphology and timing.
    • Relate foundational embryology concepts to clinical scenarios.

    Key Concepts to Review

    • Distinction between Embryological vs. Gestational Developmental Timelines.
    • Recognize critical periods in embryonic development; identify three stages most susceptible to teratogen-induced injuries.
    • Understand germ layers and categorize anatomical structures accordingly.

    Types of Twinning

    • Dizygotic: Two separate eggs fertilized.
    • Monozygotic:
      • Dichorionic Diamniotic: Two chorions, two amniotic sacs.
      • Monochorionic Diamniotic: One chorion, two amniotic sacs.
      • Monochorionic Monoamniotic: One chorion, one amniotic sac.

    Developmental Timeline Key Events

    • Week 1:

      • Rule of 1s: One embryonic precursor (embryoblast), one placental precursor (trophoblast), one fluid-filled sac (blastocoel).

    • Week 2:

      • Rule of 2s: Two embryonic layers (epiblast, hypoblast), two placental contributors (cytotrophoblast, syncytiotrophoblast), two extraembryonic sacs (amnion, primary yolk sac).

    • Week 3:

      • Rule of 3s: Three germ layers (ectoderm, mesoderm, endoderm), three key structures (primitive streak, notochord, neural plate), three extraembryonic membranes (amnion, secondary yolk sac, allantois).

    • Week 4:

      • Dorsal fold (neural groove), ventral fold (body cavities), craniocaudal fold (fetal positioning due to head growth and elongation).

    Preparation for Session

    • Review lecture notes and previous embryology recordings to grasp core concepts and enhance discussion readiness.

    Session Overview

    • Active Learning Embryology session on August 6, 2024, from 10:30 am to 12:00 pm.
    • Directed by James Proffitt, PhD, from the Department of Cellular & Molecular Medicine.
    • Session employs a flipped classroom format, emphasizing discussion and large group engagement.

    Instructional Methods

    • Primary method: IM07 - Discussion, Large Group (more than 12 participants).
    • Resources include written or visual media relevant to embryology concepts.

    Learning Objectives

    • Assess the impact of teratogen exposure and congenital infections during various developmental stages.
    • Identify involved germ layers in specific clinical cases.
    • Predict anatomical structures affected by damage to specific germ layers.
    • Classify types of twinning based on morphology and timing.
    • Relate foundational embryology concepts to clinical scenarios.

    Key Concepts to Review

    • Distinction between Embryological vs. Gestational Developmental Timelines.
    • Recognize critical periods in embryonic development; identify three stages most susceptible to teratogen-induced injuries.
    • Understand germ layers and categorize anatomical structures accordingly.

    Types of Twinning

    • Dizygotic: Two separate eggs fertilized.
    • Monozygotic:
      • Dichorionic Diamniotic: Two chorions, two amniotic sacs.
      • Monochorionic Diamniotic: One chorion, two amniotic sacs.
      • Monochorionic Monoamniotic: One chorion, one amniotic sac.

    Developmental Timeline Key Events

    • Week 1:

      • Rule of 1s: One embryonic precursor (embryoblast), one placental precursor (trophoblast), one fluid-filled sac (blastocoel).

    • Week 2:

      • Rule of 2s: Two embryonic layers (epiblast, hypoblast), two placental contributors (cytotrophoblast, syncytiotrophoblast), two extraembryonic sacs (amnion, primary yolk sac).

    • Week 3:

      • Rule of 3s: Three germ layers (ectoderm, mesoderm, endoderm), three key structures (primitive streak, notochord, neural plate), three extraembryonic membranes (amnion, secondary yolk sac, allantois).

    • Week 4:

      • Dorsal fold (neural groove), ventral fold (body cavities), craniocaudal fold (fetal positioning due to head growth and elongation).

    Preparation for Session

    • Review lecture notes and previous embryology recordings to grasp core concepts and enhance discussion readiness.

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    Related Documents

    Active Learning Embryology PDF - August 2024 (Arizona)

    Description

    This quiz covers the key concepts of embryology within the framework of active learning. Participants will engage in discussions and explore written and visual resources to deepen their understanding. Designed for students attending the session on August 6, 2024, this quiz aligns with the educational goals set by Dr. James Proffitt.

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