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Foundations of embryology

Place human development in time while mastering embryological vocabulary and the principles of meiosis.

  • 23 explained questions
  • 18 flashcards
  • 96 estimated course minutes

Updated

What you will learn

  • Define embryology and distinguish its principal fields of study.
  • Locate the major periods and early stages of embryonic development.
  • Explain how meiosis produces haploid cells and generates genetic variation.

Course outline

  1. Locating human development

    Build an initial time map from fertilisation to birth before studying the underlying mechanisms.

    9 min

  2. Fields and methods of embryology

    Distinguish descriptive, causal, pathological, and molecular approaches, together with the techniques that transformed their study.

    12 min

  3. Cells, germ layers, and time markers

    Use cellular vocabulary accurately and follow the stages that organise the first four weeks.

    17 min

  4. From the early days to organogenesis

    Describe fertilisation, cleavage, the first four weeks, and the progressive differentiation of organs.

    18 min

  5. Meiosis: principle and first division

    Relate gamete production to a reductional division and to genetic variation during prophase I and metaphase I.

    22 min

  6. Meiosis: second division and biological meaning

    Follow sister-chromatid separation and compare meiosis and mitosis precisely.

    18 min

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In the same subject

  • Mitosis and meiosis

    Two cell-division programmes: preservation of the diploid genome by mitosis, then reduction, recombination, and gamete production by meiosis.

  • Oogenesis and folliculogenesis

    Follow the origin, chronology, meiotic divisions, follicular maturation, and regulation of the female germ line.

  • Spermatogenesis: the male germ line

    Describe sperm production, maturation, kinetics and endocrine regulation.

  • Ovulation and the oocyte

    Understand the LH surge, release of the secondary oocyte and the properties of the cell that may be fertilized.