This article is about the development of embryos in animals. For the development of plant embryos, see Sporophyte.
1 - morula, 2 - blastula1 - blastula, 2 - gastrula with blastopore; orange - ectoderm, red - endoderm
Embryology (from Greek ἔμβρυον, embryon, "the unborn, embryo"; and -λογία, -logia) is the branch of animal biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses. Additionally, embryology encompasses the study of congenital disorders that occur before birth, known as teratology.
Early embryology was proposed by Marcello Malpighi, and known as preformationism, the theory that organisms develop from pre-existing miniature versions of themselves. Aristotle proposed the theory that is now accepted, epigenesis. Epigenesis is the idea that organisms develop from seed or egg in a sequence of steps. Modern embryology developed from the work of Karl Ernst von Baer, though accurate observations had been made in Italy by anatomists such as Aldrovandi and Leonardo da Vinci in the Renaissance.[citation needed]
Embryology (from Greek ἔμβρυον, embryon, "the unborn, embryo"; and -λογία, -logia) is the branch of animal biology that studies the prenatal development...
University of Malta. Retrieved 2007-10-13. Larsen, William J. (2001). Human embryology (3. ed.). Philadelphia, Pa.: Churchill Livingstone. pp. 53–86. ISBN 978-0-443-06583-5...
The Human Fertilisation and Embryology Authority (HFEA) is an executive non-departmental public body of the Department of Health and Social Care in the...
Williams & Wilkins. p. 165. ISBN 978-84-96921-46-7. Larsen W (2001). Human Embryology (3rd ed.). Elsevier Saunders. pp. 159–163. ISBN 978-0-443-06583-5. "Main...
Chapter 38. "Development of the ear", 651–653. ISBN 978-0-443-06684-9. UNSW Embryology. Hearing-Inner Ear Development. Archived from the original on 30 September...
Comparative embryology is the branch of embryology that compares and contrasts embryos of different species, showing how all animals are related. Aristotle...
week the embryo is termed a fetus. The eight weeks have 23 stages. Human embryology is the study of this development during the first eight weeks after fertilization...
In embryology, the primordial phallus refers to the clitoris of a female or the penis in the male, particularly during embryonic development of the urinary...
Fertilisation and Embryology Act can refer to the following acts of the Parliament of the United Kingdom: Human Fertilisation and Embryology Act 1990 Human...
embryologist who is widely regarded as one of the pioneers of modern embryology. Wolff was born in Berlin, Brandenburg. In 1759 he graduated as an M.D...
is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living...
Brain vesicles are the bulge-like enlargements of the early development of the neural tube in vertebrates, which eventually give rise to the brain. Vesicle...
In 1983, an authority on Embryology, Keith L. Moore, had a special edition published of his widely used textbook on Embryology (The Developing Human: Clinically...
The European Society of Human Reproduction and Embryology (ESHRE) was founded in 1985 by Robert Edwards (University of Cambridge) and Jean Cohen (Paris)...
known as the "Meckel-Serres Law". This attempted to link comparative embryology with a "pattern of unification" in the organic world. It was supported...
OCLC 1036250938. "Chapter 25. Germ Layers and Their Derivatives - Review of Medical Embryology Book - LifeMap Discovery". discovery.lifemapsc.com. Archived from the...
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