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1 - morula, 2 - blastula 1 - 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.
This list is incomplete; you can help by adding missing items. ( May 2016 ) Fetal abnormalities are conditions that affect a fetus or embryo , are able to be diagnosed prenatally, and may be fatal or cause disease after birth.
The following is a list of terms used to describe biological disorders of development, arranged by root word and shared prefix: Biological development disorders (cellular, tissue and organic) Feature
Heart disorders (Congenital heart defects) Hemifacial microsomia; Holoprosencephaly; Huntington's disease; Hirschsprung's disease, or congenital aganglionic megacolon; Hypertrichosis; Hypoglossia; Hypomelanism or hypomelanosis (albinism) Hypospadias; Haemophilia; Heterochromia; Hemochromatosis
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Also gastrocoel. The central internal cavity of the gastrula in most animal embryos, fated to develop into the lumen of the digestive tube ; the primitive gut. The archenteron initially has only one open end, known as the blastopore. B birth blastocoel Also blastocoele, blastocele, cleavage cavity, and segmentation cavity. The fluid-filled or yolk -filled cavity that forms in the developing ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
An embryo is the initial stage of development for a multicellular organism.In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell.