Embryology
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  Embryology



Embryology

   The study of the development of an organism during the embryonic and fetal stages of life.

RELATED TERMS
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Development
The process of growth and differentiation.

Organism
A living thing, such as an animal, a plant, a bacterium, or a fungus.

Embryonic
Undeveloped, related to the embryo.

Fetal
Having to do with the fetus.



SIMILAR TERMS
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Embreeville Center
The Embreeville Center is a hospital in Coatesville, Pennsylvania, United States.

Embryo
The early stages of development before an organism becomes self supporting.

Embryo biopsy
An experimental test for genetic defects in embryos before they are implanted using IVF (in vitro fertilization).

Embryo Cloning
The formation of one or more genetically identical organisms derived by vegetative reproduction from a single cell. The source nuclear material can be embryo-derived, fetus-derived, or taken from an adult somatic cell.

Embryo Clonings
The formation of one or more genetically identical organisms derived by vegetative reproduction from a single cell. The source nuclear material can be embryo-derived, fetus-derived, or taken from an adult somatic cell.

Embryo Creation, Research
The prenatal stage of mammalian development characterized by rapid morphological changes and the differentiation of basic structures.

Embryo Creations, Research
The prenatal stage of mammalian development characterized by rapid morphological changes and the differentiation of basic structures.

Embryo Death
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo Deaths
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo Development
Morphologic and physiologic growth and development of the mammalian embryo or fetus.

Embryo Disposition
Process for deciding utilization or disposal of an embryo that is fertilized but not immediately transplanted and resulting course of action.

Embryo Dispositions
Process for deciding utilization or disposal of an embryo that is fertilized but not immediately transplanted and resulting course of action.

Embryo Loss
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo Losses
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo Organizer
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryo Organizers
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryo Reduction
Selective abortion of one or more embryos or fetuses in a multiple gestation pregnancy. The usual goal is to improve the outcome for the remaining embryos or fetuses.

Embryo Reductions
Selective abortion of one or more embryos or fetuses in a multiple gestation pregnancy. The usual goal is to improve the outcome for the remaining embryos or fetuses.

Embryo Research
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)

Embryo Resorption
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo Resorptions
Pregnancy loss during the embryonic stage of development which, in humans, comprises the second through eighth week after fertilization.

Embryo splitting
Separation of an early-stage embryo into two or more embryos with identical genetic makeup, essentially creating identical twins or higher multiples (triplets, quadruplets, etc.).

Embryo transfer
An assisted reproductive technology in which an already fertilized egg is inserted into a woman's uterus to help her get pregnant.

Embryo Transfer
The transfer of mammalian embryos from an in vivo or in vitro environment to a suitable host to improve pregnancy or gestational outcome in human or animal. In human fertility treatment programs, preimplantation embryos ranging from the 4-cell stage to the blastocyst stage are transferred to the uterine cavity between 3-5 days after FERTILIZATION IN VITRO.

Embryo Transfers
The transfer of mammalian embryos from an in vivo or in vitro environment to a suitable host to improve pregnancy or gestational outcome in human or animal. In human fertility treatment programs, preimplantation embryos ranging from the 4-cell stage to the blastocyst stage are transferred to the uterine cavity between 3-5 days after FERTILIZATION IN VITRO.

Embryo Weight
The weight of the fetus in utero, which is usually estimated by various formulas based on measurements made during PRENATAL ULTRASONOGRAPHY.

Embryo Weights
The weight of the fetus in utero, which is usually estimated by various formulas based on measurements made during PRENATAL ULTRASONOGRAPHY.

Embryo, Non Mammalian
The embryo of species other than mammals. For the chicken, use the specific CHICK EMBRYO.

Embryo, Non-Mammalian
The embryo of species other than mammals. For the chicken, use the specific CHICK EMBRYO.

Embryo, Nonmammalian
The embryo of species other than mammals. For the chicken, use the specific CHICK EMBRYO.

Embryo, Plant
The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield.

Embryo, Preimplantation
The mammalian embryo in the post-morula stage in which a fluid-filled cavity, enclosed primarily by trophoblast, contains an inner cell mass which becomes the embryonic disc.

Embryoid bodies (EBs)
Irregularly shaped clumps of cellular structures that arise when embryonic stem cells or embryonic germ cells are cultured. Embryoid bodies usually contain tissue from all three of the germ layers: endoderm, mesoderm, and ectoderm. Embryoid bodies are not part of normal development and occur only in vitro.

Embryologic Gene Expression Regulation
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.

Embryologies
The study of the development of an organism during the embryonic and fetal stages of life.

Embryonal Cancer
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryonal Cancers
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryonal carcinoma
A malignant germ cell tumor that occurs most often in the testes and accounts for about 40% of testicular tumors. Under the microscope, these tumors may resemble tissues of early embryos. This type of tumor can grow rapidly and spread outside the testicle. Embryonal carcinoma of the ovary is rare. It usually occurs before the age of 30 and is often prepubertal.

Embryonal Carcinoma
A highly malignant, primitive form of carcinoma, probably of germinal cell or teratomatous derivation, usually arising in a gonad and rarely in other sites. It is rare in the female ovary, but in the male it accounts for 20% of all testicular tumors. (From Dorland, 27th ed & Holland et al., Cancer Medicine, 3d ed, p1595)

Embryonal Carcinoma Cell
Colony-forming cells which give rise to neoplasms.

Embryonal Carcinoma Cells
Colony-forming cells which give rise to neoplasms.

Embryonal Carcinomas
A highly malignant, primitive form of carcinoma, probably of germinal cell or teratomatous derivation, usually arising in a gonad and rarely in other sites. It is rare in the female ovary, but in the male it accounts for 20% of all testicular tumors. (From Dorland, 27th ed & Holland et al., Cancer Medicine, 3d ed, p1595)

Embryonal Neoplasm
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryonal Neoplasms
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryonal Rhabdomyosarcoma
A form of RHABDOMYOSARCOMA arising primarily in the head and neck, especially the orbit, of children below the age of 10. The cells are smaller than those of other rhabdomyosarcomas and are of two basic cell types: spindle cells and round cells. This cancer is highly sensitive to chemotherapy and has a high cure rate with multi-modality therapy. (From Holland et al., Cancer Medicine, 3d ed, p2188)

Embryonal Rhabdomyosarcomas
A form of RHABDOMYOSARCOMA arising primarily in the head and neck, especially the orbit, of children below the age of 10. The cells are smaller than those of other rhabdomyosarcomas and are of two basic cell types: spindle cells and round cells. This cancer is highly sensitive to chemotherapy and has a high cure rate with multi-modality therapy. (From Holland et al., Cancer Medicine, 3d ed, p2188)

Embryonic
Undeveloped, related to the embryo.

Embryonic Antigen-1, Stage-Specific
Carbohydrate antigen which is accumulated in various human cancer tissues and secreted into the blood stream. The carbohydrate moiety can be further modified with fucose or sialic acid. Monoclonal antibodies have been determined which can discriminate each subgroup of this antigen in the sera of cancer patients. Sialyl SSEA-1 antigen is particularly elevated in the sera of patients with a variety of tumors.

Embryonic Body Weight
The weight of the fetus in utero, which is usually estimated by various formulas based on measurements made during PRENATAL ULTRASONOGRAPHY.

Embryonic Body Weights
The weight of the fetus in utero, which is usually estimated by various formulas based on measurements made during PRENATAL ULTRASONOGRAPHY.

Embryonic germ cells
Pluripotent stem cell lines that migrate, during early development, to the future gonads to form the progenitors of egg or sperm cells. The properties of EG cells are similar to those of embryonic stem cells, but may differ in the DNA methylation of some imprinted regions.

Embryonic hemoglobin
Hemoglobin E, the normal embryonic hemoglobin, the main type of hemoglobin found in the human embryo. The E stands for embryonic and also for epsilon, the chain unique to embryonic hemoglobin (which was originally known as Gower-2).

Embryonic Induction
Embryonic cell differentiation in which one group of cells evokes and controls the differentiation of other groups of cells.

Embryonic Inductions
Embryonic cell differentiation in which one group of cells evokes and controls the differentiation of other groups of cells.

Embryonic Organizer
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryonic Organizers
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryonic stem cell lines
Populations of dividing cells established from embryonic stem cells and cultured in the laboratory. Within embryonic cell lines are cells that can produce more embryonic stem cells or, under conditions of differentiation, give rise to collections of cells that include most or all cell types that can be found in a postimplantation embryo, fetus, or developed organism.

Embryonic stem cells
Primitive (undifferentiated ) cultured cells from the embryo that have the potential to become a wide variety of specialized cell types, (that is, are pluripotent). They are derived from the inner cell mass of the blastocyst. Embryonic stem cells are not embryos; by themselves, they cannot produce the necessary cell types, such as trophectoderm cells, in an organized fashion so as to give rise to a complete organism.

Embryonic Structure
The anatomical parts that make up an organism in the early stages of development.

Embryonic Structures
The anatomical parts that make up an organism in the early stages of development.

Embryos
The prenatal stage of mammalian development characterized by rapid morphological changes and the differentiation of basic structures.

Embryos, Non-Mammalian
The embryo of species other than mammals. For the chicken, use the specific CHICK EMBRYO.

Embryos, Nonmammalian
The embryo of species other than mammals. For the chicken, use the specific CHICK EMBRYO.

Embryos, Plant
The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield.

Embryoscope
Endoscopes for viewing the embryo, fetus and amniotic cavity.

Embryoscopes
Endoscopes for viewing the embryo, fetus and amniotic cavity.

Embryoscopic Surgeries
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryoscopic Surgery
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryoscopic Surgical Procedure
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryoscopic Surgical Procedures
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryoscopies
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryoscopy
Endoscopic examination, therapy or surgery of the fetus and amniotic cavity through abdominal or uterine entry.

Embryotomies
Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978)

Embryotomy
Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978)

Embryotoxins
An agent that causes the production of physical defects in the developing embryo.



PREVIOUS AND NEXT TERMS
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Embryonal Carcinoma Cells
Colony-forming cells which give rise to neoplasms.

Embryonal Carcinoma Cell
Colony-forming cells which give rise to neoplasms.

Embryonal Carcinoma
A highly malignant, primitive form of carcinoma, probably of germinal cell or teratomatous derivation, usually arising in a gonad and rarely in other sites. It is rare in the female ovary, but in the male it accounts for 20% of all testicular tumors. (From Dorland, 27th ed & Holland et al., Cancer Medicine, 3d ed, p1595)

Embryonal Cancer
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryonal Cancers
Neoplasms composed of primordial germ cells of embryonic gonads or of elements of the germ layers of the embryo. The concept does not refer to neoplasms located in the gonads or present in an embryo or fetus.

Embryology

Embryonic Structures
The anatomical parts that make up an organism in the early stages of development.

Embryonic Structure
The anatomical parts that make up an organism in the early stages of development.

Embryonic Organizer
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryonic Organizers
The regions within an embryo that control development and differentiation. In AMPHIBIA, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann.

Embryonic Inductions
Embryonic cell differentiation in which one group of cells evokes and controls the differentiation of other groups of cells.

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