|
| | |
Embryo
Embryo The early stages of development before an organism becomes self supporting.
RELATED TERMS--------------------------------------
Development
The process of growth and differentiation.
Organism
A living thing, such as an animal, a plant, a bacterium, or a fungus.
SIMILAR TERMS--------------------------------------
Embreeville Center
The Embreeville Center is a hospital in Coatesville, Pennsylvania, United States.
Embryo biopsy
An experimental test for genetic defects in embryos before they are implanted using IVF (in vitro 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.
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.
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.
Embryonic
Undeveloped, related to the embryo.
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 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.
PREVIOUS AND NEXT TERMS--------------------------------------
Endocytosis
The process by which extracellular molecules (including hormones) enter a cell.
Endothelial cells
The cells that line the vascular system. They act as a barrier between the bloodstream and target cells that hormones must pass through in order to reach their receptors and exert their biological action.
EPA
Eicosapentaenoic acid is a polyunsaturated essential fatty acid. OmegaRx fish oil contains 40 percent EPA. EPA enhances the production of "good" eicosanoids and inhibits the production of Arachidonic Acid (AA). The higher the level of EPA in the diet, the more your cells will be induced to produce more good "eicosanoids"; the high levels of EPA also hinder the production of "bad" eicosanoids. EPA promotes good physical well-being, including increased circulation, and promotes a healthy immune system. EPA is also a powerful anti-inflammatory.
Estrogens
A group of three steroid hormones that convey female characteristics and control fertilization. The production of estrogen is stimulated by follicle-stimulating hormone (FSH), which uses cyclic AMP as its second messenger.
Exocytosis
The process by which intracellular chemicals (including hormones) are released.
Embryo
Edema
Accumulation of abnormal quantities of fluid in spaces between the cells of the body. Edema can accumulate in almost any location in the body. Most common sites include the feet and ankles.
Erectile dysfunction
A man's consistent inability to achieve or maintain an erection during intercourse; commonly known as impotence.
Ependymoma
Ependymal tumors are tumors that begin in the ependyma, the cells that line the passageways in the brain where special fluid that protects the brain and spinal cord (called cerebrospinal fluid) is made and stored. There are different kinds of ependymal tumors, which are defined by how the cells look under a microscope.
Esophageal cancer
Esophageal cancer is cancer of the esophagus. The esophagus is a hollow tube that carries food and liquids from the throat to the stomach. When a person swallows, the muscular walls of the esophagus contract to push food down into the stomach. Glands in the lining of the esophagus produce mucus, which keeps the passageway moist and makes swallowing easier. The esophagus is located just behind the trachea (windpipe). In an adult, the esophagus is about 10 inches (25 cm) long.
Epilepsy
Sudden and recurrent disturbances in mental function, state of consciousness, sensory activity, or movements of the body, caused by paroxysmal malfunction of cerebral nerve cells. Epilepsy includes generalized convulsions in which there is sudden unconsciousness with falling and shaking of limbs, momentary lapses of awareness, and local movements and sensations in parts of the body, as well as other types of activity that may include bizarre automatic behaviour, strange memories, illusory and hallucinatory experiences, and changes in mood.
We thank you for using the Health Dictionary to search for Embryo. If you have a better definition for Embryo than the one presented here, please let us know by making use of the suggest a term option. This definition of Embryo may be disputed by other professionals. Our attempt is to provide easy definitions on Embryo and any other medical topic for the public at large.This dictionary contains 25007 terms. |
|
|
