|
 |
||
 |
| This glossary contains: 19186 medical terms |
 |
Embryonic hemoglobin
|
|
Embryonic hemoglobinHemoglobin 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).
RELATED TERMS--------------------------------------
Hemoglobin
Hemoglobin is a substance contained within the red blood cells and is responsible for their color. It has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. It takes up oxygen as blood passes through the lungs and releases it as blood passes through the tissues.
Embryonic
Undeveloped, related to the embryo.
Embryo
The early stages of development before an organism becomes self supporting.
SIMILAR TERMS--------------------------------------
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 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 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--------------------------------------
Emboli
Something that travels through the bloodstream, lodges in a blood vessel and blocks it. Examples of emboli are a detached blood clot, a clump of bacteria, and foreign material such as air. Pulmonary emboli are blood clots that have been carried through the blood into the pulmonary artery (the main blood vessel from the heart to the lung) or one of its branches, plugging that vessel.
Embolism, paradoxical
Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel first to the right side of the heart and, normally, then to the lungs where they lodge. The lungs act as a filter to prevent the clots from entering the arterial circulation. However, when there is a hole in the wall between the two upper chambers of the heart (an atrial septal defect), a clot can cross from the right to the left side of the heart, then pass into the arteries as a paradoxical embolism. Once in the arterial circulation, a clot can travel to the brain, block a vessel there, and cause a stroke (cerebrovascular accident). Because of the risk of stroke from paradoxical embolism, it is usually recommended that even small atrial septal defects be repaired. Also called crossed embolism.
Embolism, pulmonary
The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood clot, usually from the leg, or foreign material causing sudden closure of the vessel. (Embolus is from the Greek "embolos" meaning plug.) The risk factors for pulmonary embolism include advanced age, cancer, genetic predisposition, immobilization (especially in the hospital), pelvic or leg trauma, pregnancy, and surgery. The diagnosis of pulmonary embolism can be difficult because the symptoms are nonspecific and may mimic many other diseases. Pulmonary angiography is the gold standard test. Other tests may include oximetry and arterial blood gas analysis and imaging such as chest x-rays and ultrasonography. The treatment includes anticoagulants such as heparin and warfarin (Coumadin). About 10- 15% of patients with pulmonary embolism die.
Embolization
A treatment that clogs small blood vessels and blocks the flow of blood, such as to a tumor.
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 hemoglobin
Emergency contraception
The prevention of pregnancy after unprotected vaginal intercourse. Emergency contraception may use drugs related to the female hormones estrogen and progesterone. These "morning-after pill" are similar to birth control pills but generally contain higher hormone doses. Another form of emergency contraception uses an intrauterine device (IUD) inserted by a physician within 5 days after intercourse. Emergency contraception is also known as emergency birth control; emergency postcoital contraception; and postcoital contraception.
Emergency department
The department of a hospital responsible for the provision of medical and surgical care to patients arriving at the hospital in need of immediate care. Emergency department personnel may also respond to certain situations within the hospital such cardiac arrests. The emergency department is also called the emergency room or ER.
Emergency medical technician
A person trained in the performance of the procedures required in emergency medical care. You are most likely to find an EMT working with a mobile emergency response team, such as an ambulance or fire and rescue team. Some EMTs are employed in emergency rooms, or are hired to be present at sporting events, camps, or other locations where emergency response might be needed.
Emergency physician
A physician focused on the immediate decision making and action necessary to prevent death or any further disability both in the prehospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization, and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Emerging infectious disease
An infectious disease that has newly appeared in a population or that has been known for some time but is rapidly increasing in incidence or geographic range.
RELATED TERMS--------------------------------------
Hemoglobin
Hemoglobin is a substance contained within the red blood cells and is responsible for their color. It has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. It takes up oxygen as blood passes through the lungs and releases it as blood passes through the tissues.
Embryonic
Undeveloped, related to the embryo.
Embryo
The early stages of development before an organism becomes self supporting.
SIMILAR TERMS--------------------------------------
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 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 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--------------------------------------
Emboli
Something that travels through the bloodstream, lodges in a blood vessel and blocks it. Examples of emboli are a detached blood clot, a clump of bacteria, and foreign material such as air. Pulmonary emboli are blood clots that have been carried through the blood into the pulmonary artery (the main blood vessel from the heart to the lung) or one of its branches, plugging that vessel.
Embolism, paradoxical
Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel first to the right side of the heart and, normally, then to the lungs where they lodge. The lungs act as a filter to prevent the clots from entering the arterial circulation. However, when there is a hole in the wall between the two upper chambers of the heart (an atrial septal defect), a clot can cross from the right to the left side of the heart, then pass into the arteries as a paradoxical embolism. Once in the arterial circulation, a clot can travel to the brain, block a vessel there, and cause a stroke (cerebrovascular accident). Because of the risk of stroke from paradoxical embolism, it is usually recommended that even small atrial septal defects be repaired. Also called crossed embolism.
Embolism, pulmonary
The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood clot, usually from the leg, or foreign material causing sudden closure of the vessel. (Embolus is from the Greek "embolos" meaning plug.) The risk factors for pulmonary embolism include advanced age, cancer, genetic predisposition, immobilization (especially in the hospital), pelvic or leg trauma, pregnancy, and surgery. The diagnosis of pulmonary embolism can be difficult because the symptoms are nonspecific and may mimic many other diseases. Pulmonary angiography is the gold standard test. Other tests may include oximetry and arterial blood gas analysis and imaging such as chest x-rays and ultrasonography. The treatment includes anticoagulants such as heparin and warfarin (Coumadin). About 10- 15% of patients with pulmonary embolism die.
Embolization
A treatment that clogs small blood vessels and blocks the flow of blood, such as to a tumor.
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 hemoglobin
Emergency contraception
The prevention of pregnancy after unprotected vaginal intercourse. Emergency contraception may use drugs related to the female hormones estrogen and progesterone. These "morning-after pill" are similar to birth control pills but generally contain higher hormone doses. Another form of emergency contraception uses an intrauterine device (IUD) inserted by a physician within 5 days after intercourse. Emergency contraception is also known as emergency birth control; emergency postcoital contraception; and postcoital contraception.
Emergency department
The department of a hospital responsible for the provision of medical and surgical care to patients arriving at the hospital in need of immediate care. Emergency department personnel may also respond to certain situations within the hospital such cardiac arrests. The emergency department is also called the emergency room or ER.
Emergency medical technician
A person trained in the performance of the procedures required in emergency medical care. You are most likely to find an EMT working with a mobile emergency response team, such as an ambulance or fire and rescue team. Some EMTs are employed in emergency rooms, or are hired to be present at sporting events, camps, or other locations where emergency response might be needed.
Emergency physician
A physician focused on the immediate decision making and action necessary to prevent death or any further disability both in the prehospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization, and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Emerging infectious disease
An infectious disease that has newly appeared in a population or that has been known for some time but is rapidly increasing in incidence or geographic range.
We thank you for using the Medical Glossary to search for Embryonic hemoglobin. If you have a better definition for Embryonic hemoglobin than the one presented here, please let us know by making use of the suggest a term option. This definition of Embryonic hemoglobin may be disputed by other professionals. Our attempt is to provide easy definitions on Embryonic hemoglobin and any other medical topic for the public at large.
This dictionary contains 19186 terms.
|
|