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| This glossary contains: 19186 medical terms |
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Ectopic
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EctopicOut of place. An ectopic heart beat originates in an abnormal location of the heart.
RELATED TERMS--------------------------------------
Ectopic
Out of place. An ectopic heart beat originates in an abnormal location of the heart.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Abnormal
Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth, abnormal may mean that it is cancerous or premalignant (likely to become cancer).
SIMILAR TERMS--------------------------------------
Ectoderm
One of the three primary germ cell layers (the other two being the mesoderm and endoderm) that make up the very early embryo. The ectoderm is the outermost of the three layers. It differentiates to give rise to many important tissues and structures including the outer layer of the skin and its appendages (the sweat glands, hair, and nails), the teeth, the lens of the eye, parts of the inner ear, the nerves, brain, and spinal cord. This much is classic human embryology. Stem cell research, however, has shown that some cells within ectodermal structures retain their ability to differentiate into other tissues. For example, some cells in brain (ectoderm) can become bone marrow (mesoderm).
Ectodermal
Pertaining to the ectoderm or to tissues derived from the ectoderm, one of the three primary germ cell layers that make up the very early embryo. The ectoderm is the outermost of the three layers.
Ectodermal dysplasia
A genetic disorder in which there is abnormal development of the skin and associated structures (the hair, nails, teeth, and sweat glands). The most dangerous problem occurs in cases with decreased sweating due to absence of the sweat glands. Affected persons have trouble controlling fevers and being in a warm environment. The hair may also be absent or sparse. The skin tends to be thin and light in color. Problems with the lining inside the nose predispose to chronic nasal infections. The teeth may be notably absent or develop abnormally. There are a number of different types of ectodermal dysplasia. X-linked anhidrotic (non-sweating) ectodermal dysplasia is most common. As an X-linked trait, it mainly affects males. There is also an autosomal dominant form affecting males and females alike. The term "ectodermal dysplasia" refers to the abnormal development (dysplasia) of structures derived from the ectoderm, one of the germ cell layers in the embryo.
Ectomy
A surgical suffix referring to the removal of something. For example, a lumpectomy is the surgical excision of a lump which may be benign or not, tonsillectomy is the removal of the tonsils, a partial colectomy is removal of part of the colon, an appendectomy is removal of the appendix, etc.
Ectoparasite
A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites. Infestation with an ectoparasite is called an ectoparasitosis.
Ectoparasitosis
Infestation with an ectoparasite, a parasite that lives on or in the skin. The four major ectoparasitoses are pediculosis, scabies, cutaneous larva migrans and tungiasis (sand-flea disease).
Ectopia cordis
A type of birth defect in the heart is abnormally located. In ectopia cordis, the heart usually protrudes outside the chest.
Ectopic pregnancy
Pregnancy that develops outside the uterus, usually in one of the fallopian tubes.
PREVIOUS AND NEXT TERMS--------------------------------------
Endocrine Glands
Glands that release hormones into the bloodstream. They affect how the body uses food (metabolism). They also influence other body functions. One endocrine gland is the pancreas. It releases insulin so the body can use sugar for energy.
End-Stage Renal Disease (ESRD)
The final phase of kidney disease; treated by dialysis or kidney transplantation.
Euglycemia
A normal level of glucose (sugar) in the blood. |Compare to hyperglycemia and hypoglycemia.
Exchange Lists
A grouping of foods by type to help people on special diets stay on the diet. Each group lists food in serving sizes. A person can exchange, trade, or substitute a food serving in one group for another food serving in the same group. The lists put foods in six groups:
ECMO
Extra Corporeal Membrane Oxygenation. In patients who are unable to provide oxygen for their own blood or enough blood circulation, they can be put on life support known as extra corporial membrane oxygenation. The blood is withdrawn from a large vein in the body and passes through a pumping mechanism, and then through a device which puts oxygen into the blood and removes carbon dioxide from the blood. The blood is then returned to the body and circulated in such a way as to sustain life.
Ectopic
Ejection Fraction (EF)
The amount of blood pumped out of a ventricle during each heart beat. The ejection fraction evaluates how well the heart is pumping; Normally 50 - 70 percent.
Electrocardiogram (EKG or ECG)
A test that records on graph paper the electrical activity of the heart via small electrode patches attached to the skin. An EKG helps a physician determine the causes of abnormal heartbeat or detect heart damage.
Electrolyte
One of the substances in the blood that helps to regulate the proper balance of body fluids. Examples of electrolytes include sodium and potassium.
Electrophysiology (EP) Study
An EP Study is a recording of the electrical activity your heart. This test is used to help your doctor find out the cause of your rhythm disturbance and the best treatment for you. During the test, your doctor may safely reproduce your arrhythmia, then give you medications to see which one controls it best.
Endocarditis (SBE)
An infection of the inner lining of the heart or its valves. It is usually caused by bacteria and is more likely to occur in people who have heart valve defects or have had heart surgery to treat valve disease.
RELATED TERMS--------------------------------------
Ectopic
Out of place. An ectopic heart beat originates in an abnormal location of the heart.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Abnormal
Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth, abnormal may mean that it is cancerous or premalignant (likely to become cancer).
SIMILAR TERMS--------------------------------------
Ectoderm
One of the three primary germ cell layers (the other two being the mesoderm and endoderm) that make up the very early embryo. The ectoderm is the outermost of the three layers. It differentiates to give rise to many important tissues and structures including the outer layer of the skin and its appendages (the sweat glands, hair, and nails), the teeth, the lens of the eye, parts of the inner ear, the nerves, brain, and spinal cord. This much is classic human embryology. Stem cell research, however, has shown that some cells within ectodermal structures retain their ability to differentiate into other tissues. For example, some cells in brain (ectoderm) can become bone marrow (mesoderm).
Ectodermal
Pertaining to the ectoderm or to tissues derived from the ectoderm, one of the three primary germ cell layers that make up the very early embryo. The ectoderm is the outermost of the three layers.
Ectodermal dysplasia
A genetic disorder in which there is abnormal development of the skin and associated structures (the hair, nails, teeth, and sweat glands). The most dangerous problem occurs in cases with decreased sweating due to absence of the sweat glands. Affected persons have trouble controlling fevers and being in a warm environment. The hair may also be absent or sparse. The skin tends to be thin and light in color. Problems with the lining inside the nose predispose to chronic nasal infections. The teeth may be notably absent or develop abnormally. There are a number of different types of ectodermal dysplasia. X-linked anhidrotic (non-sweating) ectodermal dysplasia is most common. As an X-linked trait, it mainly affects males. There is also an autosomal dominant form affecting males and females alike. The term "ectodermal dysplasia" refers to the abnormal development (dysplasia) of structures derived from the ectoderm, one of the germ cell layers in the embryo.
Ectomy
A surgical suffix referring to the removal of something. For example, a lumpectomy is the surgical excision of a lump which may be benign or not, tonsillectomy is the removal of the tonsils, a partial colectomy is removal of part of the colon, an appendectomy is removal of the appendix, etc.
Ectoparasite
A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites. Infestation with an ectoparasite is called an ectoparasitosis.
Ectoparasitosis
Infestation with an ectoparasite, a parasite that lives on or in the skin. The four major ectoparasitoses are pediculosis, scabies, cutaneous larva migrans and tungiasis (sand-flea disease).
Ectopia cordis
A type of birth defect in the heart is abnormally located. In ectopia cordis, the heart usually protrudes outside the chest.
Ectopic pregnancy
Pregnancy that develops outside the uterus, usually in one of the fallopian tubes.
PREVIOUS AND NEXT TERMS--------------------------------------
Endocrine Glands
Glands that release hormones into the bloodstream. They affect how the body uses food (metabolism). They also influence other body functions. One endocrine gland is the pancreas. It releases insulin so the body can use sugar for energy.
End-Stage Renal Disease (ESRD)
The final phase of kidney disease; treated by dialysis or kidney transplantation.
Euglycemia
A normal level of glucose (sugar) in the blood. |Compare to hyperglycemia and hypoglycemia.
Exchange Lists
A grouping of foods by type to help people on special diets stay on the diet. Each group lists food in serving sizes. A person can exchange, trade, or substitute a food serving in one group for another food serving in the same group. The lists put foods in six groups:
ECMO
Extra Corporeal Membrane Oxygenation. In patients who are unable to provide oxygen for their own blood or enough blood circulation, they can be put on life support known as extra corporial membrane oxygenation. The blood is withdrawn from a large vein in the body and passes through a pumping mechanism, and then through a device which puts oxygen into the blood and removes carbon dioxide from the blood. The blood is then returned to the body and circulated in such a way as to sustain life.
Ectopic
Ejection Fraction (EF)
The amount of blood pumped out of a ventricle during each heart beat. The ejection fraction evaluates how well the heart is pumping; Normally 50 - 70 percent.
Electrocardiogram (EKG or ECG)
A test that records on graph paper the electrical activity of the heart via small electrode patches attached to the skin. An EKG helps a physician determine the causes of abnormal heartbeat or detect heart damage.
Electrolyte
One of the substances in the blood that helps to regulate the proper balance of body fluids. Examples of electrolytes include sodium and potassium.
Electrophysiology (EP) Study
An EP Study is a recording of the electrical activity your heart. This test is used to help your doctor find out the cause of your rhythm disturbance and the best treatment for you. During the test, your doctor may safely reproduce your arrhythmia, then give you medications to see which one controls it best.
Endocarditis (SBE)
An infection of the inner lining of the heart or its valves. It is usually caused by bacteria and is more likely to occur in people who have heart valve defects or have had heart surgery to treat valve disease.
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This dictionary contains 19186 terms.
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