Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «E»:
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Effects, fetal rubella
Effects, fetal rubella: The constellation of abnormalities, also called the rubella syndrome, caused by infection with the
rubella (German measles) A
virus before birth.
The syndrome is characterized by multiple congenital malformations (birth defects) and mental retardation.
The individual feat...
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Efferent
Efferent: Carrying away. An artery is an efferent
vessel carrying blood away from the heart. An efferent nerve carries impulses away from the central nervous system. The opposite of efferent is afferent....
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Efferent nerve
Efferent nerve: A nerve that carries impulses away from the central nervous system (CNS). An efferent nerve is the opposite of an afferent nerves that carries impulses toward the CNS....
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Efferent vessel
Efferent vessel: A vessel
carrying blood
away from the heart. An artery or arteriole....
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Effusion
Effusion: Too much fluid, an outpouring of
fluid. A hemorrhagic effusion is
one that has blood within the fluid. A pericardial effusion
is an outpouring
of fluid within the fibrous sac (the pericardium) that
surrounds the heart.
The lungs are covered by two-layered membranes which are
called th...
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Effusion, pericardial
Effusion, pericardial: See: Pericardial effusion....
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Effusion, pleural
Effusion, pleural: See: Pleural effusion....
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EGD
EGD: Esophagogastroduodenoscopy....
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EGF
EGF: Epidermal growth factor. A polypeptide (small protein) that is a powerful mitogen. (It stimulates cells to enter mitosis, cell division. ) EGF promotes cell growth and differentiation, is essential in embryogenesis, and is important in wound healing. It is produced by many normal cell types an...
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EGFR
EGFR: Epidermal growth factor receptor. A protein found on the surface of cells to which epidermal growth factor (EGF) binds. When EGF attaches to EGFR, it activates the enzyme tyrosine kinase, triggering reactions that cause the cells to grow and multiply. EGFR is found at abnormally high levels o...
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Egg
Egg: Ovum (plural: ova). ...
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Egg donor
Egg donor: A woman who provides her own eggs for another woman or couple to
use in creating a pregnancy through in vitro fertilization. Egg donors may be
paid for their services, and both known and anonymous egg donors may be used in
the IVF process. For a woman to serve as an egg donor, she must...
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Egg sac
Egg sac: The "egg sac" or ovary is one of a pair of reproductive glands in women. They are located in the pelvis, one on each side of the uterus. Each ovary is about the size and shape of an almond. The ovaries have two functions: production of eggs (ova) and female hormones.
Each month, during the ...
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Ehlers-Danlos syndrome
Ehlers-Danlos syndrome: A heritable disorder of connective tissue with easy bruising, joint hypermobility
(loose joints), skin laxity, and weakness of tissues. There are a number of different types of Ehlers-Danlos syndrome (EDS)
which share the foregoing features but can be categorized into at le...
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Ehlers-Danlos syndrome type VIIC
Ehlers-Danlos syndrome type VIIC: See: Ehlers-Danlos syndrome, dermatosparaxis type....
