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| This glossary contains: 19186 medical terms |
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Extrapyramidal system
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Extrapyramidal system System consisting of nerve cells, nerve tracts and pathways that connects the cerebral cortex, basal ganglia, thalamus, cerebellum, reticular formation, and spinal neurons that is concerned with the regulation of reflex movements such as balance and walking.
RELATED TERMS--------------------------------------
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
Cerebral
Referring to the cerebrum.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
Ganglia
Clusters of cell bodies of neurons outside of the central nervous system.
Cerebellum
A large structure consisting of two halves (hemispheres) located in the lower part of the brain; responsible for the coordination of movement and balance.
Reflex
An automatic, involuntary movement.
Balance
A biological system that enables us to know where our bodies are in the environment and to maintain a desired position. Normal balance depends on information from the inner ear, other senses (such as sight and touch) and muscle movement.
SIMILAR TERMS--------------------------------------
Extra-strength aim
Extra-strength aim is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): sodium monofluorophosphate.
Extracellular
Outside the cells.
Extracerebral
Located outside the cerebral hemispheres.
Extracolonic
Outside the colon. An hereditary colon cancer syndrome may also predispose to extracolonic malignancies.
Extracorporeal
Outside the body, in the anatomic sense. As in extracorporeal circulation, extracorporeal dialysis, and extracorporeal shock wave lithotripsy.
Extracorporeal membrane oxygenation
(ECMO) A life support system that circulates the blood through an oxygenating system. ECMO is like a heart-lung machine that takes over the work of the heart and lungs during open heart surgery. ECMO may be used, for example, to treat ARDS (acute respiratory distress syndrome), lethal smoke inhalation injury, or irreversible heart failure. As a general rule, ECMO is only used for limited time because of the high risks of bleeding, clotting, infection and organ failure.
Extracorporeal shock wave lithotripsy
A technique for shattering stones such as kidney stones or gallstones with a shock wave produced outside the body.
Extracorporeal shock wave lithotripsy (ESWL)
A method of breaking up bile stones and gallstones. Uses a specialized tool and shock waves.
Extracranial
Outside the cranium, the bony dome that houses and protects the brain. As opposed to intracranial, inside the cranium.
Extracranial hematoma
A hematoma (a collection of blood) outside the cranium (skull).
Extraction
Removal of a tooth
Extradural
External (outside) to the dura mater.
Extraembryonic tissues
Intrauterine tissues derived from the zygote that support the embryo(for example, the placenta, the umbilical cord, and membranes such as the amniotic sac).
Extrafallopian
A term meaning "outside the fallopian tube." There are two fallopian tubes in female mammals, including human females. These tubes are also called oviducts. They serve as passageways connecting the egg-producing ovaries to the uterus (womb) in the pelvis.
Extraneal
Extraneal is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): icodextrin.
Extraocular
Adjacent to but outside the eyeball.
Extrapyramidal side effects
Physical symptoms, including tremor, slurred speech, akathesia, dystonia, anxiety, distress, paranoia, and bradyphrenia, that are primarily associated with improper dosing of or unusual reactions to neuroleptic (anti-psychotic) medications.
Extrastriate cortex
Region of primate cerebral cortex anterior to striate cortex.
Extrasystole
A premature contraction of the heart that is independent of the normal rhythm of the heart and that arises in response to an impulse in some part of the heart other than the normal impulse from the sinoatrial (SA) node. The extrasystole is followed by a pause, as the heart electrical system "resets" itself and the contraction following the pause is usually more forceful than normal. These more forceful contractions are frequently perceived as palpitations.
Extrauterine
Outside the uterus (the womb). As opposed to intrauterine: inside the uterus. For example, normal pregnancies are intrauterine; extrauterine pregnancies can occur in the uterine tube or abdominal cavity and are distinctly abnormal.
Extrauterine pregnancy
A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A fertilized egg settles and grows in any location other than the inner lining of the uterus. The large majority (95%) of extrauterine pregnancies occur in the Fallopian tube. However, they can occur in other locations, such as the ovary, cervix, and abdominal cavity.
Extravasate
To seep through the skin, like drops of perspiration, or more accurately as plasma seeps through from the underlying capillaries to form droplets of lubrication on the adjoining vaginal mucosa.
Extraversion
A state in which attention and energies are largely directed outward from the self as opposed to inward toward the self, as in introversion.
Extremity
The extremities in medical language are not freezing cold or scorching heat but rather the uttermost parts of the body. The extremities are simply the hands and feet.
Extremophile
An organism that lives under extreme conditions. An example of an extremophile is Methanococcus jannaschii, a microbe that lives near hydrothermal vents deep beneath the sea.
Extrinsic
1. Not an essential or inherent part of a something such as a structure. 2. Coming from the outside. Extrinsic forces can mold the head before birth.
Extrinsic asthma
Asthma that is triggered by an allergic reaction, usually to something that is inhaled.
PREVIOUS AND NEXT TERMS--------------------------------------
Ecstasy
Ecstasy, or MDMA (methylenedioxymethamphetamine), is a synthetic drug that acts simultaneously as a stimulant and a hallucinogen. Users sometimes take Ecstasy for the sense of well-being, the sensory distortions caused by the drug, or to stay awake. Ecstasy has been shown to cause brain damage in animals.
Embolus
A "wandering" blood clot.
Encephalitis
A viral infection of the brain.
Euphoria
Euphoria represents a feeling of well-being or elation; may be drug related. The opposite of euphoria is known as dysphoria.
Extensor muscle
Any muscle that causes the straightening of a limb or other part.
Extrapyramidal system
Enamel
Hard tissue covering the portion of tooth above the gum line.
Endodontist
Specialist who treats injuries, diseases and infections of the tooth pulp (nerve chamber).
Epidemiology
Study of the incidence of disease in a population.
Eruption
Process of teeth protruding through the gums
Exfoliate
Process of shedding deciduous (baby) teeth.
RELATED TERMS--------------------------------------
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
Cerebral
Referring to the cerebrum.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
Ganglia
Clusters of cell bodies of neurons outside of the central nervous system.
Cerebellum
A large structure consisting of two halves (hemispheres) located in the lower part of the brain; responsible for the coordination of movement and balance.
Reflex
An automatic, involuntary movement.
Balance
A biological system that enables us to know where our bodies are in the environment and to maintain a desired position. Normal balance depends on information from the inner ear, other senses (such as sight and touch) and muscle movement.
SIMILAR TERMS--------------------------------------
Extra-strength aim
Extra-strength aim is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): sodium monofluorophosphate.
Extracellular
Outside the cells.
Extracerebral
Located outside the cerebral hemispheres.
Extracolonic
Outside the colon. An hereditary colon cancer syndrome may also predispose to extracolonic malignancies.
Extracorporeal
Outside the body, in the anatomic sense. As in extracorporeal circulation, extracorporeal dialysis, and extracorporeal shock wave lithotripsy.
Extracorporeal membrane oxygenation
(ECMO) A life support system that circulates the blood through an oxygenating system. ECMO is like a heart-lung machine that takes over the work of the heart and lungs during open heart surgery. ECMO may be used, for example, to treat ARDS (acute respiratory distress syndrome), lethal smoke inhalation injury, or irreversible heart failure. As a general rule, ECMO is only used for limited time because of the high risks of bleeding, clotting, infection and organ failure.
Extracorporeal shock wave lithotripsy
A technique for shattering stones such as kidney stones or gallstones with a shock wave produced outside the body.
Extracorporeal shock wave lithotripsy (ESWL)
A method of breaking up bile stones and gallstones. Uses a specialized tool and shock waves.
Extracranial
Outside the cranium, the bony dome that houses and protects the brain. As opposed to intracranial, inside the cranium.
Extracranial hematoma
A hematoma (a collection of blood) outside the cranium (skull).
Extraction
Removal of a tooth
Extradural
External (outside) to the dura mater.
Extraembryonic tissues
Intrauterine tissues derived from the zygote that support the embryo(for example, the placenta, the umbilical cord, and membranes such as the amniotic sac).
Extrafallopian
A term meaning "outside the fallopian tube." There are two fallopian tubes in female mammals, including human females. These tubes are also called oviducts. They serve as passageways connecting the egg-producing ovaries to the uterus (womb) in the pelvis.
Extraneal
Extraneal is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): icodextrin.
Extraocular
Adjacent to but outside the eyeball.
Extrapyramidal side effects
Physical symptoms, including tremor, slurred speech, akathesia, dystonia, anxiety, distress, paranoia, and bradyphrenia, that are primarily associated with improper dosing of or unusual reactions to neuroleptic (anti-psychotic) medications.
Extrastriate cortex
Region of primate cerebral cortex anterior to striate cortex.
Extrasystole
A premature contraction of the heart that is independent of the normal rhythm of the heart and that arises in response to an impulse in some part of the heart other than the normal impulse from the sinoatrial (SA) node. The extrasystole is followed by a pause, as the heart electrical system "resets" itself and the contraction following the pause is usually more forceful than normal. These more forceful contractions are frequently perceived as palpitations.
Extrauterine
Outside the uterus (the womb). As opposed to intrauterine: inside the uterus. For example, normal pregnancies are intrauterine; extrauterine pregnancies can occur in the uterine tube or abdominal cavity and are distinctly abnormal.
Extrauterine pregnancy
A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A fertilized egg settles and grows in any location other than the inner lining of the uterus. The large majority (95%) of extrauterine pregnancies occur in the Fallopian tube. However, they can occur in other locations, such as the ovary, cervix, and abdominal cavity.
Extravasate
To seep through the skin, like drops of perspiration, or more accurately as plasma seeps through from the underlying capillaries to form droplets of lubrication on the adjoining vaginal mucosa.
Extraversion
A state in which attention and energies are largely directed outward from the self as opposed to inward toward the self, as in introversion.
Extremity
The extremities in medical language are not freezing cold or scorching heat but rather the uttermost parts of the body. The extremities are simply the hands and feet.
Extremophile
An organism that lives under extreme conditions. An example of an extremophile is Methanococcus jannaschii, a microbe that lives near hydrothermal vents deep beneath the sea.
Extrinsic
1. Not an essential or inherent part of a something such as a structure. 2. Coming from the outside. Extrinsic forces can mold the head before birth.
Extrinsic asthma
Asthma that is triggered by an allergic reaction, usually to something that is inhaled.
PREVIOUS AND NEXT TERMS--------------------------------------
Ecstasy
Ecstasy, or MDMA (methylenedioxymethamphetamine), is a synthetic drug that acts simultaneously as a stimulant and a hallucinogen. Users sometimes take Ecstasy for the sense of well-being, the sensory distortions caused by the drug, or to stay awake. Ecstasy has been shown to cause brain damage in animals.
Embolus
A "wandering" blood clot.
Encephalitis
A viral infection of the brain.
Euphoria
Euphoria represents a feeling of well-being or elation; may be drug related. The opposite of euphoria is known as dysphoria.
Extensor muscle
Any muscle that causes the straightening of a limb or other part.
Extrapyramidal system
Enamel
Hard tissue covering the portion of tooth above the gum line.
Endodontist
Specialist who treats injuries, diseases and infections of the tooth pulp (nerve chamber).
Epidemiology
Study of the incidence of disease in a population.
Eruption
Process of teeth protruding through the gums
Exfoliate
Process of shedding deciduous (baby) teeth.
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This dictionary contains 19186 terms.
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