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| This glossary contains: 19186 medical terms |
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Crossed embolism
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Crossed embolismPassage 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 crossparadoxically from the right to the left side of the heart, then pass into the arteries. 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 crossed embolism, it is usually recommended that even small atrial septal defects be closed (repaired).
RELATED TERMS--------------------------------------
Clot
A jelly-like mass of blood.
Vein
A blood vessel that carries blood from the body back into the heart.
Artery
A blood vessel that carries blood from the heart to the body.
Veins
Blood vessels that carry blood from the arms, legs, head and body organs back to the heart.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Lungs
The main respiratory organs in the chest where blood is oxygenated.
Circulation
The flow of blood through the body. Includes the heart, arteries, veins and capillaries.
Atrial
Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect.
Arteries
Blood vessels that carry blood away from the heart to the arms, legs, head, body and organs.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
Stroke
A stroke, or a Cerebrovascular Accident, occurs when blood vessels that deliver oxygen to the brain, either rupture or become clogged, causing brain/nerve cells to die. Results are usually devastating as nerve/brain cells are not replaced. Usually characterized by a slurring of words, weakness on one side of the body, and a drooping facial expression on one side of the face.
Risk
In clinical trials, the probability of harm or discomfort for subjects, arising from the test product. Acceptable risk differs depending on the condition for which a product is being tested. A product for sore throat, for example, will be expected to have a low incidence of side effects. However, unpleasant side effects may be an acceptable risk when testing a promising treatment for a life-threatening illness.
Embolism
The sudden blocking of an artery by a clot of material (embolus). The process of the formation of an embolus.
SIMILAR TERMS--------------------------------------
Cross bite
Reverse biting relationship of upper and lower teeth; aka "under bite," as in Class III malocclusuion (prognathic jaw).
Cross training
Doing two or more aerobic activities such as jogging, bicycling, and swimming on a regular basis.
Cross-reactivity
The ability of an antibody, specific for one antigen, to react with a second antigen; a measure of relatedness between two different antigenic substances.
Cross-section
In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section. By analogy, a study may be cross-sectional or longitudinal.
Cross-sectional study
A study done at one time, not over the course of time. A cross-sectional study might be of a disease such as AIDS at one point in time to learn its prevalence and distribution within the population. Also known as a synchronic study.
Crossing over
The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique.
Crossover study
A type of clinical trial in which the study subjects receive each treatment in a random order. With this type of study, every patient serves as his or her own control.
Crossover trial
In crossover trials, each subject receives both treatments being compared (often the test drug for one period and the placebo for another period). Such trials are used for patients who have a stable, usually chronic, condition during both treatment period.
Crossroads Regional Medical Center
The Crossroads Regional Medical Center is a hospital in Wentzville, Missouri, United States.
PREVIOUS AND NEXT TERMS--------------------------------------
Crohn ileitis
Inflammation of the ileum (the farthest segment of the small intestine) due to Crohn disease.
Crohn ileocolitis
Crohn disease involving the ileum (the lowest portion of the small intestine) and the colon (the large intestine).
Cross training
Doing two or more aerobic activities such as jogging, bicycling, and swimming on a regular basis.
Cross-section
In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section. By analogy, a study may be cross-sectional or longitudinal.
Cross-sectional study
A study done at one time, not over the course of time. A cross-sectional study might be of a disease such as AIDS at one point in time to learn its prevalence and distribution within the population. Also known as a synchronic study.
Crossed embolism
Crossing over
The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique.
Crossover study
A type of clinical trial in which the study subjects receive each treatment in a random order. With this type of study, every patient serves as his or her own control.
Crotch
A nonmedical term in common usage for the region where the legs come together, the place where the lower limbs divide.
CRP
C-reactive protein.
Cruciate
Cross-shaped. The cruciate ligaments are so-named because they cross each other. For example, there are cruciate ligaments that cross within the knee joint. These ligaments help provide stability and strength to the knee joint.
RELATED TERMS--------------------------------------
Clot
A jelly-like mass of blood.
Vein
A blood vessel that carries blood from the body back into the heart.
Artery
A blood vessel that carries blood from the heart to the body.
Veins
Blood vessels that carry blood from the arms, legs, head and body organs back to the heart.
Heart
The hollow, muscular organ responsible for pumping blood through the circulatory system.
Lungs
The main respiratory organs in the chest where blood is oxygenated.
Circulation
The flow of blood through the body. Includes the heart, arteries, veins and capillaries.
Atrial
Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect.
Arteries
Blood vessels that carry blood away from the heart to the arms, legs, head, body and organs.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
Stroke
A stroke, or a Cerebrovascular Accident, occurs when blood vessels that deliver oxygen to the brain, either rupture or become clogged, causing brain/nerve cells to die. Results are usually devastating as nerve/brain cells are not replaced. Usually characterized by a slurring of words, weakness on one side of the body, and a drooping facial expression on one side of the face.
Risk
In clinical trials, the probability of harm or discomfort for subjects, arising from the test product. Acceptable risk differs depending on the condition for which a product is being tested. A product for sore throat, for example, will be expected to have a low incidence of side effects. However, unpleasant side effects may be an acceptable risk when testing a promising treatment for a life-threatening illness.
Embolism
The sudden blocking of an artery by a clot of material (embolus). The process of the formation of an embolus.
SIMILAR TERMS--------------------------------------
Cross bite
Reverse biting relationship of upper and lower teeth; aka "under bite," as in Class III malocclusuion (prognathic jaw).
Cross training
Doing two or more aerobic activities such as jogging, bicycling, and swimming on a regular basis.
Cross-reactivity
The ability of an antibody, specific for one antigen, to react with a second antigen; a measure of relatedness between two different antigenic substances.
Cross-section
In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section. By analogy, a study may be cross-sectional or longitudinal.
Cross-sectional study
A study done at one time, not over the course of time. A cross-sectional study might be of a disease such as AIDS at one point in time to learn its prevalence and distribution within the population. Also known as a synchronic study.
Crossing over
The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique.
Crossover study
A type of clinical trial in which the study subjects receive each treatment in a random order. With this type of study, every patient serves as his or her own control.
Crossover trial
In crossover trials, each subject receives both treatments being compared (often the test drug for one period and the placebo for another period). Such trials are used for patients who have a stable, usually chronic, condition during both treatment period.
Crossroads Regional Medical Center
The Crossroads Regional Medical Center is a hospital in Wentzville, Missouri, United States.
PREVIOUS AND NEXT TERMS--------------------------------------
Crohn ileitis
Inflammation of the ileum (the farthest segment of the small intestine) due to Crohn disease.
Crohn ileocolitis
Crohn disease involving the ileum (the lowest portion of the small intestine) and the colon (the large intestine).
Cross training
Doing two or more aerobic activities such as jogging, bicycling, and swimming on a regular basis.
Cross-section
In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section. By analogy, a study may be cross-sectional or longitudinal.
Cross-sectional study
A study done at one time, not over the course of time. A cross-sectional study might be of a disease such as AIDS at one point in time to learn its prevalence and distribution within the population. Also known as a synchronic study.
Crossed embolism
Crossing over
The exchange of genetic material between two paired chromosomes. Crossing over is a way to recombine the genetic material so that each person (except for identical twins) is genetically unique.
Crossover study
A type of clinical trial in which the study subjects receive each treatment in a random order. With this type of study, every patient serves as his or her own control.
Crotch
A nonmedical term in common usage for the region where the legs come together, the place where the lower limbs divide.
CRP
C-reactive protein.
Cruciate
Cross-shaped. The cruciate ligaments are so-named because they cross each other. For example, there are cruciate ligaments that cross within the knee joint. These ligaments help provide stability and strength to the knee joint.
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This dictionary contains 19186 terms.
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