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| This glossary contains: 19186 medical terms |
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Cross-sectional study
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Cross-sectional studyA 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.
RELATED TERMS--------------------------------------
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
AIDS
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.
Prevalence
Statistic that equals the total number of people in a population with a certain disease at a given time.
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.
Crossed embolism
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 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).
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 colitis
Crohn disease involving only the large intestine (colon). Crohn disease is a chronic inflammatory disorder, primarily involving the small and large intestine, but which can affect other parts of the digestive system as well.
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
Crossed embolism
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 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).
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.
RELATED TERMS--------------------------------------
Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.
AIDS
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.
Prevalence
Statistic that equals the total number of people in a population with a certain disease at a given time.
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.
Crossed embolism
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 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).
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 colitis
Crohn disease involving only the large intestine (colon). Crohn disease is a chronic inflammatory disorder, primarily involving the small and large intestine, but which can affect other parts of the digestive system as well.
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
Crossed embolism
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 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).
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.
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This dictionary contains 19186 terms.
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