Disruption sequence
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.
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- Dissect
Dissect: To cut apart or separate tissue, as for anatomical study or in surgery. Also, an artery is said to dissect when its wall is torn, as in a dissecting aneurysm.
- Dissecting aneurysm
Dissecting aneurysm: An aneurysm in which the wall of an artery rips (dissects) longitudinally. This occurs because bleeding into the weakened wall splits the wall. Dissecting aneurysms tend to affect the thoracic aorta. They are a particular danger in Marfan syndrome.
- Dissection
Dissection: The process of cutting apart or separating tissue as, for example, in the study of anatomy or in the course of a surgical procedure.
- Dissection, axillary
Dissection, axillary: Surgery in which the axilla (the armpit) is opened — to “dissect” means to “cut apart” — in order to identify, examine, and sometimes remove structures such as lymph nodes or other tissue for diagnosis or treatment.
- Dissection, neck
Dissection, neck: Surgery in which the neck is opened — to “dissect” means to “cut apart” — in order to identify, examine, and sometimes remove structures such as lymph nodes or other tissue for diagnosis or treatment. A radical neck dissection involves removal of a tumor from the neck with an additional margin of apparently […]