Medical Equipment Glossary

Dissection is the process or disassembling and observing something to determine its internal structure.  In medical pathology, dissection refers to a tear in the wall of a blood vessel. The term also applies to the separation of the layers of arterial tissue in the aorta as a result of blood being forced out into the wall of the aorta through a tear in the innermost layer of tissue. See also: tissue dissection.