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Intro to Pathology
Terms in this set (44)
Are measurable or objective manifestations of the disease process
Are the experiences a patient feels and describes - these are subjective and not measurable
describes a patient that has no evidence either signs or symptoms of the disease
Symptoms caused by a physician or treatment
Underlying cause of the disease
After the disease is diagnosed the prognosis describes the expected patient outcome
When the underlying cause of disease is unknown
Signs, symptoms and disease processes that can be grouped together and categorized.
Infections acquired while in a health care facility
white blood cells cross the capillary walls into the injured tissues where they engulf and digest infecting organisms
initial response of the body tissues to local injury. It consists of four overlapping events that occur sequentially
leads to the production of a thick, yellow fluid called pus.
When a pyogenic infection occurs beneath the skin or in a solid organ it produces a
a pyogen enters the blood cells it can produce what?
the accumulation of abnormal amounts of fluid in the intercellular tissue spaces or body cavities.
efers to the interference with the blood supply to an organ or part of an organ.
a localized area of ischemic necrosis within a tissue or organ produced by occlusion of either its arterial supply or venous drainage.
efers to the rupture of a blood vessel.
refers to a reduction in the size or number of cells in an organ or tissue, with corresponding loss of function.
refers to an increased in size of the cells of a tissue or organ in response to a demand for increased function.
an increase in the number of cells in a tissue or organ.
the loss in the uniformity of individual cells and their architectural orientation.
two basic components of tumors
The parenchyma (organ tissue) is made up of proliferating neoplastic cells.
The supporting stroma (supporting tissue) is made up of connective tissue, blood vessels, and possibly lymphatic vessels.
Undifferentiated or anaplastic tumors
refers to the abnormal proliferation of cells that are not longer controlled by the factors that govern the growth of normal cells.
highly malignant tumors that arise from the connective tissues.
seeding within body cavities
Malignant neoplasm spread by - diffuse spread - occurs when neoplasms invade a natural body cavity. Example would be a GI tract cancer could penetrate the wall of the visceral peritoneum permitting the metastases to enter the peritoneal cavity
Malignant neoplasm spread by the major metastatic route of carcinoms (especially lung and breast) The pattern of lymph node involvement depends on the primary site of the neoplasm and the natural lymphatic drainage in that region.
Malignant neoplasm spread by tumor cells invade blood vessels and travel as a neoplastic emboli in the circulation. These neoplastic emboli are trapped in small vascular channels of distant organs where they invade the wall of the vessel and infiltrate and multiply in the surrounding tissue.
the study of a specific disease in a given population
the rate and illness or abnormality occurs
calculated by reviewing the population involved to statistically calculate the expected death rate.
diseases pass from one generation to the next through genetic information contained in the nucleus of each cell.
If the genes inherited from each parent are the same for a particular trait
If the genes differ for that trait
always produce an effect regardless of whether the person is homozygous or heterozygous.
genes that manifest on when the person is homozygous.
alterations in the DNA structure that may become permanent hereditary changes if the affect the gonadal cells.
forms antibodies to counteract antigens in the form of a vaccine.
what is produced when the body is exposed to antigens?
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