Pathology Exam 3 Flashcards
A circulatory disturbanceA disease in which a person has excess amounts of tissue fluid present in the body
Edema (Dropsy)
substance which bathes and surrounds the body cells.
Tissue fluids
causes of edema
a. Increased permeability of the capillaries. The capillaries are allowing too much fluid in and not enough out. The cells are swelling.b. Increased capillary pressure due to venous obstruction or heart failure.c. Inflammatory conditions - due to injury.d. Fluid / electrolyte problems – post surgical problems
Examples of edema
Anasarca AscitesHydrothorax Hydropericardium Hydrocele Hydro-cephalus
Type of edemageneralized edema – edema scattered throughout the entire body
Anasarca
Type of edema excess tissue fluid in the abdominal cavity or peritoneal cavity.
Ascites
Type of edemaexcess tissue fluid in the thoracic or plural cavity.
Hydrothorax
Type of edemaexcess tissue fluid in the sack that surrounds the heart.
Hydropericardium
Type of edemaexcess fluid or edema of a sacculated cavity. Affects the scrotum in males
Hydrocele
Type of edemaexcess fluid in the cranial cavity - water on the brain. Affects the nervous system. Most commonly reported more in children than adults.
Hydro-cephalus
A circulatory disturbanceexcess blood in a body part or organ
Hyperemia (congestion)
types of hyperemia
Physiological hyperemiaPathological hyperemia Active hyperemia Passive hyperemia
types of hyperemiae.g., blushing - excess blood in a body part or organ due to increased functional demand.
Physiological hyperemia
types of hyperemiae.g., cyanosis - excess blood in a body part or organ due to disease
Pathological hyperemia
types of hyperemiaexcess blood in a body part or organ brought there by the arteries
Active hyperemia
types of hyperemiaexcess blood in a body part or organ due to venous obstruction, an obstruction which is present in the veins. Passive hyperemia is always pathologic.
Passive hyperemia
reddish blue discoloration seen in the tissues due to lack of oxygen
Cyanosis
a circulatory disturbancea reduction in the arterial blood supply to a body part or organ
Ischemia
the most common cause of ischemia is?
the presence of an attached blood clot present in an artery.
if left untreated, what is the effect of ischemia?
death - infarction (death of tissue due to interference of blood supply).
a circulatory disturbancethe process by which there is the presence of an attached blood clot during life.
Thrombosis
single blood clot
Thrombus
two or more blood clots
Thrombi
causes of thrombosis (4)
a. Injuries to blood vessels.b. Slower or reduced rate of blood flow.c. Alterations in blood composition.d. Blood diseases - becoming thin from within such as leukemia.
locations of thrombi
a. Veins b. Arteriesc. chambers of the heart
the most common site for thrombi
veins
thrombi in the lower extremities would cause
DVTdeep vein thrombosis
the least common site for thrombi
chambers of the heart
the chambers of the heart is the least common site for thrombi. Why?
they were shipped to the heart from another part of the body
when a thrombi changes location it becomes?
mural