RUSVM Patholgy 1 Vocab 2
About this set
Created by:
JenRobinson35 on September 28, 2011
Subjects:
Description:
Dr. Illanes Powerpoints (Circulatory Disturbances 1)
Classes:
Log in to favorite or report as inappropriate.
Order by
46 terms
Terms | Definitions |
|---|---|
 Circulatory System | Consists of blood, a central pump, blood distribution and collection networks, and a system for exchange of nutrient and waste products between blood and extravascular tissue |
| Lymphatics | Parallel the veins also contribute to circulation by draining fluid from the extravascular spaces into the blood vascular system |
| Homeostasis | A tendency to stability in the normal body states |
| Microcirculation | Consists of arterioles, metarterioles, capillaries, and post capillary venules |
| Arterioles | Small arteries proximal to a capillary bed |
| Metarterioles | Arterial capillaries |
| Capillaries | Thin, semipermeable vessels that connect arterioles and venules; Composed of simple squamous cells which roll to produce a tube |
| Postcapillary venules | Small vessels that merge to form veins after collecting blood from a capillary network |
| Tunica Intima | Innermost layer of artery; Consists of subendothelial layer and endothelium |
| Tunica media | Middle layer of artery; Smooth muscle cells producing elastic reticular and collagenous fibers |
| Tunica adventitia | Outer layer of artery; Consists of loose connective tissue, blood vessels, lymphatics, and nerves |
| Valves | Located in veins; Projections into the lumen of the tunica intima; Covered by endothelial cells and have a core of elastic fiber |
| Fenestrations | Windows which increase transport in certain capillaries |
| Hemostasis | Arrest bleeding by the physiological properties of vasoconstriction and coagulation or by surgical means |
| Nitric Oxide | Relaxes vascular endothelium and causes vasodilation |
| Endothelin | Causes vasoconstriction of vascular endothelium |
| Continuous Capillaries Locations | Muscle, brain, bone, lung |
| Discontinuous Capillary Location | Hepatic and splenic sinusoids |
| Interstitium | Space between tissue compartments; medium through which all products must pass between the microcirculation and the cells; Composed of ECM and supporting cells |
| ECM | Composed of structural molecules and ground substance |
| Edema | Abnormal accumulation of excess extracellular water in intersitial spaces or body cavities |
| Pitting edema | When pressue is applied to an area of edema a depression or dent results as excessive interstitial fluid is forced to adjacent areas |
| Hydrothorax | Fluid in the thoracic cavity |
| Pericardial effusion | Mulberry heart disease (inflammatory edema) |
| Hydropericardium | Non-inflammatory fluid within the pericardial sac |
| Ascites/Hydroperitoneum | Fluid (transudate) with in the peritooneal cavity. |
| Anasarca | Generalized edema with profuse accumulation of fluid within the subcutaneous tissue |
| Bottle Jaw | Submandibular edema |
| Pulmonary edema | Circulatory failure: non-inflammatory edema |
| Hyperemia | Increase of arteriole-mediated engorgment of vascular bed. Blood is oxygenated. |
| Rubor | Reddening; One of the cardinal signs of inflammation |
| Congestion | Passive engorgement of vascular beds caused by a decreased outflow of blood |
| Hemorrhage | The escape of blood from the blood vessels (internal or external) |
| Hemorrhage by rhexis | Due to a substantial rent or tear in the vascular wall (or heart) |
| Hemorrhage by diapedesis | Due to a small defect in the vessel wall or RBC's passing through the vessel wall in cases of inflammation or congestion |
| Hemorrhagic diathesis | Increased tendency to hemorrhage from usually insignificant injuries |
| Hemothorax | Blood in the thoracic cavity |
| Hemoperitoneum | Blood in the peritoneal cavity |
| Hemarthrosis | Blood within a joint cavity |
| Hemoptysis | Coughing up of blood or blood-stained sputum from the lungs or airways |
| Epistaxis | Bleeding from the nose |
| Petechia | Hemorrhage within tissues up to 1-2 mm in size |
| Purpura | Hemorrhage within tissues greater than 3 mm |
| Ecchymosis | Hemorrhage within tissues greater than 1-2 cm |
| Suffusive hemorrhage | Hemorrhage within tissues larger than 1-2 cm and contiguous |
| Paint-brush hemorrhage | Most common on mucosal or serosal surfaces |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.