Path Test 1 Flashcards
What is the study of disease?
Pathology
What are reversible, functional, and structural responses to changes in physiological states?
Adaptations
What occurs when failure of energy-dependent ion pumps in the plasma membrane leads to an inability to maintain ionic and fluid homeostasis?
Cellular swellling
What is the hallmark of reversible injuries?
Cellular swelling
What are the most characteristic findings associated with irreversible injuries?
Nuclear changes
What are one of the most important and most common causes of cell injury?
Hypoxia
Anoxia
What is the loss of blood supply in a tissue due to impeded arterial flow or reduced venous drainage?
Ischemia
What is the most common cause of hypoxia?
Ischemia
What is the paradoxical death of cels that are not otherwise irreversibly injured?
Ischemia reperfusion injury
What is a genetic inborn error that is caused via a hexosaminidase A deficiency?
Tay Sachs Disease
What is the decrease in size of the cell, tissue, or organ?
Atrophy
What atrophies after childhood?
Thymus
Hypertrophy leads to what?
Increased tissue size
Increased cell size
Hyperplasia leads to what?
Increased tissue size
Increased cell quantity
Pure hypertrophy occurs ONLY where?
Striated and Cardiac muscles
Endometrial hyperplasia is due to what?
Estrogen causing endometrial thickening
Prostatic hyperplasia is due to what?
Androgenic hormones causing enlargement of epithelial and stromal cells
What is the change of one cell type into another?
Metaplasia
What is the irregular cellular arrangement with nuclear atypia?
Dysplasia
What is caused from an increased absorption of dietary iron, hemolytic anemias, and repeated blood transfusions?
Hemosiderosis
What is caused from inhaled coal particles?
Anthracosis
Fat stored in the liver as triglycerides leads to what?
Steatosis
Steatosis is common in what type of patients?
Alcoholics
What is programmed cell death?
Apoptosis
Apoptosis can occur in what 2 forms?
Physiologic
Pathologic
What is the most common form of necrosis?
Coagulative
What type of necrosis occurs most often in the brain?
Liquefactive necrosis
What is a special type of coagulative necrosis such as tuberculosis and histoplasmosis?
Caseous necrosis
What type of necrosis is limited to fat tissue and usually occurs around the pancreas?
Enzymatic fat necrosis
What usually occurs on the lower extremities and is caused by a bacterial infection of coagulated tissue that causes tissue to become black?
Wet gangrene
What is the abnormal deposition of calcium salts in dead or dying tissues?
Dystrophic calcification
What is the abnormal deposition of calcium salts in normal tissues?
Metastatic calcification
Metastatic calcifications principally affect what parts of the body?
Gastric mucosa Kidneys Lungs Systemic Arteries Pulmonary Veins
What is the local physiological response to tissue injury?
Inflammation
What is the goal of the inflammation reaction?
Bring cells and molecules to the site of infection or tissue damage
What are the cardinal sighs of acute inflammation?
Rubor - redness Calor - heat Dolor - pain Tumor - swelling Loss of function
“Red Hot Painful Swelling causes Loss of Function
What is a plasma protein that is similar to histamine, but acts at a slower pace?
Bradykinin
What is a plasma-derived mediator of inflammation that is capable of inciting pain?
Bradykinin
What is released by mast cells, promotes contraction of endothelial cells, and leads to formation of gaps in lining of vessels?
Histamine
What are involved in vascular and systemic reactions of inflammation?
Prostaglandins
What are involved in vascular and smooth muscle reactions?
Leukotrienes
What suppresses inflammation by inhibiting the recruitment of leukocytes?
Lipoxins
What is the MOST common and medically important cause of inflammation?
Infections
What are the 3 major pathophysiology components of acute inflammation?
Dilation
Increased permeability
Emigration
What is extravascular fluid that has a high protein concentration and high specific gravity?
Exudate
What is fluid with low protein concentration and low specific gravity?
Transudate
What are the dominant cells of chronic inflammation?
Macrophages
What cells are characteristically found in inflammatory sites around parasitic infection typically associated with allergies?
Eosinophils
Serous inflammation causes fluid in the peritoneum, pleura, or pericardium called what?
Effusion
Purulent inflammation is characterized by what?
Production of pus
Localized collection of pus within an organ or tissue is called what?
Abscess
Localization of pus in a body cavity is called what?
Empyema
What is a local defect, or excavation of the surface of an organ or tissue?
Ulcers
What is used to describe the extensive deposition of collagen that occurs in the lungs, liver, kidney, and other organs as a consequence of chronic inflammation?
Fibrosis
What are the 3 steps in scar formation?
Angiogenesis - forms new blood vessels
Formation of granulation tissue - fibroblasts migrate
Connective tissue remodeling - produces fibrous scar
What are the 4 steps of wound healing?
Hemostasis
Inflammation
Proliferation
Tissue remodeling
During which phase of wound healing does the scab form?
Proliferation phase
- epithelialization
What is the primary site of drug metabolism?
Liver
What is first pass metabolism?
Absorption by GI tract, metabolism by liver and/or bowel
What does the first pass effect do?
Reduces bioavailability
All descendants from stem cells arise from where?
Bone marrow