MODULE 3 Innate Immunity 1. Describe the composition‚ function‚ and the purpose of physical‚ mechanical‚ and biochemical barriers‚ The first line of defense against damage and infection is composed of tightly associated epithelial cells including those of the skin and the mucous membranes of the GI‚ GU‚ and respiratory tracts. The highly interconnected mucosal epithelial cell junctions prohibit the passage of microorganisms. Many infectious microorganisms are mechanically cleansed
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In any case‚ there are a few theories that attempts to clarify the pathophysiology of schizophrenia. Variations from the arrangement of the nervous system and abnormal changes in the cerebrum are in fact‚ the reasons for the disorder. The nervous system abnormalities lie in the wrong arrangement of contacts between nerve cells
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Introduction: Having a sound understanding of pathophysiology is imperative for all allied health practitioners within the Australian healthcare system. Pathophysiology is defined to be the functional changes associated with particular diseases (Webster‚ 2016). Knowledge of pathophysiology and its related mechanisms is essential as it helps with the thorough understanding of certain diseases‚ its aetiology and its impact on the patient’s day-to-day life (ANZPAC‚ 2012). The aim of all healthcare practitioners
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suffered from asthma experienced attack of wheezing breathlessness‚ chest tightness and coughing. There is no cure for asthma‚ but the majority of patients that receive proper treatment can continue with a normal life (Wexler‚ B. 2013). Pathophysiology The Pathophysiology of asthma is complex and involve airway inflammation with intermittent airflow obstruction and bronchial hyperresponsiveness. Asthma is the attack of the Paroxysmal dyspnea where airway inflammation and wheezing occur due to contraction
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Physiology Lab Review Questions for Final 7.2: Electrocardiogram (ECG) 1. The pacemaker region of the heart is the right atrium (SA node) ____________________________. 2. The conducting tissue of the heart located in the interventricular septum is the right and left bundle branches 3. Indicate the electrical events that produce each of these waves: a. P wave __atrial depolarization________________________________________________________. b. QRS wave __ventricular depolarization_________________________________________________
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Most theories on the pathophysiology of depression are based on measurement of indirect markers‚ neuro-imaging techniques‚ and post-mortem studies. Studies show that depression starts with abnormalities in the areas of the brain that are responsible for reward response‚ mood regulation‚ and executive functions. The neuro-imaging and post-mortem studies have indicated morphological changes shown by reductions in grey-matter volume and glial density in the prefrontal cortex and the hippocampus‚ which
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Chronic pancreatitis pathophysiology is unclear. However‚ Long tern alcohol use causes hypersecretion of protein in pancreatic productions‚ this then causes protein plugs and calculi to form inside the pancreatic channels. Therefore‚ alcohol abuse has a direct poisonous impact on the cells of the pancreas. Subsequently‚ patients with eating regimens such as low protein and high or low in fat are more at risk. Smoking is another aspect on the improvement of chronic pancreatitis (J V. Tsirambidis‚
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Labor and Delivery Pathophysiology Ashley Keyser Tarleton State University Nursing 3302 Diana Kunce-Collins RNC-MNN January 24‚ 2015 Labor and Delivery Pathophysiology Definition: The physiologic process during which the fetus‚ membranes‚ umbilical cord‚ and placenta are expelled from the uterus. (Medscape 2014) Etiology: According to research‚ the exact cause of labor has yet to be discovered. Labor normally starts when the fetus is mature enough to adjust easily to extra uterine life
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PATHOPHYSIOLOGY OF PEPTIC ULCER DISEASE Definition: Peptic ulcer disease is an excavation (hollowed-out area) that forms in the mucosal wall of the stomach. Erosion of a circumscribed area of mucous membrane is the cause. Predisposing Factors Precipitating Factors ➢ Age (40-60) > Malignant tumors ➢ Gender > Gastric Hyperacidity
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PATHOPHYSIOLOGY OF MYOCARDIAL INFARCTION Mechanisms of Occlusion Most MIs are caused by a disruption in the vascular endothelium associated with an unstable atherosclerotic plaque that stimulates the formation of an intracoronary thrombus‚ which results in coronary artery blood flow occlusion. If such an occlusion persists long enough (20 to 40 min)‚ irreversible myocardial cell damage and cell death will occur.5 The development of atherosclerotic plaque occurs over a period of years to decades
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