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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Exam Case Scenario Pathophysiology of Asthma Asthma is a chronic lung disease characterized by episodes in which the bronchioles constrict due to oversensitivity. In asthma‚ the airways (bronchioles) constrict making it difficult to get air in or out of the lungs. Breathlessness is the main symptom. The bronchi and bronchioles become inflamed and constricted. Asthmatics usually react to triggers. Triggers are substances and situations that would not normally trouble an asthma free person. Asthma
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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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NUR 300 Exam #1 1. Which of the following clients is at a high risk for developing dilated cardiomyopathy? a. A 4-year-old child born with cerebral palsy and confined to a wheelchair b. A 44-year-old noncompliant female who forgets to take her hypertensive medications c. A 17-year-old with a diving injury resulting in paraplegia d. A 78-year-old patient with Alzheimer disease who received a third-degree burn following an oven fire 2. A client is experiencing muscle atrophy following 2 weeks
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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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he pathophysiology of ADHD is unclear and there are a number of competing theories.[87] Research on children with ADHD has shown a general reduction of brain volume‚ but with a proportionally greater reduction in the volume of the left-sided prefrontal cortex. These findings suggest that the core ADHD features of inattention‚ hyperactivity‚ and impulsivity may reflect frontal lobe dysfunction‚ but other brain regions particularly the cerebellum have also been implicated.[88] Neuroimaging studies
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Intensive and Critical Care Nursing (2008) 24‚ 28—40 ORIGINAL ARTICLE Pathophysiology of acid base balance: The theory practice relationship Sharon L. Edwards ∗ Buckinghamshire Chilterns University College‚ Chalfont Campus‚ Newland Park‚ Gorelands Lane‚ Chalfont St. Giles‚ Buckinghamshire HP8 4AD‚ United Kingdom Accepted 13 May 2007 KEYWORDS Acid base balance; Arterial blood gases; Acidosis; Alkalosis Summary There are many disorders/diseases that lead to changes in acid base balance
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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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