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Module 4 Ch 14 Case study

Module 4 Ch 14 Case study

Q 1. CLINICAL CASE REPORT: Chapter 14 Myocardial Infarction Case History/Background: If an artery is partially blocked, what happens to the resistance to blood flow in the artery? If flow through the artery doesn’t change, what happens to the velocity of flow? 2. How do electrical signals move from cell to cell in myocardium?

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1. Facts: Poiseuille's law says resistance (R) is inversely proportional to the radius. Velocity of flow through a tube equals the flow rate divided by the tube's cross sectional area. Integration and Analysis: - Partially blocking an artery decreases the effective radius for blood flow, so resistance increases and velocity also increases.