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Time left 0:0 A 55-year-old male presents to the emergency department with episodes of lightheadedness and palpitations. He has a history of hypertension and coron artery disease. An electrocardiogram shows sinus bradycardia. The patient is diagnosed with dysfunction of the sinoatrial node. Which of the following coronary arteries is most likely responsible for the compromised blood supply to the sinoatrial node? 1 3 4 2 5 6 O A. 1 B. 2 ○ C. 3 O D. 4 ○ E. 5

Time left 0:0 A 55-year-old male presents to the emergency department with episodes of lightheadedness and palpitations. He has a history of hypertension and coron artery disease. An electrocardiogram shows sinus bradycardia. The patient is diagnosed with dysfunction of the sinoatrial node. Which of the following coronary arteries is most likely responsible for the compromised blood supply to the sinoatrial node? 1 3 4 2 5 6 O A. 1 B. 2 ○ C. 3 O D. 4 ○ E. 5

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Time left 0:0 A 55-year-old male presents to the emergency department with episodes of lightheadedness and palpitations. He has a history of hypertension and coron artery disease. An electrocardiogram shows sinus bradycardia. The patient is diagnosed with dysfunction of the sinoatrial node. Which of the following coronary arteries is most likely responsible for the compromised blood supply to the sinoatrial node? 1 3 4 2 5 6 O A. 1 B. 2 ○ C. 3 O D. 4 ○ E. 5
Transcribed Image Text:Time left 0:0 A 55-year-old male presents to the emergency department with episodes of lightheadedness and palpitations. He has a history of hypertension and coron artery disease. An electrocardiogram shows sinus bradycardia. The patient is diagnosed with dysfunction of the sinoatrial node. Which of the following coronary arteries is most likely responsible for the compromised blood supply to the sinoatrial node? 1 3 4 2 5 6 O A. 1 B. 2 ○ C. 3 O D. 4 ○ E. 5
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