Midterm A+P Arizona College of Nursing Exam | Questions & Answers (100 %Score)
Latest Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert
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What constitutes the cardiovascular system? - Heart, blood and blood vessels
What is the function of the cardiovascular system? - transportation of blood
Where is the heart located? - mediastinum, between lungs, surrounded by the pericardial sac
What are the layers of the pericardial sac? - fibrous pericardium and serous pericardium
Which is the inner layer of the pericardial sac? A) Fibrous pericardium B) Serous pericardium - Serous-
thin and delicate AKA the parietal layer
Layers of the heart wall: Epicardium/visceral pericardium - Consists of serous tissue and mesothelium
Layers of the heart wall: Myocardium - 2nd layer of the heart- This makes up the bulk of the heart and
consists of cardiac muscle tissue
Layers of the heart wall: Endocardium - innermost layer; is continuous with endothelial lining of blood
vessels; lines heart chambers and covers cardiac skeleton of valves
Four chambers of the heart - right atrium, right ventricle, left atrium, left ventricle
What are the right and left atrium separated by? - Interatrial septum
Each atrium has an external appendage called an: - Auricle who's rough appearance is caused by the
musculi pectinati
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