efferent fibers from t.. Heart Surface anatomy and heart sounds -Dry lecture -Gray s 169,
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1 A patient is diagnosed with ischemia (i.e., lack of blood flow) in a left lobar pulmonary vein. The attending physician determines that the ischemia is due to a vasospastic episode. Constriction of this left lobar pulmonary vein is controlled by. A. Efferent fibers from the phrenic nerve. B. Post-ganglionic fibers from T1-T4 sympathetic trunks C. Post-ganglionic fibers from the vagus n. D. Afferent fibers from the phrenic nerve E. Sympathetic fibers from the vagus n. 0% 0% 0% 0% 0% 0 of 5 efferent fibers from t.. sympathetic fibers fr.. sympathetic fibers fr.. parasympathetic fiber... afferent fibers from th... Heart Surface anatomy and heart sounds -Dry lecture -Gray s 169, Heart -Gray s pp Gray s dissector pp
2 Subdivisions of the Mediastinum The Heart 2
3 The Heart Pericardium Pericardium 1. Fibrous pericardium (external sac) 2. Serous pericardium (internal sac) (parietal layer lines the inner surface of the fibrous) (visceral layer [epicardium] adheres to the heart) Syllabus p. 41 3
4 Vessels and Nerves of the Pericardium A patient is diagnosed with cardiac tamponade. Pericardiocentesis is needed to drain fluid from the pericardial cavity to relieve pressure on the heart. To remove fluid a wide bore needle is inserted through the intercostal space near the and passed superoposteriorly. A. 5 th or 6 th, infrasternal angle B. 5 th or 6 th, mid-axillary line C. 2 nd, sternal angle D. 2 nd, jugular notch E. 5 th or 6 th, mid-vertebral line 0% 0% 0% 0% 0% 0 of 5 5th or 6th, sternum, in... 5th or 6th, mid-axillary... E. 5th or 6th, mid-ver... C. 2nd, sternal angle,... D. 2nd, sternal angle,... 4
5 Cardiac Tamponade Walls of the Heart Syllabus p. 41 5
6 General Features of the Heart Arterial Supply of the Heart Syllabus p. 42 6
7 Coronary Angiography Arterial Supply of the Heart Venous Drainage of the Heart 7
8 Chambers of the Heart Right Atrium Syllabus p. 44 8
9 Tricuspid Valve and Right Ventricle Left Atrium and Ventricle 9
10 Heart Valves (Diastole) Ventricular Filling MV and TC valves close Syllabus p. 45 Heart Valves (Systole) Ventricular Contraction Semilunar valves close Syllabus p
11 Sympathetic Innervation of the Heart Syllabus p. 46 Parasympathetic Innervation of the Heart 11
12 Referred Pain Innervation of the Heart Sympathetic Innervation -Increases heart rate and force of contraction -Dilates coronary arteries Parasympathetic Fibers -Decreases heart rate and force of contraction -Constricts coronary arteries 12
13 Conduction System of the Heart Syllabus p. 48 Blood Flow to and from the Heart 13
14 An aneurysm in the aortic arch compresses the left vagus nerve and alters its activity. Stimulation of parasympathetic vagus nerves. 40% A. Increases heart rate B. Dilates coronary arteries C. Constricts coronary arteries D. Increases the force of the heartbeat E. Constricts pulmonary arteries 20% 20% 20% 0% Increases heart rate Dilates coronary arteries C. Constricts coronar... D. Increases the force.. E. Constricts pulmon... A thrombus develops in the right atrium of a patient and eventually lodges itself in the sinuatrial nodal branch artery. Identify the course of the thrombus from the right atrium to the sinuatrial nodal branch artery. 0 of 5 A. Right atrium, tricuspid valve, right ventricle, aortic valve, right coronary artery, sinuatrial nodal branch artery B. Right atrium, mitral valve, right ventricle, aortic valve, right coronary artery, sinuatrial nodal branch artery. C. Right atrium, tricuspid valve, right ventricle, aortic valve, left coronary artery, sinuatrial nodal branch artery. D. Right atrium, mitral valve, right ventricle, aortic valve, left coronary artery, sinuatrial nodal branch artery E. Right atrium, tricuspid valve, right ventricle, aortic valve, right coronary artery, right marginal branch, sinuatrial nodal branch artery Right atrium, tricuspi... C. Right atrium, tricu... Right atrium, mitral va... 0% 0% 0% 0% 0% D. Right atrium, mitral... E. Right atrium, tricus... 14
15 SCREEN 2 Subdivisions of the Mediastinum 15
16 Pericardial Parts 16
17 Vessels and Nerves of the Pericardium 17
18 Cardiac Tamponade Walls of the Heart 18
19 General Features of the Heart Arterial Supply of the Heart 19
20 Venous Drainage of the Heart 20
21 Blood Flow to and from the Heart Tricuspid Valve and Right Ventricle 21
22 Left Atrium and Ventricle Heart Valves (Cardiac Cycle) 22
23 Sympathetic Innervation of the Heart Sympathetic Innervation of the Heart 23
24 Parasympathetic Innervation of the Heart Visceral Sensory Fibers from the Heart Syllabus p
25 Referred Pain Conduction System of the Heart 25
26 Blood Flow to and from the Heart Syllabus p
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