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Pulmonary Circulation: The circulation of the Blood through the Lungs.

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise

1Division of Pulmonary Medicine, University of Alberta, 2Faculty of Physical Education and Recreation, University of Alberta, 3Divisions of Critical Care and Cardiology, University of Alberta, 4Faculty of Rehabilitation Medicine, University of Alberta, 5G.F. MacDonald Centre for Lung Health

JoVE 54949


 Medicine

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets

1Department of Medicine, Pulmonary Hypertension Research Group (CRIUCPQ), Laval University, 2Institut National de la Recherche Agronomique, 3Université Diderot Paris, Sorbonne Paris Cité, 4Hôpital Lariboisière, Physiologie clinique Explorations Fonctionnelles, 5INSERM U 965, 6Service de Cardiologie, Centre Hospitalier Universitaire Tours

JoVE 52571


 Medicine

Right Ventricular Systolic Pressure Measurements in Combination with Harvest of Lung and Immune Tissue Samples in Mice

1Department of Environmental Medicine, New York University School of Medicine, Tuxedo, 2Division of Allergy, Pulmonary, & Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, 3Division of Pulmonary Medicine, New York University School of Medicine

JoVE 50023


 Immunology and Infection

Automated Measurement of Microcirculatory Blood Flow Velocity in Pulmonary Metastases of Rats

1Division of Plastic, Maxillofacial, and Oral Surgery, Duke University Medical Center, 2Department of Radiation Oncology, Duke University Medical Center, 3Department of Cardiology, University of Colorado Denver, 4Department of Physical Chemistry, University of Mainz

JoVE 51630


 Medicine

Isolation of CD146+ Resident Lung Mesenchymal Stromal Cells from Rat Lungs

1Sinclair Centre for Regenerative Medicine, Ottawa Hospital Research Institute, 2University of Ottawa, 3Department of Neonatology and Pediatric Critical Care Medicine, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, 4DFG Research Center and Cluster of Excellence for Regenerative Therapies (CRTD), Technische Universität, Dresden, 5Children's Hospital of Eastern Ontario Research Institute

JoVE 53782


 Biology

Cardiac Exam II: Auscultation

JoVE 10124

Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center

Proficiency in the use of a stethoscope to listen to heart sounds and the ability to differentiate between normal and abnormal heart sounds are essential skills for any physician. Correct placement of the stethoscope on the chest corresponds to the sound of cardiac valves closing. The heart has two main sounds: S1 and S2. The first heart sound (S1) occurs as the mitral and tricuspid valves (atrioventricular valves) close after blood enters the ventricles. This represents the start of systole. The second heart sound (S2) occurs when the aortic and pulmonary valves (semilunar valves) close after blood has left the ventricles to enter the systemic and pulmonary circulation systems at the end of systole. Traditionally, the sounds are known as a "lub-dub." Auscultation of the heart is performed using both diaphragm and bell parts of the stethoscope chest piece. The diaphragm is most commonly used and is best for high-frequency sounds (such as S1 and S2) and murmurs of mitral regurgitation and aortic stenosis. The diaphragm should be pressed firmly against the chest wall. The bell best transmits low-frequency sounds (such as S3 and S4) and the murmur of mitral stenosis. The bell should be applied


 Physical Examinations I

Two Methods for Decellularization of Plant Tissues for Tissue Engineering Applications

1Department of Surgery, University of Wisconsin-Madison, 2Department of Orthopedics and Rehabilitation, University of Wisconsin School of Medicine and Public Health, 3Department of Biomedical Engineering, University of Wisconsin College of Engineering, 4Department of Biomedical Engineering, Worcester Polytechnic Institute

JoVE 57586


 Bioengineering

Rat Model of the Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy (ALPPS) Procedure

1Institute of Physiology - Center for Integrative Human Physiology, University of Zurich, 2Department of Surgery, Rush University Medical Center, 3Department of Surgery, Cantonal Hospital Winterthur, 4Institute of Anesthesiology, University and University Hospital Zurich

JoVE 55895


 Medicine

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