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Aorta: The main trunk of the systemic arteries.

Sterile Tissue Harvest

JoVE 10298

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN


In 1959 The 3 R's were introduced by W.M.S. Russell and R.L. Burch in their book The Principles of Humane Experimental Technique. The 3 R's are replacement, reduction, and refinement of the use of animals in research.1 The …

 Lab Animal Research

Near-infrared Fluorescence Imaging of Abdominal Aortic Aneurysms

JoVE 10394

Source: Arvin H. Soepriatna1, Kelsey A. Bullens2, and Craig J. Goergen1


1 Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana


2 Department of Biochemistry, Purdue University, West Lafayette, Indiana


Near-infrared fluorescence (NIRF) imaging…

 Biomedical Engineering

Abdominal Exam I: Inspection and Auscultation

JoVE 10088

Source: Alexander Goldfarb, MD, Assistant Professor of Medicine, Beth Israel Deaconess Medical Center, MA


Gastrointestinal disease accounts for millions of office visits and hospital admissions annually. Physical examination of the abdomen is a crucial tool in diagnosing diseases of the gastrointestinal tract; in addition, it can help…

 Physical Examinations II

Diagnostic Necropsy and Tissue Harvest

JoVE 10294

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN


Many animal experiments rely on final data collection time points that are gathered from the harvesting and testing of organs and tissues. The use of appropriate methods for the collection of organs and tissues can impact the quality of…

 Lab Animal Research

Abdominal Exam IV: Acute Abdominal Pain Assessment

JoVE 10120

Source: Joseph Donroe, MD, Internal Medicine and Pediatrics, Yale School of Medicine, New Haven, CT


Abdominal pain is a frequent presenting concern in both the emergency department and the office setting. Acute abdominal pain is defined as pain lasting less than seven days, while an acute abdomen refers to …

 Physical Examinations II

The Cardiac Cycle

JoVE 10887

The heart beats rhythmically in a sequence called the cardiac cycle—a rapid coordination of contraction (systole) and relaxation (diastole).

Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and empty blood into the ventricles before they contract. The electrical impulses are then conducted by the bundle of His and propagated to the left and right bundle branches. The signal is then conducted by Purkinje fibers in the ventricular walls, inducing ventricular contraction and pumping blood out of the heart. During diastole (relaxation), the heart fills with blood, and the cycle is repeated.

 Core: Biology

Palpation

JoVE 10143

Source: Jaideep S. Talwalkar, MD, Internal Medicine and Pediatrics, Yale School of Medicine, New Haven, CT


The physical examination requires the use of all of the provider's senses to gain information about the patient. The sense of touch is utilized to obtain diagnostic information through palpation.


 Physical Examinations I

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…

 Physical Examinations I

Biodegradable Magnesium Stent Treatment of Saccular Aneurysms in a Rat Model - Introduction of the Surgical Technique

1Department of Neurosurgery, Kantonsspital Aarau, 2Neuro Lab, Research Group for Experimental Neurosurgery and Neurocritical Care, Department of Intensive Care Medicine, University Hospital and University of Bern, 3Division of Neuroradiology, Department of Radiology, Kantonsspital Aarau

JoVE 56359

 Neuroscience
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