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Otitis Media: Inflammation of the Middle ear including the Auditory ossicles and the Eustachian tube.
 JoVE Immunology and Infection

Investigating the Effects of Probiotics on Pneumococcal Colonization Using an In Vitro Adherence Assay

1Pneumococcal Research, Murdoch Childrens Research Institute, 2Allergy & Immune Disorders, Murdoch Childrens Research Institute, 3Department of Otolaryngology, The University of Melbourne, 4Department of Microbiology & Immunology at the Peter Doherty Institute for Infection & Immunity, The University of Melbourne


JoVE 51069

 Science Education: Essentials of Physical Examinations II

Ear Exam

JoVE Science Education

Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA

This video describes the examination of the ear, beginning with a review of its surface and interior anatomy (Figure 1). The cartilaginous auricle consists of the helix, antihelix, earlobe, and tragus. The mastoid process is positioned just behind the earlobe. The slightly curving auditory canal ends at the tympanic membrane, which transmits sound waves collected by the external ear to the air-filled middle ear. The Eustachian tube connects to the middle ear with the nasopharynx. Vibrations of the tympanic membrane transmit to the three connected ossicles of the middle ear (the malleus, incus, and stapes). The vibrations are transformed into electrical signals in the inner ear, and then carried to the brain by the cochlear nerve. Hearing, therefore, comprises a conductive phase that involves the external and middle ear, and a sensorineural phase that involves the inner ear and cochlear nerve. The auditory canal and the tympanic membrane are examined with the otoscope, a handheld instrument with a light source, a magnifier, and a disposable cone-shaped speculum. It is important to be familiar with the tympanic membrane landmarks (

 JoVE Immunology and Infection

Using Bioluminescent Imaging to Investigate Synergism Between Streptococcus pneumoniae and Influenza A Virus in Infant Mice

1Department of Microbiology and Immunology, University of Melbourne, 2Laboratory of Pediatric Infectious Diseases, Radboud University Nijmegen Medical Centre, 3The Centre for Dynamic Imaging, The Walter and Eliza Hall Institute for Medical Research


JoVE 2357

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 JoVE Environment

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

1Division of Physical Therapy, Department of Orthopedics & Rehabilitation, University of New Mexico, 2Department of Ecosystem Science and Management, University of Wyoming, 3School of Pharmacy, University of Wyoming, 4Department of Environmental and Radiological Health Sciences, Colorado State University, 5Center for Environmental Medicine, Colorado State University, 6College of Pharmacy, California Northstate University


JoVE 52715

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 JoVE Medicine

Generation of Organ-conditioned Media and Applications for Studying Organ-specific Influences on Breast Cancer Metastatic Behavior

1London Regional Cancer Program, London Health Sciences Centre, 2Department of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, 3Department of Biochemistry, Schulich School of Medicine & Dentistry, Western University, 4Department of Oncology, Schulich School of Medicine & Dentistry, Western University, 5Lawson Health Research Institute


JoVE 54037

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 JoVE Bioengineering

Construction of Defined Human Engineered Cardiac Tissues to Study Mechanisms of Cardiac Cell Therapy

1Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, 2The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, 3Stem Cell & Regenerative Medicine Consortium, LKS Faculty of Medicine, University of Hong Kong


JoVE 53447

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 JoVE Biology

High Efficiency Differentiation of Human Pluripotent Stem Cells to Cardiomyocytes and Characterization by Flow Cytometry

1Department of Biochemistry, Medical College of Wisconsin, 2Stanford Cardiovascular Institute, Stanford University School of Medicine, 3Department of Anesthesiology, Medical College of Wisconsin, 4Stem Cell and Regenerative Medicine Consortium, LKS Faculty of Medicine, Hong Kong University, 5Division of Cardiology, Johns Hopkins University School of Medicine, 6Cardiovascular Research Center, Biotechnology and Bioengineering Center, Medical College of Wisconsin


JoVE 52010

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 JoVE Bioengineering

Hollow Fiber Bioreactors for In Vivo-like Mammalian Tissue Culture

1Department of Chemical Engineering and Centre for Regenerative Medicine, University of Bath, 2MRC Centre for Drug Safety Science and Institute of Translational Medicine, University of Liverpool, 3Mechanical Engineering, University College London, 4Department of Applied Mathematics, Liverpool John Moores University


JoVE 53431

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 JoVE Medicine

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

1Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, 2Cardiovascular Research Center and Cardiology Division of the Department of Medicine, Massachusetts General Hospital, 3Cardiovascular Division, Brigham and Women's Hospital, 4Harvard Medical School, 5Department of Anesthesiology, Uniklinik RWTH Aachen, RWTH Aachen University, 6Center for Immunology and Inflammatory Diseases and the Division of Rheumatology, Allergy, and Immunology of the Department of Medicine, Massachusetts General Hospital


JoVE 54017

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 JoVE Biology

Preparation, Imaging, and Quantification of Bacterial Surface Motility Assays

1Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 2Eck Institute for Global Health, University of Notre Dame, 3Department of Applied and Computational Mathematics and Statistics, University of Notre Dame, 4INRS-Institut Armand-Frappier, 5Department of Biology, Indiana University, 6Department of Biological Sciences, University of Notre Dame


JoVE 52338

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 JoVE Immunology and Infection

The Ex Vivo Culture and Pattern Recognition Receptor Stimulation of Mouse Intestinal Organoids

1Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 2Department of Biomedical Engineering, Cornell University, 3School of Electrical and Computer Engineering, Cornell University, 4Department of Biomedical Engineering, Duke University


JoVE 54033

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 JoVE Medicine

Modeling Chemotherapy Resistant Leukemia In Vitro

1Alexander B. Osborn Hematopoietic Malignancy and Transplantation Program of the Mary Babb Randolph Cancer Center, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, 2Department of Neurobiology and Anatomy, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, 3Department of Microbiology, Immunology and Cell Biology, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine


JoVE 53645

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 JoVE Biology

Culturing of Human Nasal Epithelial Cells at the Air Liquid Interface

1Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, 2Department of Pediatrics, The University of North Carolina at Chapel Hill, 3Pulmonary Diseases and Critical Care, The University of North Carolina at Chapel Hill, 4Curriculum in Toxicology, The University of North Carolina at Chapel Hill


JoVE 50646

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