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Submandibular Gland: One of two salivary glands in the neck, located in the space bound by the two bellies of the digastric muscle and the angle of the mandible. It discharges through the submandibular duct. The secretory units are predominantly serous although a few mucous alveoli, some with serous demilunes, occur. (Stedman, 25th ed)
 JoVE Developmental Biology

Isolation and Characterization of Satellite Cells from Rat Head Branchiomeric Muscles

1Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 2Department of Biological Structure, University of Washington School of Medicine, 3Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center


JoVE 52802

 JoVE Biology

Intravital Microscopy for Imaging Subcellular Structures in Live Mice Expressing Fluorescent Proteins

1Intracellular Membrane Trafficking Unit, Oral and Pharyngeal Cancer Branch National Institute of Dental and Craniofacial Research, National Institutes of Health, 2Department of Biology, University of North Carolina at Chapel Hill, 3Department of Chemical & Biochemical Engineering and Department of Biomedical Engineering, Rutgers University


JoVE 50558

 Science Education: Essentials of Physical Examinations II

Lymph Node Exam

JoVE Science Education

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

The lymphatic system has two main functions: to return extracellular fluid back to the venous circulation and to expose antigenic substances to the immune system. As the collected fluid passes through lymphatic channels on its way back to the systemic circulation, it encounters multiple nodes consisting of highly concentrated clusters of lymphocytes. Most lymph channels and nodes reside deep within the body and, therefore, are not accessible to physical exam (Figure 1). Only nodes near the surface can be inspected or palpated. Lymph nodes are normally invisible, and smaller nodes are also non-palpable. However, larger nodes (>1 cm) in the neck, axillae, and inguinal areas are often detectable as soft, smooth, movable, non-tender, bean-shaped masses imbedded in subcutaneous tissue. Lymphadenopathy usually indicates an infection or, less commonly, a cancer in the area of lymph drainage. Nodes may become enlarged, fixed, firm, and/or tender depending on the pathology present. For example, a soft, tender lymph node palpable near the angle of the mandible may indicate an infected tonsil, whereas a firm, enlarged, non-tender lymph

 JoVE Medicine

Heterotopic Cervical Heart Transplantation in Mice

1Department of Cardiovascular Surgery, Division of Experimental Surgery, German Heart Center Munich, Technische Universität München, 2Institute of Pathology, Helmholtz Zentrum Munich, 3Department of Cardiovascular Surgery, Division of Experimental Surgery, German Heart Center Munich, Technische Universität München, 4Department of Cardiovascular and Thoracic Surgery, General Hospital Linz


JoVE 52907

 JoVE Medicine

A Novel Microsurgical Model for Heterotopic, En Bloc Chest Wall, Thymus, and Heart Transplantation in Mice

1Johns Hopkins University School of Medicine, 2Burn and Complex Wound Center, 3Section of Plastic and Reconstructive Surgery, University of Chicago Medical Center, 4Division of Plastic, Reconstructive, and Maxillofacial Surgery, R Adams Cowley Shock Trauma Center, 5Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, 6Vascularized Composite Allotransplantation (VCA) Lab, Johns Hopkins University School of Medicine


JoVE 53442

 JoVE Medicine

Murine Cervical Heart Transplantation Model Using a Modified Cuff Technique

1Center of Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery, Innsbruck Medical University, 2Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine


JoVE 50753

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 JoVE Biology

Reconstruction of 3-Dimensional Histology Volume and its Application to Study Mouse Mammary Glands

1Department of Medical Biophysics, University of Toronto, 2Platform Biological Sciences, Sunnybrook Research Institute, 3Department of Laboratory Medicine and Pathobiology, University of Toronto, 4Physical Sciences, Sunnybrook Research Institute, 5Department of Pathology and Laboratory Medicine, Medical University of South Carolina, 6Manitoba Institute of Cell Biology, University of Manitoba


JoVE 51325

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 JoVE Medicine

Initiation of Metastatic Breast Carcinoma by Targeting of the Ductal Epithelium with Adenovirus-Cre: A Novel Transgenic Mouse Model of Breast Cancer

1Tumor Microenvironment and Metastasis Program, Wistar Institute, 2Department of Pathology and Lab Medicine, Perelman School of Medicine, University of Pennsylvania, 3Department of Microbiology and Immunology and Department of Genetics, Geisel School of Medicine at Dartmouth, 4Division of Endocrine and Oncologic Surgery, Department of Surgery, Perelman School of Medicine, University of Pennsylvania, 5Rena Rowan Breast Center, Abramson Cancer Center, University of Pennsylvania, 6Center for Advanced Medicine, University of Pennsylvania


JoVE 51171

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 JoVE Cancer Research

How to Study Basement Membrane Stiffness as a Biophysical Trigger in Prostate Cancer and Other Age-related Pathologies or Metabolic Diseases

1Departamento de Genética, Facultad de Medicina, Universidad de la República (UDELAR), 2Department of Mechanistic Cell Biology, Max Planck Institute of Molecular Physiology, 3School of Biological, Biomedical & Environmental Sciences, University of Hull


JoVE 54230

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 JoVE Medicine

Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development

1Department of Internal Medicine, Division of Hematology and Oncology, University of California, Davis, 2Comparative Pathology Laboratory, UC Davis School of Veterinary Medicine, University of California, Davis, 3Merck Serono Research, Merck KGaA, Darmstadt, Germany


JoVE 50868

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 JoVE Immunology and Infection

Saliva, Salivary Gland, and Hemolymph Collection from Ixodes scapularis Ticks

1Microbiology and Pathogenesis Activity, Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 2Tick-Borne Diseases Activity, Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention


JoVE 3894

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 JoVE Neuroscience

A Visual Description of the Dissection of the Cerebral Surface Vasculature and Associated Meninges and the Choroid Plexus from Rat Brain

1Division of Neurotoxicology, National Center for Toxicological Research, 2Division of Personalized Nutrition and Medicine, National Center for Toxicological Research, 3Office of Planning, Finance, and Information Technology, National Center for Toxicological Research


JoVE 4285

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 JoVE Medicine

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer

1Joint Unit Hospices de Lyon-bioMérieux, 2Medical Diagnostic Discovery Department, BioMérieux, 3Department of Pathology and Cytology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 4Medical Faculty, Lyon 1 University, 5Data and Knowledge Laboratory, BioMérieux, 6Department of Biochemistry and Molecular Biology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, 7Department of Urology, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon


JoVE 50713

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 Science Education: Essentials of Physical Examinations II

Thyroid Exam

JoVE Science Education

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

The thyroid gland is located in the neck anterior trachea between the cricoid cartilage (above) and the suprasternal notch (below) (Figure 1). It consists of a right and left lobe connected by an isthmus. The isthmus covers the second, third, and fourth tracheal rings, and the lobes curve posteriorly around the sides of the trachea and esophagus. The normal gland, weighing 10 - 25 g, is usually invisible on inspection and often difficult to palpate. A goiter is an enlarged thyroid from any cause. In addition to assessing its size, it is important to palpate the thyroid for its shape, mobility, consistency, and tenderness. A normal thyroid is soft, smooth, symmetrical, and non-tender, and it slides upward slightly when swallowing. Symmetrical enlargement of a soft, smooth thyroid suggests endemic hypothyroidism due to iodine deficiency or one of two prevalent autoimmune disorders: Graves' disease or Hashimoto's thyroiditis. Thyroid nodules are common and usually incidental; however, 10% of thyroid nodules turn out to be malignant. They may be single or multiple, and are most often firm and non-tender. A tender, symmetrical goiter typically indicates thyr

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 JoVE Immunology and Infection

Fluorescence in situ Hybridizations (FISH) for the Localization of Viruses and Endosymbiotic Bacteria in Plant and Insect Tissues

1Department of Entomology, Volcani Center, 2Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, 3Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, 4The Institute of Plant Sciences, Volcani Center


JoVE 51030

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