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Vagus Nerve: The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).

Cranial Nerves Exam II (VII-XII)

JoVE 10005

Source:Tracey A. Milligan, MD; Tamara B. Kaplan, MD; Neurology, Brigham and Women's/Massachusetts General Hospital, Boston, Massachusetts, USA


The cranial nerve examination follows the mental status evaluation in a neurological exam. However, the examination begins with observations made upon greeting…

 Physical Examinations III

Physiological Correlates of Emotion Recognition

JoVE 10297

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California


The autonomic nervous system (ANS) controls the activity of the body's internal organs and regulates changes in their activity depending on the current environment. The vagus nerve, which innervates many of the internal organs, is an…

 Neuropsychology

Neural Regulation

JoVE 10835

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

The cephalic phase is a conditioned or learned response to familiar foods. Our appetite or desire for a particular food modifies the preparatory responses directed by the brain. Individuals may produce more saliva and stomach rumblings in anticipation of apple pie than of broccoli. Appetite and desire are products of the hypothalamus and amygdala—brain areas associated with visceral processes and emotion. After the cephalic phase, digestion is governed by the enteric nervous system (ENS) as an unconditioned reflex. Individuals do not have to learn how to digest food; it happens regardless of whether it is apple pie or broccoli. The ENS is unique in that it functions (mostly) independent of the brain. About 90% of the communication are messages sent from the ENS to the brain rather than the other way around. These messages give the brain information about satiety, nausea, or bloating. The ENS, as part of the peripheral nervous system, is also unique in that it contains both motor and sensory neurons. For example, the ENS directs smooth muscle movements that churn and propel food al

 Core: Nutrition and Digestion

Intra-Operative Neural Monitoring of Thyroid Surgery in a Porcine Model

1Department of Otorhinolaryngology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, 2Department of Otorhinolaryngology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, 3Department of Otorhinolaryngology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 4Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung Medical University, 5Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, 6Laboratory Animal Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, 7Department of Thyroid and Parathyroid Surgery, China-Japan Union Hospital and Jilin Provincial Key Laboratory of Surgical Translational Medicine, Jilin University, 8Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary; Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital; Department of Otology and Laryngology, Harvard Medical School, 9Division for Endocrine Surgery, Department of Human Pathology in Adulthood and Child-hood "G. Barresi", University Hospital G. Martino, University of Messina, 10Department of Anesthesiology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, 11Department of Anesthesiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University

JoVE 57919

 Medicine

Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability

1Wolfson Centre for Age-Related Diseases, King's College London, University of London, 2Department of Neuroimaging, James Black Centre, Institute of Psychiatry, King's College London, University of London, 3Institute of Neuroscience and Psychology, Wellcome Surgical Institute, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, 4Research Service, Edward Hines Jr. VA Hospital, 5Neurology Service, Edward Hines Jr. VA Hospital, 6Department of Molecular Pharmacology and Therapeutics, Neuroscience Research Institute, Loyola University Chicago, 7Department of Oncology, The Gray Institute for Radiation, Oncology and Biology, University of Oxford

JoVE 53106

 Medicine

Preclinical Model of Hind Limb Ischemia in Diabetic Rabbits

1Department of Biomedical Engineering, University of Texas at Austin, 2Division of Cardiology, University of Texas McGovern Medical School, 3Center for Laboratory Animal Medicine and Care, UT Health Science Center at Houston, 4Memorial Herman Heart and Vascular Center, Texas Medical Center, 5Institute for Cellular and Molecular Biology, University of Texas at Austin, 6The Institute for Computational Engineering and Sciences, University of Texas at Austin, 7Institute for Biomaterials, Drug Delivery and Regenerative Medicine, University of Texas at Austin

JoVE 58964

 Medicine

Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice

1Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute at Lake Nona, 2Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, 3Vanderbilt Mouse Metabolic Phenotyping Center, Vanderbilt University School of Medicine, 4Department of Pediatrics and Cellular and Integrative Physiology, Indiana University School of Medicine

JoVE 3188

 Medicine

Ferric Chloride-induced Canine Carotid Artery Thrombosis: A Large Animal Model of Vascular Injury

1Department of Neurological Surgery, Ohio State University, 2Department of Surgery, Ohio State University, 3Department of Surgery, Duke University, 4Department of Internal Medicine, Ohio State University

JoVE 57981

 Medicine

Combined Near-infrared Fluorescent Imaging and Micro-computed Tomography for Directly Visualizing Cerebral Thromboemboli

1Molecular Imaging and Neurovascular Research Laboratory, Dongguk University College of Medicine, 2Biomedical Research Center, Korea Institute of Science and Technology, 3Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, 4Departments of Radiology and Cancer Systems Imaging, University of Texas M.D. Anderson Cancer Center

JoVE 54294

 Medicine

Pre-clinical Model of Cardiac Donation after Circulatory Death

1Centre de recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), 2Deparment of pharmacology and physiology, Faculty of Medicine, Université de Montréal, 3Division of Cardiovascular Surgery, Toronto General Hospital, University Health Network, 4Department of surgery, Faculty of Medicine, Université de Montréal

JoVE 59789

 Medicine

A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats

1Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, 2Department of Neurosurgery, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, 3Department of Biophysics and Biochemistry, Faculty of Biology, Ecology, and Medicine, Oles Honchar Dnipro National University

JoVE 58875

 Behavior

Two-vessel Occlusion Mouse Model of Cerebral Ischemia-reperfusion

1Research Center of Translational Imaging, College of Medicine, Taipei Medical University, 2Radiogenomic Research Center, Taipei Medical University Hospital, Taipei Medical University, 3Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, 4Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, 5Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, 6Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, 7Division of General Surgery, Department of Surgery, Taipei Medical University Hospital

JoVE 59078

 Medicine

Laboratory Administration of Transcutaneous Auricular Vagus Nerve Stimulation (taVNS): Technique, Targeting, and Considerations

1Department of Biomedical Engineering, City College of New York, 2U.S. Army Research Laboratory, Aberdeen Proving Ground, 3Brain Stimulation Laboratory, Department of Psychiatry, Medical University of South Carolina, 4Department of Pediatrics, Medical University of South Carolina, 5Department of Neurology, Medical University of South Carolina, 6Ralph H. Johnson VA Medical Center

JoVE 58984

 Neuroscience

Vagus Nerve Stimulation As an Adjunctive Neurostimulation Tool in Treatment-resistant Depression

1Universitätsklinik für Psychiatrie und Psychotherapie, Carl von Ossietzky Universität Oldenburg, 2Universitätsklinikum Bonn AöR, Klinik und Poliklinik für Psychiatrie, 3Universitätsklinik für Neurochirurgie am Evangelischen Krankenhaus Oldenburg, Carl von Ossietzky Universität Oldenburg, 4Klinik für Neurodegenerative Erkrankungen und Gerontopsychiatrie, Abteilung für medizinische Psychologie, Klinik für Psychiatrie und Psychotherapie, Universitätsklinikum Bonn, 5Psychiatrische und Psychotherapeutische Klinik, Universitätsklinikum Erlangen

JoVE 58264

 Medicine

Impact of Intracardiac Neurons on Cardiac Electrophysiology and Arrhythmogenesis in an Ex Vivo Langendorff System

1Department of Cardiology-Electrophysiology, cNEP (cardiac Neuro- and Electrophysiology research group), University Heart Center, University Hospital Hamburg-Eppendorf, 2DZHK (German Center for Cardiovascular Research), 3Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf

JoVE 57617

 Medicine

Intracavernosal Pressure Recording to Evaluate Erectile Function in Rodents

1State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, 2Department of Andrology, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, 3School of Pharmaceutical Sciences, Nanjing Tech University, 4Department of Urology, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, 5Department of Ultrasound, Nanjing Qixia District Maternity and Child Health Care Hospital

JoVE 56798

 Biology

Using a Whole-mount Immunohistochemical Method to Study the Innervation of the Biliary Tract in Suncus murinus

1Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 2Department of Anatomy, Tokyo Medical University, 3Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University

JoVE 55483

 Biology

A Model of Free Tissue Transfer: The Rat Epigastric Free Flap

1Anatomy Department, NOVA Medical School, Universidade NOVA de Lisboa, 2Plastic and Reconstructive Surgery Department and Burn Unit, Centro Hospitalar de Lisboa Central - Hospital de São José, 3UCIBIO, Life Sciences Department, Faculty of Sciences and Technology, Universidade NOVA de Lisboa, 4CEDOC, NOVA Medical School, Universidade NOVA de Lisboa, 5Physics Department, Faculty of Sciences and Technology, LIBPhys, 6Pathology Department, Centro Hospitalar de Lisboa Central – Hospital de São José

JoVE 55281

 Medicine
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