Related Experiment Video

Updated: Jul 13, 2026

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection
08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

Non-functioning posterior communicating arteries of circle of Willis in idiopathic sudden hearing loss

C De Felice, B De Capua, R Tassi

    Lancet (London, England)
    |November 10, 2000
    PubMed

    More Related Videos

    Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging12:00

    Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging

    Published on: March 2, 2015

    Surgical Treatment of an Endolymphatic Sac Tumor04:34

    Surgical Treatment of an Endolymphatic Sac Tumor

    Published on: May 26, 2023

    Related Concept Videos

    The Arch of Aorta01:10

    The Arch of Aorta

    The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
    Encircling the heart, the coronary arteries form a ring-like structure before...
    Arteries of the Head and Neck01:26

    Arteries of the Head and Neck

    The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
    The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
    Cardiovascular System Abnormal Findings I: Inspection and Palpation01:29

    Cardiovascular System Abnormal Findings I: Inspection and Palpation

    In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
    Abnormal findings observed during an inspection
    Cardiovascular System Abnormal Findings II: Auscultation01:25

    Cardiovascular System Abnormal Findings II: Auscultation

    Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
    Abnormal Heart Sounds
    Gallops:
    Aortic Regurgitation I: Introduction01:15

    Aortic Regurgitation I: Introduction

    IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
    Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

    Aortic Regurgitation II: Clinical Features and Diagnostic Tests

    Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...