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Related Concept Videos

Overview of the Heart01:07

Overview of the Heart

The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's structure...
Chambers of the Heart01:16

Chambers of the Heart

The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
Location and Orientation of the Heart01:13

Location and Orientation of the Heart

The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Anatomy of the Heart01:20

Anatomy of the Heart

The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
Anatomy of the Heart01:27

Anatomy of the Heart

The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.

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Articles linked to this work by shared authors, journal, and citation graph.

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[Informational function of heart and its apply if diagnostics of medical disease].

Voenno-meditsinskii zhurnal·2011
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[Morphohistochemical appraisal of the efficacy of hyperbaric oxygenation, cytochrome c, and thymalin in the management of experimental gastric ulcers].

Patologicheskaia fiziologiia i eksperimental'naia terapiia·1990
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[Autotransfusions of sorbent blood in treating peptic ulcer patients with an unfavorable course].

Vrachebnoe delo·1990
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[Functional and morphological characteristics of the digestive reaction of gastric mucosa].

Arkhiv anatomii, gistologii i embriologii·1990
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[Characteristics of arterial and venous hemodynamics in peptic ulcer and chronic gastroduodenitis].

Klinicheskaia meditsina·1990
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[Acute gastroduodenal ulcer caused by surgery of the biliary tract].

Vestnik khirurgii imeni I. I. Grekova·1990

Related Experiment Video

Updated: Jul 4, 2026

Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism
09:10

Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism

Published on: January 12, 2019

[Informational function of heart].

V M Uspenskiĭ

    Klinicheskaia Meditsina
    |July 1, 2008
    PubMed
    Summary

    The heart generates electric, magnetic, and hydrodynamic impulses that carry information throughout the body. A new technology transforms cardiac dynamics into patterns for diagnosing diseases.

    Area of Science:

    • Biophysics
    • Cardiology
    • Information Theory

    Context:

    • The human body utilizes various physiological signals for internal communication.
    • Understanding the informational capacity of cardiac impulses is crucial for diagnostics.

    Purpose:

    • To investigate the role of cardiac impulses as information carriers.
    • To develop a novel diagnostic technology based on cardiac signal analysis.

    Summary:

    • The study presents evidence that electric, magnetic, and hydrodynamic impulses from the heart act as information carriers.
    • A cardiac modulation mechanism and signal-accepting structures are proposed.
    • A new informational analysis technology transforms spatio-temporal cardiac dynamics into patterns for disease diagnostics.

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    Rodent Working Heart Model for the Study of Myocardial Performance and Oxygen Consumption

    Published on: August 16, 2016

    Monitoring Heart Function in Larval Drosophila melanogaster for Physiological Studies
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    Monitoring Heart Function in Larval Drosophila melanogaster for Physiological Studies

    Published on: November 16, 2009

    Related Experiment Videos

    Last Updated: Jul 4, 2026

    Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism
    09:10

    Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism

    Published on: January 12, 2019

    Rodent Working Heart Model for the Study of Myocardial Performance and Oxygen Consumption
    12:43

    Rodent Working Heart Model for the Study of Myocardial Performance and Oxygen Consumption

    Published on: August 16, 2016

    Monitoring Heart Function in Larval Drosophila melanogaster for Physiological Studies
    09:37

    Monitoring Heart Function in Larval Drosophila melanogaster for Physiological Studies

    Published on: November 16, 2009

    Impact:

    • This research introduces a novel approach to preliminary diagnostics of latent or preclinical diseases.
    • A new computer diagnostic system has been developed, offering potential for early disease detection.