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  2. Posterior interventricular sulcus - Wikipedia

    en.wikipedia.org/wiki/Posterior_interventricular...

    They can be known as subsinosal interventricular groove or paraconal interventricular groove respectively. It is located on the diaphragmatic surface of the heart [1] [2] near the right margin. [2] It extends between the coronary sulcus and the (notch of [2]) apex of the heart. It contains the posterior interventricular artery and middle ...

  3. Insular cortex - Wikipedia

    en.wikipedia.org/wiki/Insular_cortex

    The insular cortex is divided by the central sulcus of the insula, into two parts: the anterior insula and the posterior insula in which more than a dozen field areas have been identified. The cortical area overlying the insula toward the lateral surface of the brain is the operculum (meaning lid). The opercula are formed from parts of the ...

  4. Bundle of His - Wikipedia

    en.wikipedia.org/wiki/Bundle_of_His

    The bundle of His (BH) [1]: 58 or His bundle (HB) [1]: 232 (/ h ɪ s / "hiss" [2]) is a collection of heart muscle cells specialized for electrical conduction.As part of the electrical conduction system of the heart, it transmits the electrical impulses from the atrioventricular node (located between the atria and the ventricles) to the point of the apex of the fascicular branches via the ...

  5. Interoception - Wikipedia

    en.wikipedia.org/wiki/Interoception

    The posterior insular cortex is granular, the mid insular cortex is dysgranular (or slightly granulated) and the anterior insular cortex has no granulation whatsoever. The insula contains three major subregions defined by the presence or absence of a granule cell layer: granular , dysgranular (slightly granulated) agranular .

  6. Cardiac conduction system - Wikipedia

    en.wikipedia.org/wiki/Cardiac_conduction_system

    As the left posterior fascicle is shorter and broader than the right, impulses reach the papillary muscles just prior to depolarization, and therefore contraction, of the left ventricle myocardium. This allows pre-tensioning of the chordae tendinae, increasing the resistance to flow through the mitral valve during left ventricular contraction ...

  7. Cardiac muscle - Wikipedia

    en.wikipedia.org/wiki/Cardiac_muscle

    The heart muscle may become inflamed in a condition called myocarditis, [46] most commonly caused by a viral infection [47] but sometimes caused by the body's own immune system. [48] Heart muscle can also be damaged by drugs such as alcohol, long standing high blood pressure or hypertension, or persistent abnormal heart racing. [49]

  8. Crux cordis - Wikipedia

    en.wikipedia.org/wiki/Crux_cordis

    The crux cordis or crux of the heart (from Latin "crux" meaning "cross") is the area on the lower back side of the heart where the coronary sulcus (the groove separating the atria from the ventricles) and the posterior interventricular sulcus (the groove separating the left from the right ventricle) meet. [1]

  9. Bundle branches - Wikipedia

    en.wikipedia.org/wiki/Bundle_branches

    The bundle branches were separately described by Retzer and Braeunig as early as 1904, but their physiological function remained unclear and their role in the electrical conduction system of the heart remained unknown until Sunao Tawara published his monograph on Das Reizleitungssystem des Säugetierherzens (English: The Conduction System of the Mammalian Heart) in 1906. [4]