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  1. Hace 4 días · Learn about the structure, function, and diagram of the human heart, a four-chambered double pump that circulates blood through the body and lungs. Explore the evolution, electrical conduction, and diseases of the mammalian heart.

    • Heart

      The heart is the organ, or body part, that pumps blood...

    • Diastole

      diastole, in the cardiac cycle, period of relaxation of the...

    • Ventricle

      Ventricle, muscular chamber that pumps blood out of the...

    • Systole

      systole, period of contraction of the ventricles of the...

    • Atrium

      Atrium, in vertebrates and the higher invertebrates, heart...

    • Chambers

      Other articles where chamber is discussed: cardiovascular...

  2. Hace 3 días · The systemic circulation is a circuit loop that delivers oxygenated blood from the left heart to the rest of the body, and returns deoxygenated blood back to the right heart via large veins known as the venae cavae.

  3. en.wikipedia.org › wiki › MammalMammal - Wikipedia

    Hace 1 día · The mammalian heart has four chambers, two upper atria, the receiving chambers, and two lower ventricles, the discharging chambers. The heart has four valves, which separate its chambers and ensures blood flows in the correct direction through the heart (preventing backflow).

  4. Hace 5 días · The epicardium, previously viewed as a passive outer layer around the heart, is now recognized as an essential component in development, regeneration, and repair. In this review, we explore the cellular and molecular makeup of the epicardium, highlighting its roles in heart regeneration and repair in zebrafish and salamanders, as well as its ...

  5. Hace 4 días · The chordae tendineae are a group of string-like tendinous bands found within both ventricles of the heart. They arise from the tips of the papillary muscles on the inside of the wall of the ventricles and extend into the hollow lumen.

  6. Hace 4 días · A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle.

  7. Hace 5 días · Acute myocarditis can affect individuals of all ages, with some variation in underlying etiologies seen across the age and sex spectrum. 11 The spectrum of clinical symptoms ranges from isolated chest pain resembling an acute coronary syndrome or pericarditis-like presentation with typically good prognosis to more serious new or worsening heart failure with life-threatening hemodynamic ...