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Related Concept Videos

Structure of Cardiac Muscles01:13

Structure of Cardiac Muscles

Cardiac muscle, or myocardium, is a specialized type of muscle found exclusively in the heart. Its unique structural and functional characteristics enable the heart to perform its vital role of pumping blood throughout the body continuously and rhythmically. The cardiac muscle cells, or cardiomyocytes, possess an endomysium and perimysium but do not have an epimysium.
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Specialized Characteristics of Cardiac Muscles01:27

Specialized Characteristics of Cardiac Muscles

The primary role of cardiac muscles is to propel blood throughout the cardiovascular system. The cardiac muscle cells, or cardiomyocytes, exhibit specialized characteristics that allow them to perform this function.
Cardiac muscle cells are smaller than skeletal muscles, averaging 10–20 mm in diameter and 50–100 mm in length. However, they have large energy demands for continuous contraction and relaxation. This energy is almost exclusively derived from aerobic metabolism of energy reserves in...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...

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Related Experiment Video

Updated: Jul 14, 2026

Analysis of Tubular Membrane Networks in Cardiac Myocytes from Atria and Ventricles
10:30

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Published on: October 15, 2014

[Morphologic study of cardiac myxomas].

Doina Butcovan1, Gr Tinică, L Stoica

  • 1Universitatea de Medicină şi Farmacie Gr. T. Popa Iaşi, Facultatea de Medicină Dentară, Disciplina de Morfopatologie.

Revista Medico-Chirurgicala a Societatii De Medici Si Naturalisti Din Iasi
|June 19, 2007
PubMed
Summary

This study examined cardiac myxomas operated between 2000-2004, analyzing tumor histology and macroscopic appearance. Findings correlate tumor types with clinical presentation for better diagnosis and treatment of cardiac myxomas.

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Area of Science:

  • Cardiovascular Pathology
  • Surgical Oncology

Context:

  • Cardiac myxomas are primary heart tumors.
  • Surgical intervention is the standard treatment for cardiac myxomas.

Purpose:

  • To conduct a morphological study of cardiac myxomas.
  • To evaluate tumor histology and macroscopic features.
  • To correlate tumor types with clinical presentation.

Summary:

  • Histological and macroscopic features of cardiac myxomas were analyzed.
  • Tumor types were classified based on gross appearance.
  • Correlation between tumor morphology and clinical symptoms was investigated.

Impact:

  • Provides insights into cardiac myxoma characteristics.
  • Aids in understanding the relationship between morphology and clinical presentation.
  • Contributes to improved diagnostic and therapeutic strategies for cardiac myxomas.