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Related Concept Videos

Anatomy of the Heart01:27

Anatomy of the Heart

119.5K
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.
119.5K
Anatomy of the Heart01:20

Anatomy of the Heart

2.9K
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...
2.9K
Overview of the Heart01:07

Overview of the Heart

13.2K
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...
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Conduction System of the Heart01:19

Conduction System of the Heart

12.8K
Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
12.8K
Conduction System of the Heart01:20

Conduction System of the Heart

3.6K
The cardiac conduction system produces and transmits electrical impulses that prompt myocardial contraction, ensuring efficient heart function. This intricate system ensures that the heart beats in a coordinated and efficient manner, beginning with the atria and then the ventricles. The conduction system optimizes cardiac output by maintaining this precise sequence, which is crucial for adequate blood circulation.
This system relies on the unique properties of nodal and Purkinje cells:...
3.6K
Tissue Transplantation01:24

Tissue Transplantation

945
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
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Related Experiment Video

Updated: Jan 24, 2026

A Modified Method for Heterotopic Mouse Heart Transplantion
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A Modified Method for Heterotopic Mouse Heart Transplantion

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Does the heart transplant have a future?

Matthias Fuchs1,2, David Schibilsky1,2, Wolfgang Zeh1,2

  • 1Department of Cardiovascular Surgery, Heart Center University Freiburg - Bad Krozingen, Bad Krozingen, Germany.

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|May 21, 2019
PubMed
Summary
This summary is machine-generated.

Heart transplantation is the most effective treatment for advanced heart failure, but challenges remain in organ preservation, allocation, and recipient management. Innovations like ex vivo perfusion are emerging to address these complex issues in cardiac transplant medicine.

Keywords:
Heart failureHeart transplantLong-term survivalMechanical circulatory support

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Last Updated: Jan 24, 2026

A Modified Method for Heterotopic Mouse Heart Transplantion
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Area of Science:

  • Cardiology
  • Transplant Medicine
  • Immunology

Background:

  • Heart failure is a leading global cause of death, with rising prevalence.
  • Heart transplantation remains the most effective long-term treatment for advanced heart failure.
  • Evolving donor and recipient characteristics necessitate complex decision-making in organ acceptance and management.

Purpose of the Study:

  • To review current challenges and advancements in heart transplantation.
  • To discuss strategies for optimizing organ retrieval, conservation, and allocation.
  • To explore methods for preventing graft failure, rejection, and secondary morbidities.

Main Methods:

  • Review of current scientific literature and transplant practices.
  • Discussion of pathophysiological understanding in heart failure and transplantation.
  • Examination of emerging technologies such as ex vivo perfusion systems.

Main Results:

  • Significant challenges persist in minimizing ischemic injury, optimizing organ allocation, and matching donor-recipient characteristics.
  • Ex vivo perfusion technologies show promise in improving organ viability and management.
  • Wide regional variations exist in heart transplant rates and the use of mechanical circulatory support devices.

Conclusions:

  • Despite advancements, heart transplantation faces ongoing challenges in organ management and recipient care.
  • Further research and technological innovation are crucial for improving outcomes in cardiac transplant medicine.
  • Standardizing practices and addressing regional disparities are essential for advancing heart failure treatment globally.