Methodological features of the presentation of cardiac muscle morphology in a histology course

Cherkas, O.A. (2023) Methodological features of the presentation of cardiac muscle morphology in a histology course. Морфологія = Morphologia, 17 (4). pp. 84-89. ISSN 1997-9665

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Abstract

Cardiac muscle, with its unique structural and functional characteristics, plays a crucial role in maintaining cardiovascular health. Understanding the intricacies of cardiac muscle morphology is a fundamental aspect of histology education, offering students insights into the specialized structure and function of the heart. Cardiac muscle is striated, similar to skeletal muscle, but it possesses unique characteristics that set it apart. Comprising individual cells known as cardiomyocytes, cardiac muscle forms the muscular layer of the heart, the myocardium. These cells are cylindrical, branched, and interconnected, forming a three-dimensional network that allows for coordinated contraction. A defining feature of cardiac muscle is the presence of intercalated discs, specialized regions where adjacent cardiomyocytes connect. These disc-like structures not only physically link cells but also facilitate rapid communication. This article provides an overview of the background and key methodological features of the presentation of cardiac muscle. Exploring the microscopic details of myocardium morphology is essential for comprehending how the heart functions as a dynamic pump. Knowledge of cellular architecture underlies the study of cardiac function. Understanding the structure of cardiac muscle fibers, the structural features of its sarcomeres and intercalated discs allows us to look for new opportunities in the prevention of diseases of the cardiovascular system. Methods. Lecture-based teaching, microscope-based teaching, computer-based teaching, problem-based learning, group-based learning. To effectively study cardiac muscle morphology, students and teachers will need access to high-quality histology textbooks, online resources, microscopes, and tissue slides. Results and conclusion. Cardiac muscle is not a static entity; it adapts dynamically to changing physiological demands. In response to increased workload, such as during exercise or pregnancy, cardiac muscle cells can undergo hypertrophy, enlarging to meet the increased demand. While this adaptation is beneficial in the short term, prolonged stress can lead to pathological hypertrophy and contribute to heart diseases. A comprehensive understanding of cardiac muscle structure is crucial for unraveling various cardiac pathologies. Diseases such as cardiomyopathies, heart failure, and arrhythmias often manifest as alterations in the structural components of cardiac muscle. Histological examination provides valuable insights into the cellular and molecular changes associated with these conditions, aiding in diagnosis and treatment. In conclusion, the intricate structure of cardiac muscle is a testament to the remarkable adaptation and specialization required for the heart to function as a continuous, efficient pump. From the macroscopic organization of the myocardium to the microscopic details of sarcomeres and intercalated discs, each structural component contributes to the harmonious symphony of cardiac function. As our understanding of cardiac muscle structure deepens, so does our ability to unravel the complexities of cardiovascular health and disease, paving the way for advancements in medical science and patient care.

Item Type:	Article
Additional Information:	DOI: 10.26641/1997-9665.2023.4.84-89
Uncontrolled Keywords:	cardiac muscle, cardiomyocyte, T-tubule, sarcoplasmic reticulum, muscle contraction, intercalated discs,sarcomere
Subjects:	Histology Morphology Teaching method
Divisions:	University periodicals > Morphology Departments > Department of Medical Biology, Botany and Pharmacognosy
Depositing User:	Аліна Чеботарьова
Date Deposited:	02 Apr 2024 10:32
Last Modified:	11 Apr 2024 07:27
URI:	http://repo.dma.dp.ua/id/eprint/8818

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