STRUCTURE OF THE HEART AND BLOOD VESSELS: ANATOMICAL, HISTOLOGICAL, AND FUNCTIONAL PERSPECTIVES

The cardiovascular system plays a fundamental role in maintaining life by ensuring the continuous circulation of blood throughout the body. This study aimed to examine the anatomical and histological structure of the heart and blood vessels and evaluate their functional significance in maintaining cardiovascular homeostasis. A descriptive literature review was conducted using scientific textbooks and peer-reviewed sources in anatomy, histology, and physiology. The findings revealed that the heart consists of four chambers, specialized cardiac muscle tissue, and an intrinsic conduction system that coordinates rhythmic contractions. Blood vessels, including arteries, veins, and capillaries, exhibit distinct structural adaptations that correspond to their specific physiological functions. Arteries are specialized for high-pressure blood transport, veins facilitate venous return, and capillaries provide efficient exchange of substances between blood and tissues. The study highlights the close relationship between cardiovascular structure and function and emphasizes the importance of understanding cardiovascular anatomy for the prevention, diagnosis, and treatment of cardiovascular diseases.