In this article, we will discuss about the fascinating mechanism of human circulatory system. The human circulatory system consists of three components: heart, blood and blood vessels. There are two types of blood circulation system: pulmonary and systematic circulation. We will also discuss the mechanism of blood circulation in detail. We will also provide related references to understand the concept deeply.
INTRODUCTION OF MECHANISM OF HUMAN CIRCULATORY SYSTEM:
The human circulatory system, also known as the cardiovascular system, plays a vital role in maintaining the overall health and functionality of the body. It consists of the heart, blood vessels, and blood, working together to transport oxygen, nutrients, hormones, and waste products throughout the body. This article aims to provide a comprehensive understanding of the mechanism behind the human circulatory system.
COMPONENTS OF HUAMN CIRCULATORY SYSTEM:
1. THE HEART:
The heart, a muscular organ located in the chest, acts as a pump that propels blood throughout the body. It consists of four chambers: two atria and two ventricles. The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs for oxygenation, while the left side receives oxygenated blood from the lungs and pumps it to the rest of the body.
2. BLOOD VESSELS:
The circulatory system comprises three types of blood vessels: arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart to various organs and tissues, while veins transport deoxygenated blood back to the heart. Capillaries, the smallest blood vessels, connect arteries and veins, facilitating the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.
Blood is a specialized fluid that carries out numerous functions within the circulatory system. It consists of red blood cells (RBCs), white blood cells (WBCs), platelets, and plasma. RBCs transport oxygen to tissues and remove carbon dioxide, while WBCs play a crucial role in the immune response. Platelets aid in blood clotting, preventing excessive bleeding. Plasma, the liquid component of blood, carries nutrients, hormones, and waste products.
MECHANISM OF HUMAN CIRCULATORY SYSTEM:
The circulatory system operates through two types of circulation: systemic and pulmonary circulation. Systemic circulation involves the flow of oxygenated blood from the left side of the heart to the body’s organs and tissues, while deoxygenated blood returns to the right side of the heart. Pulmonary circulation, on the other hand, transports deoxygenated blood from the right side of the heart to the lungs for oxygenation, and oxygenated blood returns to the left side of the heart.
REGULATION AND CONTROL OF MECHANISM OF HUMAN CIRCULATORY SYSTEM:
The circulatory system is regulated by various mechanisms to ensure efficient functioning. The autonomic nervous system, specifically the sympathetic and parasympathetic divisions, controls heart rate and blood vessel constriction or dilation. Hormones, such as adrenaline and noradrenaline, released by the endocrine system, also influence heart rate and blood pressure. Additionally, the body’s pH, temperature, and oxygen levels are continuously monitored and adjusted to maintain homeostasis.
Understanding the mechanism of the human circulatory system is crucial for comprehending the body’s overall functioning and the impact of various diseases and conditions. The heart, blood vessels, and blood work together to ensure the delivery of oxygen, nutrients, and waste removal throughout the body. By exploring the intricate details of this system, researchers and medical professionals can develop effective treatments and interventions to maintain cardiovascular health.
Tortora, G. J., & Derrickson, B. (2017). Principles of Anatomy and Physiology. John Wiley & Sons. https://www.wiley.com/en-ie/Principles+of+Anatomy+and+Physiology,+15th+Edition-p-9781119320647
Silverthorn, D. U. (2018). Human Physiology: An Integrated Approach. Pearson. https://www.pearson.com/nl/en_NL/higher-education/subject-catalogue/biology/Human-physiology-silverthorn-8e.html
Hall, J. E. (2015). Guyton and Hall Textbook of Medical Physiology. Elsevier. https://repository.poltekkes-kaltim.ac.id/1147/1/Guyton%20and%20Hall%20Textbook%20of%20Medical%20Physiology%20(%20PDFDrive%20).pdf
National Heart, Lung, and Blood Institute. (n.d.). The cardiovascular system. https://www.nhlbi.nih.gov/health-topics/education-and-awareness/heart-and-vascular-system