FISIOLOGIA DO SISTEMA CARDIOVASCULAR (PARA PROVA) FISIOLOGIA DE GUYTON - FISIOLOGIA HUMANA

PHYSIOLOGY OF THE CARDIOVASCULAR SYSTEM (FOR THE TEST) GUYTON'S PHYSIOLOGY - HUMAN PHYSIOLOGY [email protected] Instagram:   / facilitandoamedicina   Contribute to the channel: https://nubank.com.br/pagar/e34ys/j6T... or 00fe80f9-788d-4bbc-a35d-e59d863885a7 If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given to him. The cardiovascular system can be divided into two main parts: the pulmonary circulation (lesser circulation), which carries blood from the heart to the lungs and from the lungs back to the heart; and the systemic circulation (great circulation), which carries blood from the heart to all body tissues through arteries. The cardiovascular system is responsible for pumping and transporting blood, oxygen, nutrients, and other essential substances throughout the human body, while also removing metabolic waste. It consists of the heart, a muscular pump, blood, and blood vessels (arteries, veins, and capillaries). This system operates through two main circuits: the pulmonary circulation (which oxygenates blood in the lungs) and the systemic circulation (which distributes oxygenated blood to the rest of the body). Components of the Cardiovascular System Heart: A hollow, muscular organ located in the center and left side of the chest, with four chambers: two atria (upper) and two ventricles (lower). Blood: A fluid that transports oxygen, nutrients, carbon dioxide, and other substances. It is composed of plasma (the liquid part) and formed elements (red blood cells, white blood cells, and platelets). Blood Vessels: Arteries: Carry blood away from the heart. Veins: Carry blood back to the heart. Capillaries: Microscopic branches where exchanges of substances between the blood and tissues occur. Main Functions Oxygen and Nutrient Transport: Distributes oxygen and nutrients to all cells, tissues, and organs. Waste Removal: Collects carbon dioxide and other waste products from tissues, transporting them for disposal. Body Defense: Transports white blood cells to areas where there are invading microorganisms. Coagulation: Platelets participate in blood clotting, preventing bleeding. Circulation Cycles Pulmonary Circulation: Deoxygenated blood from the right side of the heart is pumped to the lungs, where it is oxygenated and returned to the left side of the heart. Systemic Circulation: Oxygenated blood is pumped from the left side of the heart throughout the body, and then deoxygenated blood returns to the right side of the heart. #CardiovascularPhysiology #GuytonCardiovascularPhysiology #GuytonPhysiology #humanphysiology #physiology #cardiovascularsystem