Comprehensive Guide to the Cardiovascular System: Heart, Blood Vessels & Circulation || Understanding the Cardiovascular System: Essential Notes for Nursing & Paramedic Students || Cardiovascular System Made Easy: Anatomy, Physiology & Clinical Insights || The Heart & Circulatory System: A Detailed Study for Healthcare Professionals
Cardiovascular System The cardiovascular system , also called the circulatory system , is responsible for circulating oxygen (O₂)🔵, nutrients 🍎, hormones 💉, and waste products 🚮 throughout the body. It ensures that tissues receive adequate oxygen supply and metabolic waste is removed efficiently. ANATOMY OF THE CARDIOVASCULAR SYSTEM 1️⃣ The Heart: The Central Pump 🔹 The heart is a muscular organ , about the size of a fist, located slightly left of the sternum in the mediastinum. 🔹 It beats 60-100 times per minute at rest and pumps about 5 liters of blood per minute . 💡 Structure of the Heart 🔸 The heart has four chambers : ✅ Right Atrium (RA) 🏠 – Receives deoxygenated blood 🔴 from the body via the superior and inferior vena cava . ✅ Right Ventricle (RV) 🏠 – Pumps blood to the lungs 🌬️ via the pulmonary artery . ✅ Left Atrium (LA) 🏠 – Receives oxygenated blood 🔵 from the lungs via the pulmonary veins . ✅ Left Ventricle (LV) 💪 – Pumps ...