Human Anatomy: Blood and the Circulatory System

Have you ever wondered how your body transports oxygen, nutrients, and immune cells to every single tissue? Understanding the cardiovascular system is fundamental to biology, medicine, and personal health. This course provides a comprehensive, step-by-step guide to human blood and circulation. You will trace the journey of blood through the body, comprehend the structure of the heart, and explore the evolutionary differences in circulatory systems across species. What you will learn: - Understand the fundamental components of blood, including red blood cells, white blood cells, and platelets. - Map the flow of blood through the human heart, including its chambers, valves, and major blood vessels. - Compare the evolutionary structures of fish, amphibian, reptile, and mammalian hearts. - Explain the ABO blood grouping system, compatibility rules, and rare variations like the Bombay blood group. - Analyze how the lymphatic system works alongside cardiovascular circulation to maintain fluid balance. You will begin with foundational terminology and the basic composition of blood before moving into the mechanics of the heart and comparative evolutionary biology. Every concept is explained through clear text, logical breakdowns, and written self-assessment exercises. Designed for beginners, biology students, and curious learners, this course requires no prior background in medical science. Start reading today to build a solid foundation in human physiology.