This course offers a clear and structured understanding of how the human body functions — focusing on the mechanisms behind every process rather than memorization. It covers all major systems, including the nervous, cardiovascular, respiratory, renal, endocrine, gastrointestinal, muscular, and hematologic systems. Designed for medical students at the University of Jordan, the course connects theory with clinical relevance, providing simplified explanations, focused summaries, and practical insights to help you truly understand how the body works.