Explore the fundamental components of blood in this 15-minute biology lecture on plasma and blood cells. Delve into the characteristics and functions of red blood cells (RBCs), white blood cells (WBCs), and platelets. Gain a comprehensive understanding of hematology, blood physiology, and immunology, essential for medical exams such as MCAT, USMLE, NCLEX, DAT, and NEET. Learn about the composition and roles of plasma, the liquid component of blood, and discover how each type of blood cell contributes to maintaining overall health and fighting diseases.