System: Immune System

Learn how MHC II molecules present extracellular antigens to helper T cells, playing a key role in activating adaptive immune responses. This video explains the antigen processing steps, including endocytosis,…

Explore how MHC I molecules present intracellular antigens to cytotoxic T cells, a crucial step in immune surveillance against infected or abnormal cells. This video explains the antigen processing pathway,…

Learn how antibodies function in the immune system by neutralizing pathogens, activating complement, and tagging invaders for destruction by other immune cells. This video breaks down the key roles of…

Discover the structure and function of antibodies, key proteins produced by B cells that help identify and neutralize pathogens. This video explains the different antibody classes, their roles in immune…

Continue exploring the fundamentals of cancer by examining how it grows, invades surrounding tissues, and spreads through metastasis. This video also discusses the role of the immune system, angiogenesis, and…

Explore the process of mitosis, where a single cell divides to produce two genetically identical daughter cells. This video breaks down each phase—prophase, metaphase, anaphase, and telophase—and explains how chromosomes…

Explore how glucocorticoids work, including their anti-inflammatory and immunosuppressive effects at the cellular and molecular level. This video covers their mechanisms of action, clinical applications, side effects, and considerations for…

Learn how the adaptive immune system provides specific and long-lasting defense through the actions of B cells and T cells. This video explains antigen recognition, clonal expansion, memory formation, and…

Continue learning about the causes of liver cirrhosis with a focus on autoimmune, genetic, and biliary conditions. This video explains how these less common factors contribute to progressive liver damage…

Explore the fundamentals of inflammation, including its purpose, key cellular players, and the sequence of events in the inflammatory response. This video introduces the classic signs of inflammation and the…