What are the types and functions of T cells in immunity.

T cells, also known as T lymphocytes, are a specific type of white blood cells (WBCs) that play a crucial role in the adaptive immune response of the human body. They help protect the body from various pathogens, such as viruses, bacteria, and diseases. T cells also maintain immunological balance in the body, but their dysfunction can lead to autoimmune or inflammatory disorders. In human body T cells and B cells play a major role in modulating immune responses. Nowadays, researchers focus on advanced studies of T cell isolates from blood to better understand the pathophysiology of immunological diseases, cancers, infectious diseases, and more. Functions of T cells in immunity regulation: T cells play a critical role in defending the body against infections and diseases and are fundamental for the functioning and regulating of a healthy immune system. There are various T cell subtypes, and each has a distinct purpose. Helper T cells (CD4+): These cells aid in activating ot...