Immunology An Introductory Textbook by Anil K. Sharma
Immunology an introductory textBook – Now a days almost all books are focusing breif Immunology or other major or minor subject but when you see this book this is mainly focus on the Basic essential concepts that we really need to know for our Medical school vivas as well as Examinations.
Immunology An Introductory Textbook
Exposure to a foreign substance leads to the recruitment of a variety of cells and signal molecules called “effector” in our body to destroy/neutralize that invader. Second exposure to same substance may
lead to a more rapid immune response by “memory” cells for the effective neutralization and cleaning of pathogen.
Skin and mucous membranes are effective barriers to the entry of most microbes. Skin consists of two distinct layers, i.e., epidermis (a thin outer layer of tightly packed epithelial cells), and dermis (consists of connective tissue, hair follicles, sebaceous, and sweat glands). Sebum, produced by sebaceous glands, is maintaining the pH range of 3–5, and thereby, preventing the growth of most
This barrier may be overcome by scratches, wounds or by penetration brought about by biting insects, hence allowing the entry of foreign invaders that can be the root cause of the development of infection.