BIOLOGY 174 Lecture Notes - Lecture 14: Endoplasmic Reticulum, Perforin, Golgi Apparatus

60 views3 pages

Document Summary

Lymphopoiesis lymphocyte formation occurs in red bone marrow from two populations of lymphoid stem cells. Thymus development of immunological competence: ability to respond to specific antigens. (where the t-cells mature) Peripheral tissues lymphoid tissues (lymph nodes, spleen, thymus, bone marrow, tonsils) Defense mechanism that occurs following exposure to an antigen. Adaptive immunity antigen presentation triggers specific defenses, or an immune response. Effective against: infected cells, cancer cells, foreign cells. Before an immune response can begin, t cells must be activated by exposure to the antigen: T cells cannot directly interact with antigen in body fluids. T cells can only recognize antigens that are bound to a glycoprotein called a major. Histocompatibility complex (mhc) protein on the plasma membrane of a cell. Mhc 1: found on plasma membranes of all body cells. When antigen (bacterium or virus) infects body cells, a piece of the antigen ends upp bound to the mhc 1 on the cell surface.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions