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Immune system

11 videos
3B: Chances are , you’ve had a fever or a cough at least once in your life (unless you live in a bubble, in which case you should probably go out more!) Have you ever wondered why your body reacts this way? Your body has a deadly arsenal of weapons against microbial invaders, ranging from bacteria and viruses to protozoans and fungi. We have specialized cells that destroy foreign bodies through mechanisms such as consumption, expulsion, and degradation. You will become acquainted with the interplay of the numerous soldiers in your body’s army and how they keep you healthy!

Role of phagocytes in innate or nonspecific immunity

VIDEO 16:20 minutes
Role of phagocytes in innate or nonspecific immunity. Neutrophils, macrophages, and dendritic cells. MHC II.

Types of immune responses: Innate and adaptive. humoral vs. cell-mediated

VIDEO 8:07 minutes
Overview of types of immune responses. Difference between innate and adaptive immunity. Differences between humoral adaptive immunity and cell-mediated adaptive immunity.

B lymphocytes (B cells)

VIDEO 14:13 minutes
Overview of B cells (B lymphocytes) and how they are activated and produce antibodies

Professional antigen presenting cells (APC) and MHC II complexes

VIDEO 11:33 minutes
How professional antigen presenting cells present parts of engulfed pathogens on MHC II complexes (major histocompatibility complexes).

Helper T cells

VIDEO 20:33 minutes
Introduction to helper T cells and their role in activating B cells

Cytotoxic T cells

VIDEO 10:06 minutes
How cytotoxic T cells get activated by MHC-I/antigen complexes and then proceed to kill infected cells

Review of B cells, CD4+ T cells and CD8+ T cells

VIDEO 11:07 minutes
Review of B cells, CD4+ T cells and CD8+ T cells

Clonal selection

VIDEO 9:49 minutes

Blood cell lineages

VIDEO 8:20 minutes