GE CLST 80A Lecture Notes - Lecture 13: Natural Killer Cell, Telomere, Thymus
10 Nov 2016
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Aging body systems, the immune, integumentary, and musculoskeletal systems. Older people have increased susceptibility to infections, so people take vaccines. Since the 80s, small pox is completely eradicated. Edward jenner is known as the the father of immunology. In our bone marrow, there are stem cells: No memory, present in humans and more primitive organisms. Deals with small injuries, such as cuts, stubbing a toe, etc. Many layers (langerhans cells and mast cells, are skin cells that are part of the immune. Normal aging causes cosmetic, keratinocytes, and dermis changes. These stem cells produce the cells that make up the adaptive immune system. Bt cell can randomly choose parts from chromosomal dna to make their rearranged. Immune cells can tur on telomerase during an immune response, so that they do not. The quality of regular antibodies decreases (little mutational events will eventually. Dna u(cid:374)dergo se(cid:374)es(cid:272)e(cid:374)(cid:272)e. it e(cid:454)te(cid:374)ds their (cid:862)(cid:373)ileage(cid:863) for repli(cid:272)ati(cid:374)g harm the the quality of the antibody) produced.
