PSL301H1 Chapter Notes - Chapter 2: Innate Immune System, Humoral Immunity, Adaptive Immune System
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PSL301H1 Full Course Notes
Verified Note
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Document Summary
754-756 interactive physiology immune system (6th ed. The immune system serve three major functions. It tries to recognize and remove abnormal self. Protects the body from disease-causing invaders (pathogens ) Larger pathogens include parasite immunogens : substance that triggers body"s immune response. Antigens: immunogens that react with products of the respons. Dna/rna in a coat called capsid; some has envelope of phospholipid and protein. Cannot be killed by antibiotic, some can be killed by antiviral drugs. Replication cycle begins when invade, rid of capsid. Viruses can be released from host in 2 ways. Virus surround themselves with host membrane and bud off. The body has two lines of defense: Recruitment of assistance and coordination of the response. The attack on the invasion depend on. Cytokines: protein messengers released by one cells that can affect the growth or activity another. Antibodies : proteins secreted by certain immune cells. Innate immunity: present from birth - body"s nonspecific immune response.
